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 impuritiesInfo
- 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
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.
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)
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 |
-
1975
- 1975-01-03 FR FR7500098A patent/FR2296840A1/en active Granted
Cited By (4)
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 |