FR2392376A1 - Optical analyser for flowing transparent fluid - uses axial and annular mirrors with conical reflective surfaces - Google Patents

Optical analyser for flowing transparent fluid - uses axial and annular mirrors with conical reflective surfaces

Info

Publication number
FR2392376A1
FR2392376A1 FR7716095A FR7716095A FR2392376A1 FR 2392376 A1 FR2392376 A1 FR 2392376A1 FR 7716095 A FR7716095 A FR 7716095A FR 7716095 A FR7716095 A FR 7716095A FR 2392376 A1 FR2392376 A1 FR 2392376A1
Authority
FR
France
Prior art keywords
transparent fluid
reflective surfaces
conical reflective
optical analyser
mirror
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.)
Withdrawn
Application number
FR7716095A
Other languages
French (fr)
Inventor
Hemptinne Xavier-Alexandre De
La Vallee Poussin Francois De
Rubinat Jean-Marie De
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.)
Umicore NV SA
Original Assignee
ACEC SA
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 ACEC SA filed Critical ACEC SA
Priority to FR7716095A priority Critical patent/FR2392376A1/en
Publication of FR2392376A1 publication Critical patent/FR2392376A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/0007—Applications not otherwise provided for
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Plasma & Fusion (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Optical Measuring Cells (AREA)

Abstract

The optical analyser for transparent fluid, e.g. gases at very low temp. or corrosive gases or liquids, directs a light parallel beam into the fluid flow and detects the reflected light. It comprises an open tube with at least one axial mirror (6) and one annular mirror (3) aligned with the tube axis, each having a conical reflective surface. Pref. at least one of the mirrors (3) has a concave curvature and the parallel light rays are reflected from the axial mirror (6) radially outwards onto the annular mirror (3), which focusses them to a point (1) within the fluid flow.
FR7716095A 1977-05-26 1977-05-26 Optical analyser for flowing transparent fluid - uses axial and annular mirrors with conical reflective surfaces Withdrawn FR2392376A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7716095A FR2392376A1 (en) 1977-05-26 1977-05-26 Optical analyser for flowing transparent fluid - uses axial and annular mirrors with conical reflective surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7716095A FR2392376A1 (en) 1977-05-26 1977-05-26 Optical analyser for flowing transparent fluid - uses axial and annular mirrors with conical reflective surfaces

Publications (1)

Publication Number Publication Date
FR2392376A1 true FR2392376A1 (en) 1978-12-22

Family

ID=9191302

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7716095A Withdrawn FR2392376A1 (en) 1977-05-26 1977-05-26 Optical analyser for flowing transparent fluid - uses axial and annular mirrors with conical reflective surfaces

Country Status (1)

Country Link
FR (1) FR2392376A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003016979A1 (en) * 2001-08-20 2003-02-27 Thermo Electron Oy Conduction and correction of a light beam

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003016979A1 (en) * 2001-08-20 2003-02-27 Thermo Electron Oy Conduction and correction of a light beam

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Legal Events

Date Code Title Description
ST Notification of lapse