FR2444936A1 - Structure de detecteur de pression a ondes acoustiques superficielles - Google Patents
Structure de detecteur de pression a ondes acoustiques superficiellesInfo
- Publication number
- FR2444936A1 FR2444936A1 FR7931570A FR7931570A FR2444936A1 FR 2444936 A1 FR2444936 A1 FR 2444936A1 FR 7931570 A FR7931570 A FR 7931570A FR 7931570 A FR7931570 A FR 7931570A FR 2444936 A1 FR2444936 A1 FR 2444936A1
- Authority
- FR
- France
- Prior art keywords
- wave pressure
- pressure sensor
- sensor structure
- acoustic wave
- surface acoustic
- 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
- 238000010897 surface acoustic wave method Methods 0.000 abstract 3
- 239000012530 fluid Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 238000005382 thermal cycling Methods 0.000 abstract 1
- 230000008646 thermal stress Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
- G01L9/0008—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations
- G01L9/0022—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a piezoelectric element
- G01L9/0025—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a piezoelectric element with acoustic surface waves
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US97254278A | 1978-12-22 | 1978-12-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2444936A1 true FR2444936A1 (fr) | 1980-07-18 |
FR2444936B1 FR2444936B1 (enrdf_load_stackoverflow) | 1982-10-08 |
Family
ID=25519783
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7931570A Granted FR2444936A1 (fr) | 1978-12-22 | 1979-12-24 | Structure de detecteur de pression a ondes acoustiques superficielles |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS5598323A (enrdf_load_stackoverflow) |
AU (1) | AU524762B2 (enrdf_load_stackoverflow) |
CA (1) | CA1126975A (enrdf_load_stackoverflow) |
DE (1) | DE2951469A1 (enrdf_load_stackoverflow) |
FR (1) | FR2444936A1 (enrdf_load_stackoverflow) |
GB (1) | GB2037988B (enrdf_load_stackoverflow) |
IT (1) | IT1125925B (enrdf_load_stackoverflow) |
SE (1) | SE7910311L (enrdf_load_stackoverflow) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0329019D0 (en) * | 2003-12-15 | 2004-01-14 | Imp College Innovations Ltd | Acoustic wave devices |
USD512637S1 (en) * | 2004-04-12 | 2005-12-13 | The Procter & Gamble Company | Bottle |
JP4983176B2 (ja) * | 2006-09-14 | 2012-07-25 | セイコーエプソン株式会社 | 圧力センサの製造方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3697917A (en) * | 1971-08-02 | 1972-10-10 | Gen Electric | Semiconductor strain gage pressure transducer |
GB1389610A (en) * | 1972-10-11 | 1975-04-03 | Marconi Co Ltd | Surfacewave devices |
US4100811A (en) * | 1977-03-18 | 1978-07-18 | United Technologies Corporation | Differential surface acoustic wave transducer |
FR2444927A1 (fr) * | 1978-12-22 | 1980-07-18 | United Technologies Corp | Structure de detecteur de pression amelioree a ondes acoustiques superficielles |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52149992A (en) * | 1976-06-09 | 1977-12-13 | Hitachi Ltd | Pressure transducer |
JPS5365089A (en) * | 1976-11-24 | 1978-06-10 | Toshiba Corp | Semiconductor pressure transducer |
-
1979
- 1979-12-11 CA CA341,637A patent/CA1126975A/en not_active Expired
- 1979-12-13 AU AU53797/79A patent/AU524762B2/en not_active Ceased
- 1979-12-14 SE SE7910311A patent/SE7910311L/ not_active Application Discontinuation
- 1979-12-17 GB GB7943332A patent/GB2037988B/en not_active Expired
- 1979-12-18 IT IT28110/79A patent/IT1125925B/it active
- 1979-12-20 DE DE19792951469 patent/DE2951469A1/de not_active Withdrawn
- 1979-12-21 JP JP16746779A patent/JPS5598323A/ja active Granted
- 1979-12-24 FR FR7931570A patent/FR2444936A1/fr active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3697917A (en) * | 1971-08-02 | 1972-10-10 | Gen Electric | Semiconductor strain gage pressure transducer |
GB1389610A (en) * | 1972-10-11 | 1975-04-03 | Marconi Co Ltd | Surfacewave devices |
US4100811A (en) * | 1977-03-18 | 1978-07-18 | United Technologies Corporation | Differential surface acoustic wave transducer |
FR2444927A1 (fr) * | 1978-12-22 | 1980-07-18 | United Technologies Corp | Structure de detecteur de pression amelioree a ondes acoustiques superficielles |
Also Published As
Publication number | Publication date |
---|---|
GB2037988B (en) | 1983-03-02 |
GB2037988A (en) | 1980-07-16 |
JPS5598323A (en) | 1980-07-26 |
SE7910311L (sv) | 1980-06-23 |
IT1125925B (it) | 1986-05-14 |
JPS6345049B2 (enrdf_load_stackoverflow) | 1988-09-07 |
FR2444936B1 (enrdf_load_stackoverflow) | 1982-10-08 |
CA1126975A (en) | 1982-07-06 |
IT7928110A0 (it) | 1979-12-18 |
DE2951469A1 (de) | 1980-07-03 |
AU524762B2 (en) | 1982-09-30 |
AU5379779A (en) | 1980-06-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
RU94045996A (ru) | Датчик для определения давления рабочей текучей среды | |
CA2378059A1 (en) | Measurement of propagating acoustic waves in compliant pipes | |
FR2408824A1 (fr) | Capteur de valeurs de mesure de la pression interieure de conduites tubulaires | |
FR2411404B1 (enrdf_load_stackoverflow) | ||
FR2354548A1 (fr) | Procede et dispositif pour la mesure continue de pressions gazeuses | |
US4114557A (en) | Particle monitoring system | |
FR2444936A1 (fr) | Structure de detecteur de pression a ondes acoustiques superficielles | |
NO174309C (no) | Elektroakustisk transducer for anordning i et gassformig fluid, særlig for måling av strömningsghastigheten i et rör under eksplosjonsfarlige forhol | |
FR2356923A1 (fr) | Transducteur de pressions de fluide et instrument de mesure de pression l'utilisant | |
US4762004A (en) | Gas flowmeter and soap bubble generator | |
FR2385084A1 (fr) | Perfectionnement aux debitmetres a ultrasons | |
DE59102156D1 (de) | Druckmessumformer mit einem rotationssymmetrischen Drucksensor aus Keramik. | |
EP0266955A3 (en) | Diffusion measurement | |
NO20052435L (no) | Forseglet observasjonselement for betraktning av en strom av materiale | |
FR2386817A1 (fr) | Appareil numerique de mesure d'une difference de pressions | |
FR2434983A1 (fr) | Soupape a commande thermique | |
JPS554559A (en) | Pressure sensor using crystal vibrator | |
JPS54153684A (en) | Pressure transducer | |
FR2416484A1 (fr) | Dispositif pour engendrer des ondes acoustiques dans un fluide, par implosion | |
JPS5723817A (en) | Measuring device for gas flow | |
SU390487A1 (ru) | Глубоководный акустический экран | |
FR2368675A1 (fr) | Perfectionnements aux dispositifs cryostatiques photodetecteurs | |
EP4357738B1 (en) | Directional sensor for infrasound measurement, and corresponding infrasound emitter | |
DE3773983D1 (de) | Durchflussmessanordnung. | |
FR2561378A1 (fr) | Procede et dispositif utilisant ce procede pour detecter ou mesurer le debit d'un fluide a l'interieur d'une canalisation |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |