ES2121752T3 - Metodo y aparato electroscopicos de estados transitorios para el analisis de metal fundido, durante el procesado. - Google Patents

Metodo y aparato electroscopicos de estados transitorios para el analisis de metal fundido, durante el procesado.

Info

Publication number
ES2121752T3
ES2121752T3 ES90907995T ES90907995T ES2121752T3 ES 2121752 T3 ES2121752 T3 ES 2121752T3 ES 90907995 T ES90907995 T ES 90907995T ES 90907995 T ES90907995 T ES 90907995T ES 2121752 T3 ES2121752 T3 ES 2121752T3
Authority
ES
Spain
Prior art keywords
molten metal
plasma plume
spectroscopic
pulsed laser
plasma
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES90907995T
Other languages
English (en)
Inventor
Yong W Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lehigh University
Original Assignee
Lehigh University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lehigh University filed Critical Lehigh University
Application granted granted Critical
Publication of ES2121752T3 publication Critical patent/ES2121752T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/30—Measuring the intensity of spectral lines directly on the spectrum itself
    • G01J3/36—Investigating two or more bands of a spectrum by separate detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/12—Generating the spectrum; Monochromators
    • G01J3/18—Generating the spectrum; Monochromators using diffraction elements, e.g. grating
    • G01J3/1809—Echelle gratings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
    • G01J3/0208—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using focussing or collimating elements, e.g. lenses or mirrors; performing aberration correction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
    • G01J3/021—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using plane or convex mirrors, parallel phase plates, or particular reflectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/0286—Constructional arrangements for compensating for fluctuations caused by temperature, humidity or pressure, or using cooling or temperature stabilization of parts of the device; Controlling the atmosphere inside a spectrometer, e.g. vacuum
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/0291—Housings; Spectrometer accessories; Spatial arrangement of elements, e.g. folded path arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/04—Slit arrangements slit adjustment
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/2889—Rapid scan spectrometers; Time resolved spectrometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
    • G01N21/718—Laser microanalysis, i.e. with formation of sample plasma
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/12—Generating the spectrum; Monochromators
    • G01J3/18—Generating the spectrum; Monochromators using diffraction elements, e.g. grating
    • G01J2003/1828—Generating the spectrum; Monochromators using diffraction elements, e.g. grating with order sorter or prefilter
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/66—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence
    • G01N21/69—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence specially adapted for fluids, e.g. molten metal
    • G01N2021/695—Molten metals

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Optics & Photonics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Plasma & Fusion (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Investigating And Analyzing Materials By Characteristic Methods (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

UN METODO Y APARATO PARA EL ANALISIS ESPECTROSCOPICO TRANSITORIO EN PROCESO DE METAL FUNDIDO, EN DONDE SE SUMERGE UNA SONDA (10) QUE CONTIENE UN LASER DE POTENCIA PULSADA (14) QUE PRODUCE UN RAYO LASER PULSADO QUE TIENE UNA FORMA DE ONDA DEL IMPULSO TRIANGULAR EN EL METAL FUNDIDO E IRRADIA UNA CANTIDAD REPRESENTATIVA DEL METAL FUNDIDO. EL RAYO LASER PULSADO VAPORIZA UNA PARTE DEL METAL FUNDIDO PARA PRODUCIR UNA PLUMA DE PLASMA QUE TIENE UNA COMPOSICION ELEMENTAL REPRESENTATIVA DE LA COMPOSICION ELEMENTAL DEL METAL FUNDIDO. ANTES DE QUE LA PLUMA DE PLASMA ALCANCE EL EQUILIBRIO TERMICO POCO DESPUES DE QUE TERMINE EL IMPULSO LASERICO, UN DETECTOR ESPECTROSCOPICO (24) QUE SE ENCUENTRA DENTRO DE LA SONDA (10) DETECTA LAS INVERSIONES DE RAYAS ESPECTRALES EN UNA PRIMERA VENTANA DE CORTA DURACION. DESPUES DE ESTO, CUANDO EL PLASMA DE PERSISTENCIA SE ENCUENTRA EN EQUILIBRIO TERMICO, UN SEGUNDO DETECTOR ESPECTROSCOPICO (242) QUE TAMBIEN SE ENCUENTRA EN LA SONDA (10) LLEVA A CABO UNA SEGUNDA MEDIDA ESPECTROSCOPICA DE CORTA DURACION. UN BUSCADOR DE DISTANCIAS (22) MIDE Y CONTROLA LA DISTANCIA ENTRE LA SUPERFICIE DE METAL FUNDIDO Y EL LASER PULSADO (14).
ES90907995T 1989-04-21 1990-04-20 Metodo y aparato electroscopicos de estados transitorios para el analisis de metal fundido, durante el procesado. Expired - Lifetime ES2121752T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07341748 US4986658B1 (en) 1989-04-21 1989-04-21 Transient spectroscopic method and apparatus for in-process analysis of molten metal

Publications (1)

Publication Number Publication Date
ES2121752T3 true ES2121752T3 (es) 1998-12-16

Family

ID=23338867

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90907995T Expired - Lifetime ES2121752T3 (es) 1989-04-21 1990-04-20 Metodo y aparato electroscopicos de estados transitorios para el analisis de metal fundido, durante el procesado.

Country Status (16)

Country Link
US (1) US4986658B1 (es)
EP (1) EP0469083B1 (es)
JP (1) JPH04507136A (es)
KR (1) KR960012784B1 (es)
AT (1) ATE170627T1 (es)
AU (1) AU637795B2 (es)
BR (1) BR9007307A (es)
CA (1) CA2051125C (es)
CZ (1) CZ285316B6 (es)
DE (1) DE69032620T2 (es)
ES (1) ES2121752T3 (es)
FI (1) FI914935A0 (es)
HU (1) HUT61842A (es)
PL (1) PL164530B1 (es)
WO (1) WO1990013008A1 (es)
ZA (1) ZA902481B (es)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993007453A1 (en) * 1991-10-03 1993-04-15 Iowa State University Research Foundation, Inc. Mobile inductively coupled plasma system
NO177875C (no) * 1993-07-26 1995-12-06 Elkem As Fremgangsmåte for direkte kjemisk analyse av smeltet metall
DE4443407C2 (de) * 1993-12-08 1999-07-22 Fraunhofer Ges Forschung Vorrichtung zur qualitativen und/oder quantitativen chemischen Analyse einer Substanz, insbesondere zur Analyse einer Metallschmelze
DE4415381A1 (de) * 1994-05-02 1995-11-09 Nis Ingenieurgesellschaft Mbh Lasergestütztes Verfahren zur Bestimmung von Edelmetallkonzentrationen in Metallen
US5526110A (en) * 1994-07-08 1996-06-11 Iowa State University Research Foundation, Inc. In situ calibration of inductively coupled plasma-atomic emission and mass spectroscopy
US5567625A (en) * 1994-10-19 1996-10-22 International Business Machines Corporation Apparatus and method for real-time spectral deconvolution of chemical mixtures
US5586049A (en) * 1994-10-19 1996-12-17 International Business Machines Corporation Apparatus and method for generating profiles of constituents of chemical mixtures
US5585919A (en) * 1994-10-19 1996-12-17 International Business Machines Corporation Error minimization apparatus and method for real-time spectral deconvolution of chemical mixtures
US5751416A (en) * 1996-08-29 1998-05-12 Mississippi State University Analytical method using laser-induced breakdown spectroscopy
US6061641A (en) * 1996-10-25 2000-05-09 Hahn; David W. Method for improving instrument response
US5781289A (en) * 1996-11-05 1998-07-14 Sabsabi; Mohamad Method and apparatus for rapid in situ analysis of preselected components of homogeneous solid compositions, especially pharmaceutical compositions
ES2121702B1 (es) * 1997-02-17 1999-06-16 Univ Malaga Sensor para monitorizacion on-line y remota de procesos automatizados de soldadura con laser.
DE19753348A1 (de) * 1997-12-03 1999-06-10 Spectro Analytical Instr Gmbh Vorrichtung zur Erfassung und Quantifizierung von Element-Konzentrationsverteilungen in Feststoffen
AU2894399A (en) * 1998-03-03 1999-09-20 Baker Hughes Incorporated Improved laser spectral analyzer with sample location detector
US6008896A (en) * 1998-07-01 1999-12-28 National Research Council Of Canada Method and apparatus for spectroscopic analysis of heterogeneous materials
US5946089A (en) * 1998-07-13 1999-08-31 Jordan Valley Applied Radiation Ltd. Plasma spectrometer with shutter assembly
AUPP573098A0 (en) * 1998-09-04 1998-10-01 Generation Technology Research Pty Ltd Apparatus and method for analyzing material
US6313917B1 (en) 1999-07-02 2001-11-06 Ncr Corporation Produce data collector and produce recognition system
AT409553B (de) * 2000-09-28 2002-09-25 Voest Alpine Ind Anlagen Vorrichtung zur chemischen analyse von materialproben sowie metallurgisches gefäss hierfür
US6741345B2 (en) * 2001-02-08 2004-05-25 National Research Council Of Canada Method and apparatus for in-process liquid analysis by laser induced plasma spectroscopy
DE10155384B4 (de) * 2001-11-10 2014-12-31 Sms Siemag Aktiengesellschaft Online Qualitätskontrolle von Stranggieß-Produkten mittels Laseranalyse
US6784429B2 (en) * 2002-04-19 2004-08-31 Energy Research Company Apparatus and method for in situ, real time measurements of properties of liquids
US6909505B2 (en) 2002-06-24 2005-06-21 National Research Council Of Canada Method and apparatus for molten material analysis by laser induced breakdown spectroscopy
US20060006648A1 (en) * 2003-03-06 2006-01-12 Grimmett Harold M Tubular goods with threaded integral joint connections
US20070228729A1 (en) * 2003-03-06 2007-10-04 Grimmett Harold M Tubular goods with threaded integral joint connections
US7113277B2 (en) * 2003-05-14 2006-09-26 Lockheed Martin Corporation System and method of aerosolized agent capture and detection
US7169239B2 (en) * 2003-05-16 2007-01-30 Lone Star Steel Company, L.P. Solid expandable tubular members formed from very low carbon steel and method
KR101030103B1 (ko) * 2003-12-17 2011-04-20 헤라우스 일렉트로-나이트 인터내셔날 엔. 브이. 용융 재료의 분석 방법, 장치 및 액침 센서
BE1015940A3 (fr) * 2004-02-13 2005-12-06 Heraeus Electro Nite Int Procede d'analyse par spectrometrie d'emission optique d'une substance en fusion.
DE10359447B4 (de) * 2003-12-17 2006-03-30 Heraeus Electro-Nite International N.V. Eintauchsensor
AT413244B (de) * 2004-03-30 2005-12-15 Innsitec Laser Technologies Gm Verfahren zur ermittlung und korrektur bzw. regelung des verlaufs eines laserlichtstrahls in einem hohlkörper
JP2006266792A (ja) * 2005-03-23 2006-10-05 Jfe Steel Kk 溶融金属の発光分光分析装置
US7530265B2 (en) * 2005-09-26 2009-05-12 Baker Hughes Incorporated Method and apparatus for elemental analysis of a fluid downhole
DE102006047765B3 (de) * 2006-10-06 2007-12-20 Heraeus Electro-Nite International N.V. Eintauchlanze für die Analyse von Schmelzen und Flüssigkeiten
US7394537B1 (en) * 2006-12-22 2008-07-01 Oxford Instruments Analytical Oy Practical laser induced breakdown spectroscopy unit
CA2679029A1 (en) * 2007-02-23 2008-08-28 Thermo Niton Analyzers Llc Hand-held, self-contained optical emission spectroscopy (oes) analyzer
JP5111914B2 (ja) * 2007-03-26 2013-01-09 Ｎｕエコ・エンジニアリング株式会社 粒子密度測定プローブ及び粒子密度測定装置
JP2009210421A (ja) * 2008-03-04 2009-09-17 Sony Corp テラヘルツ分光装置
KR101107095B1 (ko) * 2010-07-30 2012-01-30 한국수력원자력 주식회사 고온 용융염 중의 우라늄농도 실시간 측정장치
DE102011014090B4 (de) * 2011-03-16 2013-04-18 Georgsmarienhütte Gmbh Verfahren zur Ermittlung eines Betriebs- und/oder Werkstoffparameters in einem Elektrolichtbogenofen
US8664589B2 (en) * 2011-12-29 2014-03-04 Electro Scientific Industries, Inc Spectroscopy data display systems and methods
JP6095901B2 (ja) * 2012-05-24 2017-03-15 株式会社Ihi 物質特定装置および物質特定方法
BE1020753A3 (fr) * 2012-06-14 2014-04-01 Centre Rech Metallurgique Dispositif de focalisation d'un faisceau laser par camera.
US20140268134A1 (en) * 2013-03-15 2014-09-18 Electro Scientific Industries, Inc. Laser sampling methods for reducing thermal effects
CN104297218B (zh) * 2013-07-15 2016-09-14 中国科学院沈阳自动化研究所 远距离冶金液态金属成分的原位、在线检测装置及方法
US10024802B2 (en) 2014-06-20 2018-07-17 National Research Council Of Canada Method for laser-induced breakdown spectroscopy and calibration
US10300551B2 (en) 2016-11-14 2019-05-28 Matthew Fagan Metal analyzing plasma CNC cutting machine and associated methods
RU2664485C1 (ru) * 2017-07-05 2018-08-17 Александр Николаевич Забродин Способ спектрального анализа химического состава расплавленных металлов и устройство для его осуществления
EP3441214B1 (en) * 2017-08-09 2022-09-28 CL Schutzrechtsverwaltungs GmbH Apparatus for additively manufacturing of three-dimensional objects
US11099129B2 (en) 2017-09-14 2021-08-24 Brown University Spatially resolved standoff trace chemical sensing using backwards transient absorption spectroscopy
US10753878B2 (en) 2017-09-20 2020-08-25 Worcester Polytechnic Institute Molten metal inclusion testing
DE102018222792B4 (de) * 2018-12-21 2021-12-02 Thyssenkrupp Ag Laserinduzierte Emissionsspektrometrie zur schnellen Gefügeuntersuchung
WO2023010215A1 (en) * 2021-08-05 2023-02-09 National Research Council Of Canada Refractory lance assembly and refractory lance tube

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2079561A5 (es) * 1970-02-05 1971-11-12 Siderurgie Fse Inst Rech
DD127021B1 (de) * 1976-04-29 1979-12-27 Joachim Mohr Vorrichtung fuer spektrochemische untersuchungen, insbesondere fuer die laser-mikrospektralanalyse
US4182574A (en) * 1976-05-27 1980-01-08 Jenoptik Jena G.M.B.H. Arrangement for carrying out laser spectral analysis
JPS56114746A (en) * 1980-02-14 1981-09-09 Kawasaki Steel Corp Direct analyzing method for molten metal with pulse laser light
JPS6042644A (ja) * 1983-08-17 1985-03-06 Kawasaki Steel Corp 精錬容器内溶湯の成分連続分析法
GB8403976D0 (en) * 1984-02-15 1984-03-21 British Steel Corp Analysis of materials
JPS6186636A (ja) * 1984-10-05 1986-05-02 Kawasaki Steel Corp 鋼のレ−ザ発光分光分析方法
EP0184590B1 (en) * 1984-12-12 1990-03-14 Kawasaki Steel Corporation Method of continuously analyzing fluidized body by laser
JPS61181947A (ja) * 1985-02-07 1986-08-14 Osaka Oxygen Ind Ltd 溶融金属のレ−ザ直接発光分光分析装置
JPS62188919A (ja) * 1985-10-09 1987-08-18 Okayama Univ レ−ザ多段励起直接発光分析方法及び装置

Also Published As

Publication number Publication date
ZA902481B (en) 1991-01-30
US4986658B1 (en) 1996-06-25
CZ285316B6 (cs) 1999-07-14
JPH04507136A (ja) 1992-12-10
US4986658A (en) 1991-01-22
CA2051125C (en) 1999-11-30
PL164530B1 (pl) 1994-08-31
HU903754D0 (en) 1992-02-28
FI914935A0 (fi) 1991-10-18
ATE170627T1 (de) 1998-09-15
HUT61842A (en) 1993-03-01
DE69032620D1 (de) 1998-10-08
DE69032620T2 (de) 1999-04-15
EP0469083B1 (en) 1998-09-02
KR920701799A (ko) 1992-08-12
AU5532290A (en) 1990-11-16
KR960012784B1 (ko) 1996-09-24
CA2051125A1 (en) 1990-10-22
AU637795B2 (en) 1993-06-10
EP0469083A1 (en) 1992-02-05
CS198190A3 (en) 1992-01-15
BR9007307A (pt) 1992-03-24
EP0469083A4 (en) 1992-06-03
WO1990013008A1 (en) 1990-11-01

Similar Documents

Publication Publication Date Title
US4986658B1 (en) Transient spectroscopic method and apparatus for in-process analysis of molten metal
Russo et al. Influence of wavelength on fractionation in laser ablation ICP-MSPresented at the 2000 Winter Conference on Plasma Spectrochemistry, Fort Lauderdale, FL, USA, January 10–15, 2000.
ES2017144A6 (es) Metodo y aparato para la deteccion de un gas mediante espectroscopia fotoacustica.
SE8401117D0 (sv) Bestemning av en blandnings sammansettning
JPS57178111A (en) Microwave sensor for checking level of molten metal in continuous casting method
US4313771A (en) Laser hardening of steel work pieces
GB1545933A (en) Method of ablating metal workpieces with laser radiation
JPS5454932A (en) Combination welding of tig and laser
JPS5417744A (en) Linear lighting method
Kanicky et al. Use of internal standardization to compensate for a wide range of absorbance in the analysis of glasses by UV laser ablation inductively coupled plasma atomic emission spectrometry
JPS5636180A (en) Gas laser capable of irradiating beam of stabilized frequency by pulse
FR2367117A1 (fr) Procede et appareil de traitement de surfaces metalliques de portee de composants mobiles l'un par rapport a l'autre
Zhongming et al. Transient spectroscopic method and apparatus for in-process analysis of molten metal
ATE288076T1 (de) Verfahren zum prüfen der eigenschaft einer beschichtung
NO161702C (no) Fremgangsm te foling av oksydasjonshastigheten oveflaten av en metallsmelte, samt bestemmelse av konsentrasjoner av smeltebestvirker oksydasjonshastigh eten.
JPS5499750A (en) Method and apparatus for tight seal laser welding of end part of nuclear fuel rod for reactor
Poueyo et al. Experimental study of the laser induced plasma in welding conditions with continuous high power CO2 lasers
JPS54102257A (en) Method and apparatus for laser welding
JPS5210757A (en) Measuring method of a jet solder wave
Aseev Temperature Evaluation During Heat Treatment of Metals by Long-Duration Optical Quantum Generator Pulses
Kravets et al. Increasing the efficiency of cutting aluminium alloys with a combined laser beam
JPS5735612A (en) Method for measuring temperature of object to be treated in heat treatment furnace
JPS523487A (en) Testing method and device of the bonding quality on the electric part of metal
Hansmann et al. Registration of melt flow during laser beam cutting
JPS644470A (en) Method for detecting endpoint of selective growth of thin metal film

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 469083

Country of ref document: ES