FR2381995A1 - Debitmetre thermique - Google Patents

Debitmetre thermique

Info

Publication number
FR2381995A1
FR2381995A1 FR7705844A FR7705844A FR2381995A1 FR 2381995 A1 FR2381995 A1 FR 2381995A1 FR 7705844 A FR7705844 A FR 7705844A FR 7705844 A FR7705844 A FR 7705844A FR 2381995 A1 FR2381995 A1 FR 2381995A1
Authority
FR
France
Prior art keywords
fluid
power required
temperature gradient
maintain temperature
flowmeter
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.)
Granted
Application number
FR7705844A
Other languages
English (en)
Other versions
FR2381995B3 (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.)
TDY Industries LLC
Original Assignee
Teledyne Industries Inc
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 Teledyne Industries Inc filed Critical Teledyne Industries Inc
Priority to DE2708564A priority Critical patent/DE2708564C3/de
Priority to FR7705844A priority patent/FR2381995A1/fr
Priority to GB7501/77A priority patent/GB1580624A/en
Publication of FR2381995A1 publication Critical patent/FR2381995A1/fr
Application granted granted Critical
Publication of FR2381995B3 publication Critical patent/FR2381995B3/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/68—Measuring 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
    • G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
    • G01F1/688—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow using a particular type of heating, cooling or sensing element
    • G01F1/6888—Thermoelectric elements, e.g. thermocouples, thermopiles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/68—Measuring 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
    • G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
    • G01F1/6847—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow where sensing or heating elements are not disturbing the fluid flow, e.g. elements mounted outside the flow duct

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

Débitmètre thermique à basse température. Il comprend un conduit 10 dont un premier tronçon 10b est chauffé par un transformateur toroïdal 16, et dont un second tronçon 10a n'est pas chauffé. Le débitmètre selon l'invention fonctionne en mode à température constante, de manière à produire deux signaux dont l'un est proportionnel à la différence entre les températures du fluide en deux points, et l'autre proportionnel à l'énergie nécessaire au maintien de cette différence de température à une valeur constante. Cette énergie constitue une mesure du débit de fluide et de sa capacité calorifique Domaine d'application : débitmètres thermiques.
FR7705844A 1977-02-28 1977-02-28 Debitmetre thermique Granted FR2381995A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE2708564A DE2708564C3 (de) 1977-02-28 1977-02-28 Thermischer Durchflußmesser
FR7705844A FR2381995A1 (fr) 1977-02-28 1977-02-28 Debitmetre thermique
GB7501/77A GB1580624A (en) 1977-02-28 1977-03-22 Fluid flowmeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7705844A FR2381995A1 (fr) 1977-02-28 1977-02-28 Debitmetre thermique

Publications (2)

Publication Number Publication Date
FR2381995A1 true FR2381995A1 (fr) 1978-09-22
FR2381995B3 FR2381995B3 (fr) 1980-02-01

Family

ID=9187338

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7705844A Granted FR2381995A1 (fr) 1977-02-28 1977-02-28 Debitmetre thermique

Country Status (1)

Country Link
FR (1) FR2381995A1 (fr)

Also Published As

Publication number Publication date
FR2381995B3 (fr) 1980-02-01

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