DE68910147D1 - Druckwandler mit Oszillator. - Google Patents

Druckwandler mit Oszillator.

Info

Publication number
DE68910147D1
DE68910147D1 DE89301555T DE68910147T DE68910147D1 DE 68910147 D1 DE68910147 D1 DE 68910147D1 DE 89301555 T DE89301555 T DE 89301555T DE 68910147 T DE68910147 T DE 68910147T DE 68910147 D1 DE68910147 D1 DE 68910147D1
Authority
DE
Germany
Prior art keywords
oscillator
pressure converter
converter
pressure
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
DE89301555T
Other languages
English (en)
Other versions
DE68910147T2 (de
Inventor
Fujio C O Seiko Electro Tamura
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.)
Seiko Electronic Components Ltd
Original Assignee
Seiko Electronic Components Ltd
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
Priority claimed from JP3598188A external-priority patent/JPH01210834A/ja
Priority claimed from JP14116188A external-priority patent/JPH01311241A/ja
Priority claimed from JP14412888A external-priority patent/JPH01312438A/ja
Application filed by Seiko Electronic Components Ltd filed Critical Seiko Electronic Components Ltd
Publication of DE68910147D1 publication Critical patent/DE68910147D1/de
Application granted granted Critical
Publication of DE68910147T2 publication Critical patent/DE68910147T2/de
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
    • G01L21/00—Vacuum gauges
    • G01L21/16—Vacuum gauges by measuring variation of frictional resistance of gases
    • G01L21/22—Vacuum gauges by measuring variation of frictional resistance of gases using resonance effects of a vibrating body; Vacuum gauges of the Klumb type
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
DE89301555T 1988-02-18 1989-02-17 Druckwandler mit Oszillator. Expired - Fee Related DE68910147T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP3598188A JPH01210834A (ja) 1988-02-18 1988-02-18 水晶式熱伝導型真空計
JP14116188A JPH01311241A (ja) 1988-06-08 1988-06-08 水晶式熱伝導型真空計
JP14412888A JPH01312438A (ja) 1988-06-10 1988-06-10 熱伝導型真空計の水晶圧力センサ

Publications (2)

Publication Number Publication Date
DE68910147D1 true DE68910147D1 (de) 1993-12-02
DE68910147T2 DE68910147T2 (de) 1994-02-17

Family

ID=27288939

Family Applications (1)

Application Number Title Priority Date Filing Date
DE89301555T Expired - Fee Related DE68910147T2 (de) 1988-02-18 1989-02-17 Druckwandler mit Oszillator.

Country Status (3)

Country Link
US (1) US4959999A (de)
EP (1) EP0330385B1 (de)
DE (1) DE68910147T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01313728A (ja) * 1988-06-13 1989-12-19 Seiko Electronic Components Ltd 水晶式真空計
US5319965A (en) * 1992-03-02 1994-06-14 Halliburton Company Multiple channel pressure recorder
KR100407815B1 (ko) * 2001-05-04 2003-12-01 학교법인 포항공과대학교 펠티어 효과를 이용한 열전도형 진공 게이지
WO2008149298A1 (en) * 2007-06-04 2008-12-11 Nxp B.V. Pressure gauge
JP5888919B2 (ja) * 2010-11-04 2016-03-22 キヤノン株式会社 成膜装置及び成膜方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079800A (en) * 1959-01-22 1963-03-05 Borg Warner Pressure measuring devices and systems employing the same
SU847099A1 (ru) * 1979-01-29 1981-07-15 Предприятие П/Я М-5539 Пьезорезонансный вакуумметр
JPS6184535A (ja) * 1984-10-03 1986-04-30 Seiko Instr & Electronics Ltd 水晶式気体圧力計
US4607530A (en) * 1984-11-01 1986-08-26 Schlumberger Technology Corporation Temperature compensation for pressure gauges

Also Published As

Publication number Publication date
EP0330385A3 (de) 1991-06-05
EP0330385A2 (de) 1989-08-30
EP0330385B1 (de) 1993-10-27
DE68910147T2 (de) 1994-02-17
US4959999A (en) 1990-10-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee