GB2229816B - Pressure sensor - Google Patents

Pressure sensor

Info

Publication number
GB2229816B
GB2229816B GB8907285A GB8907285A GB2229816B GB 2229816 B GB2229816 B GB 2229816B GB 8907285 A GB8907285 A GB 8907285A GB 8907285 A GB8907285 A GB 8907285A GB 2229816 B GB2229816 B GB 2229816B
Authority
GB
United Kingdom
Prior art keywords
pressure sensor
sensor
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 - Lifetime
Application number
GB8907285A
Other versions
GB8907285D0 (en
GB2229816A (en
Inventor
John Christopher Greenwood
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.)
STC PLC
Nortel Networks Optical Components Ltd
Original Assignee
STC PLC
Northern Telecom Europe 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
Application filed by STC PLC, Northern Telecom Europe Ltd filed Critical STC PLC
Priority to GB8907285A priority Critical patent/GB2229816B/en
Publication of GB8907285D0 publication Critical patent/GB8907285D0/en
Publication of GB2229816A publication Critical patent/GB2229816A/en
Application granted granted Critical
Publication of GB2229816B publication Critical patent/GB2229816B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01L9/0001—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
    • G01L9/0019—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a semiconductive element
GB8907285A 1989-03-31 1989-03-31 Pressure sensor Expired - Lifetime GB2229816B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8907285A GB2229816B (en) 1989-03-31 1989-03-31 Pressure sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8907285A GB2229816B (en) 1989-03-31 1989-03-31 Pressure sensor

Publications (3)

Publication Number Publication Date
GB8907285D0 GB8907285D0 (en) 1989-05-17
GB2229816A GB2229816A (en) 1990-10-03
GB2229816B true GB2229816B (en) 1992-11-18

Family

ID=10654247

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8907285A Expired - Lifetime GB2229816B (en) 1989-03-31 1989-03-31 Pressure sensor

Country Status (1)

Country Link
GB (1) GB2229816B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2235773B (en) * 1989-08-30 1993-12-22 Schlumberger Ind Ltd Sensors
EP0419021A3 (en) * 1989-08-30 1991-10-09 Schlumberger Industries Limited Sensors with vibrating elements
US7490519B2 (en) 2005-09-30 2009-02-17 General Electric Company System and method for sensing differential pressure
GB2470399B (en) * 2009-05-21 2013-11-27 Ge Infrastructure Sensing Inc A sensor arranged to measure more than one characteristic of a fluid

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2034970A (en) * 1978-10-06 1980-06-11 Hitachi Ltd Semiconductor pressure transducer
EP0111640A2 (en) * 1982-09-20 1984-06-27 Hitachi, Ltd. Pressure sensor with semi-conductor diaphragm
WO1988001049A1 (en) * 1986-07-28 1988-02-11 Rosemount Inc. Media isolated differential pressure sensors

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2034970A (en) * 1978-10-06 1980-06-11 Hitachi Ltd Semiconductor pressure transducer
EP0111640A2 (en) * 1982-09-20 1984-06-27 Hitachi, Ltd. Pressure sensor with semi-conductor diaphragm
WO1988001049A1 (en) * 1986-07-28 1988-02-11 Rosemount Inc. Media isolated differential pressure sensors

Also Published As

Publication number Publication date
GB8907285D0 (en) 1989-05-17
GB2229816A (en) 1990-10-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930331