FR2676542B1 - Cellule piezometrique et son procede de scellement. - Google Patents

Cellule piezometrique et son procede de scellement.

Info

Publication number
FR2676542B1
FR2676542B1 FR9106125A FR9106125A FR2676542B1 FR 2676542 B1 FR2676542 B1 FR 2676542B1 FR 9106125 A FR9106125 A FR 9106125A FR 9106125 A FR9106125 A FR 9106125A FR 2676542 B1 FR2676542 B1 FR 2676542B1
Authority
FR
France
Prior art keywords
piezometric
cell
sealing method
sealing
piezometric cell
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 - Fee Related
Application number
FR9106125A
Other languages
English (en)
Other versions
FR2676542A1 (fr
Inventor
Chambaron Bernard
Lamesch Jos
Narche Michel
Ritter Jean-Marc
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.)
Otic Fischer & Porter
Original Assignee
Otic Fischer & Porter
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 Otic Fischer & Porter filed Critical Otic Fischer & Porter
Priority to FR9106125A priority Critical patent/FR2676542B1/fr
Publication of FR2676542A1 publication Critical patent/FR2676542A1/fr
Application granted granted Critical
Publication of FR2676542B1 publication Critical patent/FR2676542B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/0072—Transmitting or indicating the displacement of flexible diaphragms using variations in capacitance
    • G01L9/0075—Transmitting or indicating the displacement of flexible diaphragms using variations in capacitance using a ceramic diaphragm, e.g. alumina, fused quartz, glass
    • 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
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/0042—Constructional details associated with semiconductive diaphragm sensors, e.g. etching, or constructional details of non-semiconductive diaphragms
    • G01L9/0048—Details about the mounting of the diaphragm to its support or about the diaphragm edges, e.g. notches, round shapes for stress relief

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Measuring Fluid Pressure (AREA)
FR9106125A 1991-05-17 1991-05-17 Cellule piezometrique et son procede de scellement. Expired - Fee Related FR2676542B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9106125A FR2676542B1 (fr) 1991-05-17 1991-05-17 Cellule piezometrique et son procede de scellement.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9106125A FR2676542B1 (fr) 1991-05-17 1991-05-17 Cellule piezometrique et son procede de scellement.

Publications (2)

Publication Number Publication Date
FR2676542A1 FR2676542A1 (fr) 1992-11-20
FR2676542B1 true FR2676542B1 (fr) 1993-09-17

Family

ID=9412970

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9106125A Expired - Fee Related FR2676542B1 (fr) 1991-05-17 1991-05-17 Cellule piezometrique et son procede de scellement.

Country Status (1)

Country Link
FR (1) FR2676542B1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4064550A (en) * 1976-03-22 1977-12-20 Hewlett-Packard Company High fidelity pressure transducer
DE3137219A1 (de) * 1981-09-18 1983-04-07 Robert Bosch Gmbh, 7000 Stuttgart Kapazitiver drucksensor und verfahren zu seiner herstellung
US4490773A (en) * 1983-12-19 1984-12-25 United Technologies Corporation Capacitive pressure transducer
US4972717A (en) * 1989-09-18 1990-11-27 Texas Instruments Incorporated Pressure transducer apparatus and method for making same

Also Published As

Publication number Publication date
FR2676542A1 (fr) 1992-11-20

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Legal Events

Date Code Title Description
ST Notification of lapse