FR2029821A5 - Internal-reflection aerosol detector - Google Patents

Internal-reflection aerosol detector

Info

Publication number
FR2029821A5
FR2029821A5 FR6901499A FR6901499A FR2029821A5 FR 2029821 A5 FR2029821 A5 FR 2029821A5 FR 6901499 A FR6901499 A FR 6901499A FR 6901499 A FR6901499 A FR 6901499A FR 2029821 A5 FR2029821 A5 FR 2029821A5
Authority
FR
France
Prior art keywords
internal
reflection
aerosol detector
radiation
vapour
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
Application number
FR6901499A
Other languages
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Priority to FR6901499A priority Critical patent/FR2029821A5/en
Application granted granted Critical
Publication of FR2029821A5 publication Critical patent/FR2029821A5/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/55—Specular reflectivity
    • G01N21/552—Attenuated total reflection

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material 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)

Abstract

Surface on which samples are to be precipitated for detection by internal reflection spectroscopy of impurities of liquid aerosols and vapour in a gas, is coated with a finely divided inorganic powder, transparent to reflective radiation and having a refractive index lower than the main body and a particle size smaller than the wavelength of the radiation used.
FR6901499A 1969-01-27 1969-01-27 Internal-reflection aerosol detector Expired FR2029821A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6901499A FR2029821A5 (en) 1969-01-27 1969-01-27 Internal-reflection aerosol detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6901499A FR2029821A5 (en) 1969-01-27 1969-01-27 Internal-reflection aerosol detector

Publications (1)

Publication Number Publication Date
FR2029821A5 true FR2029821A5 (en) 1970-10-23

Family

ID=9028215

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6901499A Expired FR2029821A5 (en) 1969-01-27 1969-01-27 Internal-reflection aerosol detector

Country Status (1)

Country Link
FR (1) FR2029821A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512552A1 (en) * 1981-09-04 1983-03-11 Westinghouse Electric Corp FIBER OPTIC IMPURITY DETECTOR

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512552A1 (en) * 1981-09-04 1983-03-11 Westinghouse Electric Corp FIBER OPTIC IMPURITY DETECTOR

Similar Documents

Publication Publication Date Title
GB1087458A (en) Tubular wave guide for the transmission of light of infra-red waves
GB1320579A (en) Smoke detector
GB1208031A (en) Improvements in or relating to fluorimeters for providing a continuous measurement of the fluorescence of a fluid stream
GB1264326A (en)
FR2029821A5 (en) Internal-reflection aerosol detector
CN209624375U (en) A kind of gas sensor with spiral cavity
GB1346348A (en) Watch or clock cover glass including a liquid crystal display device
Plummer et al. Mars: Is the surface colored by carbon suboxide?
JPS52140384A (en) Flaw detector
GB1309144A (en) Method for measuring and or detecting changes in the diameter of suspended particles
OVINOVA et al. Scattering and absorption of light in the atmosphere(Russian book- Scattering and absorption of light in the atmosphere.)
GB957422A (en) Improvements in or relating to the testing of fluid properties such as density or physical composition
JPS646842A (en) Detecting device
JPS55129730A (en) Measurement unit for fluid refractive index
JPS5719626A (en) Body sensor with variable angle of field
GB1290521A (en)
JPS5618731A (en) Pyrheliometer employing solar battery
GB974480A (en) Improvements in illuminated display devices
JPS5267384A (en) Reflectance and transmissivity meter
GB886051A (en) Infra-red filter
Rvachev et al. SCATTERING OF NATURAL AND POLARIZED RADIATION BY PHOTOMETRIC STANDARTS AND LEAVES OF PLANTS
Minin An Optical Model for the Atmosphere of Mars.
JPS57186157A (en) Detector for sticking matter on windshield glass
ES244151A1 (en) Improvements in the manufacture of reflective particles (Machine-translation by Google Translate, not legally binding)
HOEIJER Atmospheric attenuation of a light beam due to scattering and absorption(influence of aerosols and hydrometeors)

Legal Events

Date Code Title Description
ST Notification of lapse