GB2006571A - Pressure Sensors - Google Patents

Pressure Sensors

Info

Publication number
GB2006571A
GB2006571A GB7828314A GB7828314A GB2006571A GB 2006571 A GB2006571 A GB 2006571A GB 7828314 A GB7828314 A GB 7828314A GB 7828314 A GB7828314 A GB 7828314A GB 2006571 A GB2006571 A GB 2006571A
Authority
GB
United Kingdom
Prior art keywords
pressure
piezoelectric ceramic
ceramic device
electrical signals
sufficiently low
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
Application number
GB7828314A
Other versions
GB2006571B (en
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.)
Plessey Co Ltd
Original Assignee
Plessey Co 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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB7828314A priority Critical patent/GB2006571B/en
Publication of GB2006571A publication Critical patent/GB2006571A/en
Application granted granted Critical
Publication of GB2006571B publication Critical patent/GB2006571B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction

Abstract

A pressure sensor 2 comprising a piezoelectric ceramic device 10 which is pressure and temperature sensitive and which is adapted to convert pressure variations into electrical signals; an amplifier 14 for amplifying the electrical signals; and a polymeric material 12, e.g. a dimethyl siloxane polymer, which has a sufficiently low attentuation to pressure waves, a sufficiently low thermal conductivity, and a sufficiently high specific heat that it substantially thermally isolates the piezoelectric ceramic device 10 without substantially impeding the pressure sensitivity of the piezoelectric ceramic device 10. <IMAGE>
GB7828314A 1977-08-11 1978-06-29 Pressure sensor Expired GB2006571B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7828314A GB2006571B (en) 1977-08-11 1978-06-29 Pressure sensor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3365077 1977-08-11
GB7828314A GB2006571B (en) 1977-08-11 1978-06-29 Pressure sensor

Publications (2)

Publication Number Publication Date
GB2006571A true GB2006571A (en) 1979-05-02
GB2006571B GB2006571B (en) 1982-01-06

Family

ID=26261957

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7828314A Expired GB2006571B (en) 1977-08-11 1978-06-29 Pressure sensor

Country Status (1)

Country Link
GB (1) GB2006571B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040390A2 (en) * 1980-05-16 1981-11-25 Siemens Aktiengesellschaft Pressure detector for an internal-combustion engine
FR2618283A1 (en) * 1987-07-16 1989-01-20 Saint Louis Inst ACOUSTIC PRESSURE SENSOR INSENSITIVE TO THE EFFECTS OF THE WIND.
US20130205888A1 (en) * 2012-02-10 2013-08-15 Austin Powder Company Method and apparatus to measure borehole pressure during blasting
US10006281B2 (en) 2012-02-10 2018-06-26 Austin Star Detonator Company Calibration of molded piezoelectric longitudinal charge coefficient of a pressure sensor for blasting operation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040390A2 (en) * 1980-05-16 1981-11-25 Siemens Aktiengesellschaft Pressure detector for an internal-combustion engine
EP0040390A3 (en) * 1980-05-16 1982-02-24 Siemens Aktiengesellschaft Berlin Und Munchen Pressure detector for an internal-combustion engine
FR2618283A1 (en) * 1987-07-16 1989-01-20 Saint Louis Inst ACOUSTIC PRESSURE SENSOR INSENSITIVE TO THE EFFECTS OF THE WIND.
US20130205888A1 (en) * 2012-02-10 2013-08-15 Austin Powder Company Method and apparatus to measure borehole pressure during blasting
US10006281B2 (en) 2012-02-10 2018-06-26 Austin Star Detonator Company Calibration of molded piezoelectric longitudinal charge coefficient of a pressure sensor for blasting operation

Also Published As

Publication number Publication date
GB2006571B (en) 1982-01-06

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920629