GB1387323A - Piezoelectric pressure and force transducers or acclerometers - Google Patents

Piezoelectric pressure and force transducers or acclerometers

Info

Publication number
GB1387323A
GB1387323A GB867272A GB867272A GB1387323A GB 1387323 A GB1387323 A GB 1387323A GB 867272 A GB867272 A GB 867272A GB 867272 A GB867272 A GB 867272A GB 1387323 A GB1387323 A GB 1387323A
Authority
GB
United Kingdom
Prior art keywords
disc
degrees
plane
rod
angle
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
Application number
GB867272A
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.)
Kistler Instrumente AG
Original Assignee
Kistler Instrumente AG
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 Kistler Instrumente AG filed Critical Kistler Instrumente AG
Publication of GB1387323A publication Critical patent/GB1387323A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/09—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by piezoelectric pick-up
    • G01P15/0907—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by piezoelectric pick-up of the compression mode type
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

1387323 Piezoelectric devices KISTLER INSTRUMENTE AG 24 Feb 1972 [15 March 1971] 8672/72 Heading H1E A piezoelectric element for use in a force transducer comprises a disc 14 or a rod 9, a disc being used for the longitudinal effect with force introduction surfaces parallel to electrode surfaces and a rod being used for the transverse effect with force introduction surfaces perpendicular to at least one electrode surface, the element in either case being cut so that the stress state produced in use is directed along a line which is inclined to the XY plane at an angle a which is greater than 0 and less than 90 degrees and in the case of the disc is inclined at an angle # to the YZ plane where # is greater than 0 and less than 30 degrees. The crystal is quartz or a similar material. The arrangement is said to improve high temperature performance by providing stability against Dauphine twin formation.
GB867272A 1971-03-15 1972-02-24 Piezoelectric pressure and force transducers or acclerometers Expired GB1387323A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH375871A CH536489A (en) 1971-03-15 1971-03-15 Piezoelectric pressure, force or acceleration sensor

Publications (1)

Publication Number Publication Date
GB1387323A true GB1387323A (en) 1975-03-12

Family

ID=4262857

Family Applications (1)

Application Number Title Priority Date Filing Date
GB867272A Expired GB1387323A (en) 1971-03-15 1972-02-24 Piezoelectric pressure and force transducers or acclerometers

Country Status (5)

Country Link
AT (1) AT348795B (en)
CH (1) CH536489A (en)
DK (1) DK136553B (en)
FR (1) FR2129571A5 (en)
GB (1) GB1387323A (en)

Also Published As

Publication number Publication date
DK136553C (en) 1978-03-20
ATA141772A (en) 1978-07-15
AT348795B (en) 1979-03-12
FR2129571A5 (en) 1972-10-27
DE2208023A1 (en) 1972-11-02
DK136553B (en) 1977-10-24
DE2208023B2 (en) 1976-05-26
CH536489A (en) 1973-04-30

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Legal Events

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