Ultraviolet (UV) resonance Raman spectroscopy is a promising technique for the detection of trace explosives. For real-world applications, it is necessary to develop data evaluation algorithms that...
Optical stand-off detection of explosives and improvised explosive devices - OFDEX (2009)
Schnürer, F., Schweikert, W., Heil, M., Bunte, G., Krause, H., Fuchs, F., ...
The Fraunhofer Society pooled its know-how in the fields of explosives, laser spectroscopy, semiconductor-laser design and system integration in order to develop optical technologies for the...
Gehlen, C.D., Wiens, E., Noll, R., Wilsch, G., Reichling, K.
A significant parameter to monitor the status of concrete buildings like bridges or parking garages is the determination of the depth profile of the chlorine concentration below the exposed concrete...
OFDEX-optial stand-off detection of explosives and improvised explosive devices (2008)
Bronner, W., Fuchs, F., Köhler, K., Wagner, J., Wild, C., Bunte, G., ...
Online laser measurement technology for rolled products (2008)
Geometric quantities of rolled products can be measured online in the manufacturing process using laser measurement technology. Examples of laser inspection systems, which are in routine use in...
Fast vacuum slag analysis in a steel works by laser-induced breakdown spectroscopy (2008)
Sturm, V., Schmitz, H.-U., Reuter, T., Fleige, R., Noll, R.
Noll, R., Sturm, V., Aydin, Ü., Eilers, D., Gehlen, C., Höhne, M., ...
Noll, R., Sturm, V., Aydin, U., Eilers, D., Gehlen, C., Höhne, M., ...
This paper presents R&D activities to explore new laser parameter ranges in pulse energy, time and space for laser-induced breakdown spectroscopy. The collinear double pulse effect, which is well...
The influence of the ambient gas pressure on ablated material and the plasma state of laser-inducedplasmas using single and collinear double pulses is studied. A Q-switchedNd:YAG laser pulse is...
Mithilfe der Laser-Messtechnik lassen sich geometrische Größen von Walzprodukten online im Fertigungsablauf erfassen. Dabei erschließt diese Technik ein neues Potenzial von...
Die 100-Prozent-Prüfung im Fabrikbetrieb erfordert zuverlässige, robuste Messmittel und kürzeste Taktzeiten. Beispiele aus der Fertigung von Kfz-Teilen belegen, dass Lasertriangulationssensoren,...
Mithilfe der Laser-Messtechnik lassen sich geometrische Größen von Walzprodukten online im Fertigungsablauf erfassen. Dabei erschließt diese Technik ein neues Potenzial von...
Janzen, C., Noll, R., Uhl, W., Hoffmann, K.
DE 102007031244 B3 UPAB: 20090120 NOVELTY - The device has a focusing element (4) e.g. parabolic reflector, to focus an electromagnetic ring radiation (3) on a specimen (11), where a scattered...
Automatic sorting of aluminium alloys by fast LIBS identification (2006)
Aydin, Ü., Noll, R., Makowe, J.
The recycling process of aluminium requires only 5 % of the energy needed for the production of primary aluminium and saves natural resources. However, producing high-quality secondary aluminium out...
Online depth profiling of zinc coated sheet steel by laser-induced breakdown spectroscopy (2006)
Balzer, H., Hoehne, M., Hölters, S., Sturm, V., Noll, R., Leunis, E., ...
During the production of galvanised sheet steel, key monitoring parameters are the thickness and chemical composition of the zinc coating. For this purpose a new method was developed for the online...
In order to develop advanced mathematical algorithms for evaluating spark discharge and laser optical emission spectroscopic (OES ) data that give comparable results among different manufacturers and...
Laser-spectroscopic methods have a high potential for the remote detection of surface contaminations with residues of explosives, since they can operate contactless, fast and sensitive. Laser-induced...
Vorrichtung und Verfahren zur Durchfuehrung der Emissionsspektrometrie (2006)
Makowe, J., Noll, R., Aydin, U.
DE1004051310 A UPAB: 20060602 NOVELTY - Carrying out emission spectrometry using a pulsed laser comprises producing N plasmas within a time interval which is smaller than the distance between two...
Verfahren und Vorrichtung zur Durchfuehrung der Fluoreszenz- und Emisssionsspektrometrie (2006)
Makowe, J., Noll, R., Aydin, U.
DE1004051311 A UPAB: 20060706 NOVELTY - The method involves directing a pulsed laser radiation on a measuring object for generation of laser-induced fluorescence. The fluorescence signal emitted by...
Online multi-element analysis of the top gas of a blast furnace by LIBS (2006)
Sturm, V., Brysch, A., Noll, R., Brinkmann, H., Schwalbe, R., Mülheims, K., ...
The continuous and simultaneous monitoring of relative concentrations of Na, K, Zn and Pb as well as C, N, O, H, Ca and Fe - being constituents of top gas and dust particles carried therein - is...
Preparation and analysis of production control samples by a two-step method (2006)
Vrenegor, J., Sturm, V., Noll, R., Hemmerlin, M., Thurmann, U., Flock, J.
Production control samples are used in steel works to control the steel composition. During the solidification and cooling down of the samples taken from a steel melt a scale layer is formed at the...
Löbe, A., Vrenegor, J., Fleige, R., Sturm, V., Noll, R.
The sensitivity of laser-induced breakdown spectroscopy of solid samples depends on the number of ablated and excited analytes. Laser ablation of solid samples can be enhanced by using collinear...
Balzer, H., Hölters, S., Sturm, V., Noll, R.
LIBS can be used as an online method of characterizing galvanized coatings on sheet steel moving through a production line. The traversing sheet steel is irradiated with a series of single laser...
Balzer, H., Hoehne, M., Noll, R., Sturm, V.
In this study a new approach to the online monitoring of the Al depth profile of hot-dip galvanised sheet steel is presented, based on laser-induced breakdown spectroscopy (LIBS). The coating...
Terms and notations for laser-induced breakdown spectroscopy (2006)
A breakdown of the number of publications in the field of laser-induced breakdown spectroscopy (LIBS) since the early 1980s is shown in Fig. 1. These numbers are based on a database query in Chemical...
Industrial applications of LIBS (2006)
Noll, R., Sturm, V., Stepputat, M., Whitehouse, A., Young, J., Evans, P.
Bette, H., Noll, R., Müller, G., Jansen, H.-W., Nazikkol, C., Mittelstädt, H.
Verfahren und Vorrichtung zur Analyse fester Materialien mit der Laser-Emissionsspektrometrie (2005)
Noll, R., Sturm, V., Vrenegor, J.
DE 10361727 B UPAB: 20050805 NOVELTY - The method involves at least partly removing the surface coating (10) in a first phase with a pulsed laser beam (2,2',2'') focused onto the body (4) by an...
Janzen, C., Fleige, R., Noll, R., Schwenke, H., Lahmann, W., Knoth, J., ...
The miniaturization of analytical techniques is a general trend in speciation analytics. We have developed a new analytical technique combining high pressure liquid chromatography (HPLC) with...
Noll, R., Mönch, I., Klein, O., Lamott, A.
In the last years laser-induced breakdown spectroscopy was introduced in various industrial applications. Automated inspection machines were developed capable to operate under harsh ambient...
Balzer, H., Hoehne, M., Sturm, V., Noll, R.
In this study a new method for online analysis of the zinc coating of galvanized sheet steel based on laser-induced breakdown spectroscopy (LIBS) is presented. The coating is characterized with a...
Noll, R., Sattmann, R., Sturm, V., Winkelmann, S.
Significant improvements to the analytical performance of laser-induced breakdown spectrometry (LIBS) were achieved by the use of laser double pulses to ablate and excite the sample material to be...
Sturm, V., Vrenegor, J., Noll, R., Hemmerlin, M.
To control the steel composition during production in steel works, samples are taken from the melt. After solidification, the samples exhibit scale layers of about 0.1-1 mm thickness. At present, for...
High speed laser-induced breakdown spectrometry for scanning microanalysis (2004)
For the first time laser-induced breakdown spectrometry, with laser pulse repetition frequencies of up to 1 kHz, with single pulse evaluation is realized for scanning microanalysis of macroscopic...
Verfahren und Vorrichtung zur Durchfuehrung der Plasmaemissionsspektrometrie (2004)
WO2004003528 A UPAB: 20040213 NOVELTY - Before plasma generation, in addition to the spacing d between the auto-focusing optics (1) and the workpiece surface (4), additional geometric parameters P1,...
Laser-Präparation und Laser-Analyse von Produktionskontrollproben (2003)
Vrenegor, J., Sturm, V., Noll, R.
Laserstrahlung kann nicht nur zur Analyse von Probenmaterial mit LIBS, sondern auch zum lokalen Abtrag der Zunderschicht verwendet werden. Die Kombination von Laser-Abtrag und Laser-Analyse bietet...
Liquid steel analysis with laser-induced breakdown spectrometry in the vacuum ultraviolet (2003)
Peter, L., Sturm, V., Noll, R.
Laser-induced breakdown spectrometry (LIBS) with multiple pulse excitation has been applied for the multielemental analysis of liquid steel. The laser beam and the measuring radiation are guided...
Laser-induced breakdown spectroscopy (LIBS) was applied for simultaneous measurement of the elements C, H, N, and O in CO2-air, C3H8-CO2, and C3H8-N2 gas mixtures at atmospheric pressure. A single...
The use of laser-induced breakdown spectrometry (LIBS) for the analysis of heavy metals and brominated flame retardants in end-of-life waste electric and electronic equipment (EOL-WEEE) pieces is...
Slag analysis with laser-induced breakdown spectrometry (2003)
Kraushaar, M., Noll, R., Schmitz, H.-U.
Laser-induced breakdown spectrometry (LIBS) has been applied for multi-elemental analysis of slag samples from a steel plant. In order to avoid the time-consuming step of sample preparation, the...
Compact measuring system for laser emission spectrometry of coated and uncoated materials (2002)
Hilbk-Kortenbruck, F., Höhne, M., Noll, R.
Laser emission spectrometry, which is also known as laser-induced breakdown spectrometry (LIBS), has been successfully applied to the analysis of metallic and non-metallic materials for several years...
Kraushaar, M., Noll, R., Schmitz, H.-U.
Die Prozesssteuerung bei der Stahlherstellung geschieht teilweise durch die Analyse der dabei anfallenden Schlacke. Daher ist eine schnelle und genaue Analyse der Elementzusammensetzung sehr wichtig....
Stepputat, M., Noll, R., Miguel, R.
Technical polymers are used to manufacture components and housings for electrical appliances such as telephones, computer keyboards or household appliances. Various polymer matrices, e.g. ABS...
Stand und Perspektiven der Laser-Emissionsspektrometrie (2002)
Der entscheidende Vorzug der Laser-Emissionsspektrometrie, auch mit LIBS (laser-induced breakdown spectrometry) oder Laser-OES (laser optical emission spectrometry) bezeichnet, besteht in der...
Die meisten modernen Produktionsprozesse haben einen hohen Automationsgrad erreicht. Für eine sichere Prozessführung müssen sowohl die einzelnen Prozessschritte als auch die Qualität der...
Lasermesstechnik im industriellen Einsatz - ein Überblick (2002)
- Die Lasermesstechnik eröffnet neue Wege zur direkten Erfassung geometrischer und chemischer Größen in industriellen Anwendungen. Mit der Lasertriangulation können geometrische Größen - wie...
Online thickness measurement of flat products (2002)
Multi-sensor systems are capable of performing complex online measuring and inspection tasks on production lines
Verfahren und Vorrichtung zur Detektion von Oberflaechendefekten auf Messobjekten (2002)
DE 10117048 C UPAB: 20020910 NOVELTY - Method for detecting two- or three-dimensional defects in metal sheet or strip (3) comprises: (a) irradiating its surface using a laser diode array (1); (b)...
Laser-based elemental analysis of the top gas of a blast furnace (2002)
Brysch, A., Sturm, V., Noll, R., Denecke-Arnold, H., Brinkmann, H., Mülheims, K., ...
The production of high quality hot metal in the steel-making industry with relatively low costs, is the most important prerequisite for an economically competitive quality/price ratio of the steel...
Laser measuring technology. Applications for process and quality control in production lines (2002)
The majority of modern production processes has reached a high degree of automation. The involved process steps as well as the quality of the manufactured products have to be inspected on a routine...
Stepputat, M., Noll, R., Miguel, R.
During the recycling process of end-of-life waste electric and electronic equipment (EOL-WEEE), downgrading of valuable technical polymers has to be avoided by separating the collected material in...
Online-Überwachung von Aerosolen im Hochofen-Gichtgas durch Laser-Emissionsspektrometrie (2002)
Brysch, A., Sturm, V., Noll, R.
LIBS (Laser-induced breakdown spectrometry) ist eine Methode mit einem breiten Anwendungspotenzial für Analysenaufgaben wie Prozesskontrolle und Qualitätssicherung. Ein Anwendungsbereich in der...
Stepputat, M., Noll, R., Miguel, R.
Technical polymers are used to manufacture components and housings for electrical appliances such as telephones, computer keyboards or household appliances. Various polymer matrices, e.g. ABS...
Sturm, V., Brysch, A., Peter, L., Noll, R.
DE 19957808 A UPAB: 20010801 NOVELTY - Two laser pulses are delivered, separated by a sub-millisecond interval, each focused at the same or a different location (10, 11) along the flow path. The...
Noll, R., Sturm, V., Peter, L., Hakala, R., Viirret, J., Gudenau, H.W., ...
Hilbk-Kortenbruck, F., Noll, R., Wintjens, P., Falk, H., Becker, C.
The investigation of a hyphenated technique combining laser-induced breakdown spectrometry (LIBS) with laser-induced fluorescence (LIF) for the analysis of heavy metals in soils is described. In...
Stimulated Brillouin scattering of Q-switched laser pulses in large-core optical fibres (2001)
Pashinin, V., Sturm, V., Tumorin, V., Noll, R.
Q-switched Nd : glass laser pulses of 60 ns duration are transmitted through multimode fused-silica fibres of 0.4-1 mm core diam and lengths of up to 20 m. For laser radiation with narrow spectral...
Noll, R., Bette, H., Brysch, A., Kraushaar, M., Mönch, I., Peter, L., ...
Recent progress in sensitivity and signal processing opened a broad field of application for laser-induced breakdown spectrometry (LIBS) in the steel making and processing industry. Analyzed...
Laser-induced breakdown spectrometry (LIBS) (2001)
Hilbk-Kortenbruck, F., Bleich, R., Stepputat, M., Noll, R.
LIBS is a technique for the simultaneous multi-elemental analysis of substances in solid, liquid or gaseous phase and is particularly useful in elemental determination in environmental samples....
Schnelle, ortsaufgelöste Materialanalyse mittels Laser-Emissionsspektrometrie (LIBS) (2001)
Bette, H., Noll, R., Jansen, H.W., Mittelstädt, H., Müller, G., Nazikkol, C.
In this publication a new application for LIBS is presented. Steel cleanness analysis, i. e. the detection of inclusions and segregations in steel, is an important tool for quality assurance and...
Noll, R., Bette, H., Brysch, A., Kraushaar, M., Mönch, I., Peter, L., ...
Recent progress in sensitivity and signal processing opened a broad field of application for laser-induced breakdown spectrometry (LIBS) in the steel making and processing industry. Analyzed...
SPRINGER JOURNALS IN ECONOMICS (2001)
New York, Steinkopff Darmstadt, Get This, Weeks Faster, T. Ihori, M. J. Keen, ...
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Noll, R., Brysch, L., Hilbk-Kortenbruck, F., Kraushaar, M., Mönch, I., Peter, L., ...
Die Laser-Emissionsspektrometrie ist ein Verfahren mit einem breiten Anwendungspotenzial für on-line Analyseaufgaben zur, Kontrolle stoffabhängiger Prozesse und für Qualitätssicherungsaufgaben....
LIBS-LIF-spectroscopy for the in-situ analysis of heavy metals in soils (2000)
Hilbk-Kortenbruck, F., Noll, R., Wintjens, P., Falk, H., Becker, C.
Volltext: Laser-based spectroscopic techniques such as laser-induced breakdown spectrometry (LIBS) and laserinduced fluorescence (LIF) have been applied successfully to the chemical analysis of...
LIBS applications for production control in steel industries (2000)
Sturm, V., Peter, L., Mönch, I., Bette, H., Noll, R.
Volltext: Recent progress in sensitivity connected with an advanced design of equipment enable the laserinduced breakdown spectrometry (LIBS) to meet the requirements of real-world applications....
Laser identifies steel grades: A new approach to the automatic inspection of pipe fittings (2000)
Mönch, I., Noll, R., Buchholz, R., Worringer, J.
In view of growing demands on the quality of products, the chemical analysis of solid, liquid and gaseous substances gain in importance. In comparison to chemical methods, physical methods prevail...
Steel analysis with laser-induced breakdown spectrometry in the vacuum ultraviolet (2000)
Sturm, V., Peter, L., Noll, R.
Laser-induced breakdown spectrometry (LIBS) with multiple pulse excitation has been applied for the multielemental analysis of steel samples in the vacuum ultraviolet. The emission of the induced...
Elemental analysis of liquid steel by means of laser technology (2000)
Sturm, V., Peter, L., Noll, R., Viirret, J., Hakala, R., Ernenputsch, L., ...
Kraushaar, M., Noll, R., Schmitz, H.-U.
Spectrochemical analysis of heavy metals in soils with laser-based techniques (2000)
Hilbk-Kortenbruck, F., Noll, R., Wintjens, P., Falk, H., Becker, C.
Einsatz der Laser-Meßtechnik zur Analyse von Stahlschmelzen (2000)
Gudenau, H.W., Mavrommatis, K., Noll, R., Peter, L., Sturm, V., Hakala, R., ...
Verfahren zur Pruefung von Schweissnaehten (2000)
The method includes measuring the surface profile of a welded seam (2) as a reference and fixes reference coordinates, which are stored. The data so determined are stored, so that the welded seam to...
Triangulationsverfahren (2000)
The method involves directing two He-Ne or semiconductor laser beams (3,11) at separate spots (4,12) on the surface (2) which are imaged by a lens (5) on a row of charge-coupled photodetector...
Laser-OES. A universal technique for slag analysis (1999)
Schmitz, H.-U., Noll, R., Kraushaar, M.
Laser-OES offers the possibility of analysing slags without time and cost consuming sample preparation steps. With specially developed cartridges (MINKON), about 70% of usable samples were obtained...
Mönch, I., Peter, L., Priem, R., Sturm, V., Noll, R.
In plants of the chemical, nuclear and off-shore industry, application specific high-alloyed steels are used for pipe fittings. Mixing of different steel grades can lead to corrosion with severe...
Multi-elemental analysis of low-alloyed steel by laser-induced breakdown spectrometry (1999)
Peter, L., Sturm, V., Noll, R., Hakala, R., Viirret, J., Overkamp, B., ...
Laser-induced breakdown spectrometry is a non-contact in-situ method for the chemical analysis of various materials. Our R&D activities concentrate on the improvement of the analytical features of...
Automatic laser-based identification and marking of high-grade steel qualities (1999)
Noll, R., Peter, L., Mönch, I., Sturm, V.
A manufacturer of different types of stainless piping components for chemical and offshore industries has to assure that no mixing up of steel qualities occurs in the production line up to the final...
Transferstandard für die Laserthermometrie (1998)
Rieck, C., Bödefeld, B., Noll, R., Fischer, J., Edwards, G., Pealat, M.
Goal of the project was the construction of a transfer standard for laser thermometry (TSL). For that purpose a furnace has been constructed which provides optical access for the laser beams as well...
Laser-induced breakdown spectroscopy for polymer identification (1998)
Sattmann, R., Mönch, I., Krause, H., Noll, R., Couris, S., Hatziapostolou, A., ...
Laser-induced breakdown spectroscopy has been applied to polymer samples in order to investigate the possibility of using this method for the identification of different materials. The plasma...
Laser display joins the cast of a stage musical (1998)
In the opening scene of the musical Gambler, a dancer steps across the stage through a tunnel of light projected by a laser and scanning mirrors. He reaches up into the projected light so that his...
Noll, R., Mönch, I., Peter, L., Sturm, V.
Der chemischen Analyse fester, flüssiger und gasförmiger Stoffe kommt im Umfeld steigender Anforderungen an die Produktqualität eine wachsende Bedeutung zu. Physikalische Verfahren setzen sich...
Automatische Werkstoffanalyse mit Hilfe von Laserstrahlen (1998)
Um Materialverwechslungen auszuschließen, wurde in eine Produktionslinie von Rohrkomponenten eine Prüfmaschine installiert, die auf Basis der lasergestützten Plasma-Emissionsspektrometrie...
Verification of pollux cask seals by laser techniques (1997)
Rudolf, K., Noll, R., Richter, B.
The identity and integrity of final disposal casks of the Pollux type need to be reliably reverified during long term intermediate storage. A solution of this problem is the sealing of the cask by a...
Noll, R., Sattmann, R., Sturm, V.
A process is known for the marking, such as identifying and/or inscribing, of products in a production process using laser radiation which is applied to a specified surface area of a product, whereby...
Verfahren und Vorrichtung fuer die Emissionsspektroskopie (1997)
Process for emission spectroscopy, in particular laser emission spectroscopy, in which radiation (40) emitted by the laser-induced plasma of the substance under analysis is split up by a spectrometer...
A measurement system is described that detects the Doppler-shift of light scattered by an object surface to determine the time dependence of the velocity vector at several discrete points on the...
Noll, R., Sattmann, R., Sturm, V., Lüngen, S., Wachtendonk, H.J. Von
Durch eine gezielte Steuerung der Laserleistung (Lasermodulation) läßt sich die Wechselwirkung zwischen der Laserstrahlung des Nd:YAG-Lasers und dem Substrat (Stahl oder Stahlschmelze) kontrolliert...
High speed identification of polymers by laser-induced breakdown spectroscopy (1997)
Mönch, I., Sattmann, R., Noll, R.
One way to reduce the increasing waste streams of used polymers is an efficient material recycling. This requires a technology for the separation of polymer mixtures into different material...
Development of a transfer standard for laser thermometry (1997)
Rieck, C.J., Bödefeld, B., Noll, R., Edwards, G.J., Boyes, S., Pealat, M., ...
The measurement of gas temperatures is important in many combustion, chemical manufacturing and materials processing applications. Different laser spectroscopic methods are applied to measure the...
Automatic laser based material identification and marking, a new approach (1997)
Quay, R., Sattmann, R., Noll, R.
Laser-Induced Breakdown Spectroscopy (LIBS) is a remote, online, in situ technique used for the quantitative analysis of elemental constituents in matrices such as steels, non ferrous metals,...
Noll, R., Sturm, V., Peter, L., Whiteside, I.R.C.
Chemical analysis of gaseous, liquid and solid materials using laser spectroscopic methods offers new perspectives for on-line process control and quality assurance tasks in different industrial...
Multi-Element-Analyse von Stahllegierungen mit Laser-Emissionsspektroskopie (1996)
Noll, R., Sattmann, R., Sturm, V.
The effects of double pulse bursts from a Q-switch Nd:YAG laser on the laser-induced plasma of steel samples are investigated. Material removal and spectral line intensity are found to be increased...
Fiber-optic transmission of stretched pulses from a Q-switched ruby laser (1996)
Pflüger, S., Sellhorst, M., Sturm, V., Noll, R.
Fiber-optic transmission of Q-switched ruby laser pulses is limited by fiber damage owing to the high laser-beam intensities. Pulse stretching with a semiconductor-based control circuit for the...
Nebeling, H., Noll, R., Ostendarp, H., Sellhorst, M., Weck, M.
Für die Analyse des dynamischen Verhaltens mechanischer Strukturen wird eine neuartige Verfahrenskombination von experimenteller Modalanalyse (EMA) und holografischer Doppelpulsinterferometrie...
Sturm, V., Sattmann, R., Noll, R.
Up to six Q-switch pulses with interpulse separations of between about 2 and 100 mu s are extracted during single flashlamp pulses of a Nd: YAG laser (1.06 mu m) by opening the Pockels cell in up to...
Noll, R., Sattmann, R., Sturm, V., Lüngen, S., Wachtendonk, H.J. Von
The direct laser-based measurement of the composition of steel melts aims for the improvement of process and quality control in secondary metallurgy. This paper describes a novel approach which...
Sattmann, R., Sturm, V., Noll, R.
Single, double and multiple Q-switch Nd:YAG laser pulses are used to vaporise material from solid steel samples and to induce a plasma. The material ablation of different pulse bursts, emission...
Dreidimensionale holografische Interferometrie und Modalanalyse (1994)
Sellhorst, M., Ostendarp, H., Haas, C.R., Noll, R.
Durch die Verknüpfung des Meßverfahrens der holografischen Interferometrie mit den Methoden der experimentellen Modalanalyse (EMA) ist ein Meßsystem realisiert worden, mit dem die räumliche...
Doppelpuls-Interferometrie mit Lichtwellenleitern (1994)
Pflüger, S., Legewie, F., Noll, R.
Double-exposure-interferometry allows to measure contact-free vibrations and deformations of the whole surface of mechanical structures. The construction of the test equipment becomes considerably...
Marktübersicht: Triangulationssensoren (1994)
Triangulationssensoren messen Abstände berührungslos mit Licht. Sie haben in den vergangenen zehn Jahren in zahlreichen Anwendungen in der Produktionstechnik und Qualitätssicherung Eingang...
Laser-induced breakdown spectroscopy - a versatile tool for process control (1994)
Noll, R., Sattmann, R., Sturm, V.
Laser-induced breakdown spectroscopy (LIBS) is able to rapidly analyze the constituents of materials without contact under atmospheric conditions. Hence this method is predestined to applications...
Laser-based inspection of product shapes (1994)
Noll, R., Brandenburg, W., Aehling, H., Seiwert, S.
Laser-based inspection of product shapes on the basis of laser triangulation is a technique which is predestinated for on-line quality assurance purposes. The concept of a high precision...
Vorrichtung zum beruehrungslosen Messen von Objektschwingungen mit einem Laserstrahl (1993)
Device for the contact-less measurement of object oscillations comprising a laser beam (16), which is trained at different measuring points (17) in turn on the measured object (18) by means of a beam...
Verfahren und Vorrichtung zur Messung der Dichtigkeit hermetisch abgeschlossener Behaelter (1993)
Noll, R., Ruehl, F., Eisele, G.
Verfahren zur Messung der Dichtigkeit hermetisch abgeschlossener, insbesondere verderbliche Produkte enthaltender Behaelter (10), die in eine Pruefkammer (11) gebracht und dort einem Pruefdruck...
Verbundmaterial mit Laserlicht prüfen. (1993)
The contribution describes a new nondestructive laser technique which visualizes defects of quality relevance in compound materials. Usually these defects are observed by testing personal and...
Spatially resolved temperature measurements in a CO2 laser discharge by folded BOXCARS (1993)
Hertzberg, J., Noll, R., Herziger, G.
Broadband nitrogen CARS thermometry is used to study a discharge plasma of a CO2 laser in a folded BOXCARS arrangement. The CO2 laser discharge is set up as a longitudinal fast flow system with a...
Sensor measures sub-surface flaws (1993)
It is notoriously difficult to detect and measure faults below the surface of composite materials, such as carbon-fibre reinforced flaps for aircraft, radial tyres for lorries, and even sports shoes....
Materialprüfung mit Laserlicht (1993)
Ein neuartiges Lasermeßverfahren macht qualitätsentscheidende Materialfehler in Verbundmaterialien zerstörungsfrei mit Laserlicht sichtbar. Dieses Verfahren ist vollständig automatisierbar, um im...
Laserlicht zeigt Fehler in Verbundwerkstoffen. (1993)
Even if they are very small, faults in composite materials may have serious effects on the operating behaviour and the appearance of resultant components. This is especially true where maximum...
Formmessung und -prüfung mit Laserlicht (1993)
The determination and inspection of contours and shapes of workpieces is one of the most important measurement tasks in production and assembly. Contactless measuring techniques are expecially...
Vorrichtung zur optischen Messung von Werkstueckprofilen profilerzeugender Maschinen (1992)
Device for the optical measurement of machines producing workpiece profiles, in particular rolled profiles in a rolling gap (36), consisting of a light source (6) whose light beam (7) is trained onto...
Vorrichtung zum Messen von Profilen strangfoermigen Guts (1992)
Noll, R., Brandenburg, W., Aehling, H.
Device for the measurement of the profiles of strand-shaped objects, consisting of at least one light beam source (4), in particular a laser, which runs a spot of light (e.g. 8) over the profile (1)...
Verfahren zum Betreiben eines kurzwelligen Lasers (1992)
Noll, R., Haas, C.R., Weikl, B.
Short-wave laser, having a high-performance plasma system influencing its resonator volume, said plasma system consisting of a gas-filled cylindrical discharge vessel provided with laser radiation...
Brüggemann, D., Hertzberg, J., Wies, B., Waschke, Y., Noll, R., Knoche, K.-F., ...
An optical parametric oscillator (OPO), as a novel kind of broadband Stokes source, is employed for coherent anti-Stokes Raman spectroscopy (CARS). Compared to the conventional dye laser...
Die optische Fehlerdetektion in Bauteilen und Materialien auf der Basis der Lasermeßtechnik ermöglicht die flächenhafte und zerstörungsfreie Prüfung von Materialien und Bauteilen. Zur...
Lasergestützte Stoffanalysen zum Prüfen von Oberflächen (1992)
Der Laser ermöglicht ein neuartiges Meßverfahren zur schnellen und berührungslosen Stoffanalyse unter Produktionsbedingungen. Damit lassen sich Oberflächenschichten und Schichtsysteme online...
Contour measurements with lasers (1992)
Noll, R., Aehling, H., Seiwert, S., Brandenburg, W.
The laser enables a variety of different methods to measure the shape or the cross section of an object. From these the interferometric methods are characterized by accuracies up to the nanometer-...
Z-pinch used as a plasma lens for heavy ion beams (1991)
Elfers, M., Haas, C.R., Boggasch, E., Dietrich, K.-G., Hoffmann, D.H.H., Noll, R., ...
Focusing of a heavy ion beam the azimuthal magnetic field of a z-pinch discharge was observed. The experiment was carried out with a device, which has been designed to generate controlled plasma...
Steigerung der Meßgenauigkeit bei der Lasertriangulation (1991)
Aehling, H., Brandenburg, W., Noll, R.
Der Einsatz der Lasertriangulation in der 3D-Meßtechnik erfordert eine anwendungsorientierte Optimierung der Laser- und Detektorparameter. Der Einfluß dieser Parameter auf die Meßgenauigkeit wurde...
Die Leistungsmerkmale von Speckle-Interferometrie und holografischer Interferometrie werden an Hand von Anwendungsbeispielen dargestellt. Die Meßobjekte sind unter anderem Komponenten des...
Lasergestützte Stoffanalyse für die on-line Prüfung von Oberflächenschichten (1991)
A variety of different laser-based measuring techniques were developed for material analysis. Among these induced breakdown spectroscopy is a method, which is specially suited for on-line inspection...
Kunze, H., Noll, R., Hertzberg, J., Sattmann, R.
In Zusammenhang mit den ständig steigenden Anforderungen des Markts an die Qualität neuer Produkte gewinnt die Qualitätssicherung und die Prozeßkontrolle in der Produktionstechnik zunehmend an...
Holographic interferometry using an object-related reference (1991)
Kußmann, M., Noll, R., Haas, C.R.
Holographic Interferometry with cw-lasers for vibration analysis of mechanical structures requires a stable platform for the optical set-up and the test object. To reduce this expenditure an...
Noll, R., Haas, C.R., Kunze, H.
High-voltage insulation for low-inductance lines conveying pulsed electrical power, in particular for lines in laser systems or pulsed power systems and/or for joints in lines each having two spaced...
Entladungsanordnung in einem Laser (1991)
Noll, R., Haas, C.R., Kohnemann, R.
The description refers to a laser having a laser tube containing the laser medium and enclosing a coaxially arranged external tube forming an annular cavity at the end faces of which are located...
Einflußgrößen bei der laseroptischen Geometrievermessung heißer Werkstücke (1991)
Brandenburg, W., Aehling, H., Noll, R.
Berührungslose Meßverfahren, wie die laseroptische Konturenerfassung, eignen sich gegenüber herkömmlichen Verfahren für die on-line Messung im Rahmen der Qualitätssicherung. Für die...
Wanders, C., Haas, C.R., Lampe, S., Noll, R.
Um bei der Bauteilentwicklung schon frühzeitig aussagekräftige Daten über die auftretenden Schwingungsformen zu erhalten, werden eine Reihe von akustisch-schwingungstechnischen Verfahren...
Anwendungspotential für die computer-unterstützte Qualitätskontrolle mit Lasermeßverfahren (1991)
Wachsende Qualitätsansprüche in der Produktionstechnik sowie Forderungen nach ausschußfreier Fertigung setzen neue Maßstäbe für die Entwicklung von Prozeßüberwachungs- und Regelungssystemen....
Pulsed-power-generated plasma of high reproducibility (1990)
Kunze, H., Noll, R., Haas, C.R., Elfers, M., Hertzberg, J., Herziger, G.
Plasmas of high reproducibility that are suitable for beam-plasma experiments are generated by a pulsed-power z-pinch discharge. The z-pinch device is designed as a plasma target for the...
Energy loss of heavy ions in a dense hydrogen plasma (1990)
Dietrich, K.-G., Hoffmann, D.H.H., Wahl, H., Haas, C.R., Kunze, H., Brandenburg, W., ...
The energy loss of heavy ions with an energy of 1.4 MeV/u in a hydrogen plasma has been measured. A 20 cm long z-pinch has been used as plasma target. Our data show a strong enhancement of the...
Energy loss of heavy ions in a hydrogen discharge plasma (1989)
Weyrich, K., Hoffmann, D.H.H., Jacoby, J., Wahl, H., Deutsch, C., Noll, R., ...
Energy loss of heavy ions in a hydrogen discharge plasma (1989)
Weyrich, K., Hoffmann, D.H.H., Jacoby, J., Wahl, H., Deutsch, C., Noll, R., ...
Der Plasmafokus. Eine neue Röntgenquelle für die Röntgenmikroskopie und Röntgenlithographie (1989)
Eberle, J., Holz, C., Neff, W., Richter, F., Noll, R., Lebert, R.
Plasmaröntgenquellen kleiner Abmessungen und hoher Brillanz im Spektralbereich von ca. 0,7 nm bis 4nm werden in der Röntgenlithographie eingesetzt. Mit modifizierten Plasmafokusanlagen lassen sich...
A plasma target for the investigation of the interaction of fast heavy ions with hot matter (1989)
Noll, R., Kunze, H., Haas, C.R.
The experimental investigation of the interaction of fast heavy-ion beams with hot matter is of fundamental interest for atomic physics and plasma physics. In a beam-plasma experiment, an...
Monochromatic x-ray emission of a fully ionized hydrogen plasma. (1989)
Neff, W., Noll, R., Haas, C.R., Weikl, B., Herziger, G., Lebert, R., ...
Subnanosecond emission phenomena have been studied at a modified 1 kJ Mather type plasma focus device. High energy particle beams, nonthermal infrared and microwave emission as well as anisotropic...
Laser diagnostics of the plasma target. (1989)
Kunze, H., Noll, R., Haas, C.R.
A z-pinch device is used as a plasma target for the heavy on beam of the UNILAC stripper region at the GSI (1). The aim is the investigation of the interaction of fast heavy ions with hot matter in...
First diagnostics of the z-pinch plasma target (1989)
Noll, R., Kunze, H., Haas, C.R.
The aim of the plasma target project is the investigation of the interaction of fast heavy ion beams with hot matter (1). For this beam-plasma experiment a plasma target was developed, that can be...
Energy loss of heavy ions in a hydrogen discharge plasma (1989)
Noll, R., Kunze, H., Haas, C.R., Weyrich, K., Hoffmann, D.H.H., Jacoby, J., ...
The energy loss heavy ions in a plasma environment was measured by a time-of-flight method (TOF). It was possible to determine the energy loss for six different ion sepcies, high 40 Ca, high 74 Ge,...
DEVELOPMENT AND DIAGNOSTICS OF A Z-PINCH PLASMA TARGET (1988)
For the investigation of the interaction of fast heavy ion beams with hot matter, a beam-plasma experiment is set-up in the stripper region of the UNILAC at the GSI, Darmstadt. The target...
Experimental observation of enhanced stopping of heavy ions in a hydrogen plasma (1988)
Hoffmann, D.H.H., Weyrich, K., Wahl, H., Peter, T., Meyer-Ter-Vehn, J., Jacoby, J., ...
Experimental observation of enhanced stopping of heavy ions in a hydrogen plasma (1988)
Hoffmann, D.H.H., Weyrich, K., Wahl, H., Peter, T., Meyer-Ter-Vehn, J., Jacoby, J., ...
Z-pinch system for beam-plasma experiments (1988)
Noll, R., Haas, C.R., Kunze, H.
A z-pinch system was developed which is suited for beam-plasma experiments. The beam can be a particle beam of fast heavy ions injected into the plasma to study the interaction processes of the...
Experimental observation of enhanced stopping of heavy ions in a hydrogen plasma (1988)
Hoffmann, D.H.H., Weyrich, K., Wahl, H., Peter, T., Meyer-ter-Vehn, J., Jacoby, J., ...
Enhanced energy loss of 333 MeV(238) U ions in a hydrogen discharge plasma with a high degree of ionization has been observed. The ion stopping in a plasma environment exceeds the stopping in cold...
Development and diagnostics of a z-pinch plasma target (1988)
Noll, R., Haas, C.R., Kunze, H.
For the investigation of the interaction of fast heavy ion beams with hot matter, a beam-plasma experiment is set-up in the stripper region of the UNILAC at the GSI, Darmstadt. The target...
DEVELOPMENT AND DIAGNOSTICS OF A Z-PINCH PLASMA TARGET (1988)
For the investigation of the interaction of fast heavy ion beams with hot matter, a beam-plasma experiment is set-up in the stripper region of the UNILAC at the GSI, Darmstadt. The target...
DEVELOPMENT AND DIAGNOSTICS OF A Z-PINCH PLASMA TARGET (1988)
For the investigation of the interaction of fast heavy ion beams with hot matter, a beam-plasma experiment is set-up in the stripper region of the UNILAC at the GSI, Darmstadt. The target...
DEVELOPMENT AND DIAGNOSTICS OF A Z-PINCH PLASMA TARGET (1988)
For the investigation of the interaction of fast heavy ion beams with hot matter, a beam-plasma experiment is set-up in the stripper region of the UNILAC at the GSI, Darmstadt. The target...
DEVELOPMENT AND DIAGNOSTICS OF A Z-PINCH PLASMA TARGET (1988)
For the investigation of the interaction of fast heavy ion beams with hot matter, a beam-plasma experiment is set-up in the stripper region of the UNILAC at the GSI, Darmstadt. The target...
Z-pinch experiment to study beam - plasma interactions (1986)
Hoffmann, D., Wahl, H., Weyrich, K., Hoffmann, I., Noll, R., Weikl, B., ...
Beam plasma interaction experiments at GSI (1986)
Hoffmann, D., Jacoby, J., Wahl, H., Weyrich, K., Noll, R., Haas, C.R., ...