FR2296840A1 - Ionic flowmeter for measurement of gas flows - has electric ionising field compensating for effects of impurities - Google Patents

Ionic flowmeter for measurement of gas flows - has electric ionising field compensating for effects of impurities

Info

Publication number
FR2296840A1
FR2296840A1 FR7500098A FR7500098A FR2296840A1 FR 2296840 A1 FR2296840 A1 FR 2296840A1 FR 7500098 A FR7500098 A FR 7500098A FR 7500098 A FR7500098 A FR 7500098A FR 2296840 A1 FR2296840 A1 FR 2296840A1
Authority
FR
France
Prior art keywords
flowmeter
ionic
impurities
measurement
effects
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
FR7500098A
Other languages
French (fr)
Other versions
FR2296840B3 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7500098A priority Critical patent/FR2296840A1/en
Publication of FR2296840A1 publication Critical patent/FR2296840A1/en
Application granted granted Critical
Publication of FR2296840B3 publication Critical patent/FR2296840B3/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/005—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by using a jet directed into the fluid
    • G01P5/006—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by using a jet directed into the fluid the jet used is composed of ionised or radioactive particles
    • 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
    • G01F1/56—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 electric or magnetic effects
    • G01F1/64—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 electric or magnetic effects by measuring electrical currents passing through the fluid flow; measuring electrical potential generated by the fluid flow, e.g. by electrochemical, contact or friction effects

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Measuring Volume Flow (AREA)

Abstract

In the ionic flowmeter the ion jet path is modified as it crosses the gas flow. The measuring cylinder (1) comprises ceramic casings (2, 3) and is mounted coaxially in a pipe such that the ratios of flows is known. The casing inner surface has a metallic coating (4) forming collector electrodes. The casings are joined by brazing isolating rings (5, 6) wit electrical contacts (7, 9) permitting contact with the coating. A fine gauge wire (15) powered by a high voltage (23) provides an ion source and the difference between the resultant currents (I1, I2) at the collectors is determined by an amplifier (25). Power supply control (24) corrects field for impurities.
FR7500098A 1975-01-03 1975-01-03 Ionic flowmeter for measurement of gas flows - has electric ionising field compensating for effects of impurities Granted FR2296840A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7500098A FR2296840A1 (en) 1975-01-03 1975-01-03 Ionic flowmeter for measurement of gas flows - has electric ionising field compensating for effects of impurities

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7500098A FR2296840A1 (en) 1975-01-03 1975-01-03 Ionic flowmeter for measurement of gas flows - has electric ionising field compensating for effects of impurities

Publications (2)

Publication Number Publication Date
FR2296840A1 true FR2296840A1 (en) 1976-07-30
FR2296840B3 FR2296840B3 (en) 1977-09-30

Family

ID=9149387

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7500098A Granted FR2296840A1 (en) 1975-01-03 1975-01-03 Ionic flowmeter for measurement of gas flows - has electric ionising field compensating for effects of impurities

Country Status (1)

Country Link
FR (1) FR2296840A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2449272A1 (en) * 1979-02-14 1980-09-12 Lucas Industries Ltd APPARATUS FOR MEASURING THE MASS FLOW OF A FLUID
US4939466A (en) * 1989-04-10 1990-07-03 Board Of Control Of Michigan Technological University Method and apparatus for sensing the regeneration of a diesel engine particulate trap
CN106872725A (en) * 2017-01-16 2017-06-20 北京航空航天大学 A kind of flight probe for pulsed plasma thruster measurement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2449272A1 (en) * 1979-02-14 1980-09-12 Lucas Industries Ltd APPARATUS FOR MEASURING THE MASS FLOW OF A FLUID
US4939466A (en) * 1989-04-10 1990-07-03 Board Of Control Of Michigan Technological University Method and apparatus for sensing the regeneration of a diesel engine particulate trap
CN106872725A (en) * 2017-01-16 2017-06-20 北京航空航天大学 A kind of flight probe for pulsed plasma thruster measurement
CN106872725B (en) * 2017-01-16 2019-07-05 北京航空航天大学 A kind of flight probe for pulsed plasma thruster measurement

Also Published As

Publication number Publication date
FR2296840B3 (en) 1977-09-30

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse