FR1545357A - Dispositif pour mesurer des débits de gaz faibles - Google Patents

Dispositif pour mesurer des débits de gaz faibles

Info

Publication number
FR1545357A
FR1545357A FR129760A FR129760A FR1545357A FR 1545357 A FR1545357 A FR 1545357A FR 129760 A FR129760 A FR 129760A FR 129760 A FR129760 A FR 129760A FR 1545357 A FR1545357 A FR 1545357A
Authority
FR
France
Prior art keywords
gas flow
flow rates
low gas
measuring low
measuring
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
FR129760A
Other languages
English (en)
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to FR129760A priority Critical patent/FR1545357A/fr
Application granted granted Critical
Publication of FR1545357A publication Critical patent/FR1545357A/fr
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/37Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using pneumatic detection
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/68Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/68Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
    • G01F1/684Structural arrangements; Mounting of elements, e.g. in relation to fluid flow

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
FR129760A 1966-11-30 1967-11-27 Dispositif pour mesurer des débits de gaz faibles Expired FR1545357A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR129760A FR1545357A (fr) 1966-11-30 1967-11-27 Dispositif pour mesurer des débits de gaz faibles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DES0107186 1966-11-30
FR129760A FR1545357A (fr) 1966-11-30 1967-11-27 Dispositif pour mesurer des débits de gaz faibles

Publications (1)

Publication Number Publication Date
FR1545357A true FR1545357A (fr) 1968-11-08

Family

ID=25998687

Family Applications (1)

Application Number Title Priority Date Filing Date
FR129760A Expired FR1545357A (fr) 1966-11-30 1967-11-27 Dispositif pour mesurer des débits de gaz faibles

Country Status (1)

Country Link
FR (1) FR1545357A (fr)

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