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GB1054081A - - Google Patents

Info

Publication number
GB1054081A
GB1054081A GB1054081DA GB1054081A GB 1054081 A GB1054081 A GB 1054081A GB 1054081D A GB1054081D A GB 1054081DA GB 1054081 A GB1054081 A GB 1054081A
Authority
GB
United Kingdom
Prior art keywords
crystal
crystals
spring
piezo
april
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.)
Active
Application number
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.)
Publication of GB1054081A publication Critical patent/GB1054081A/en
Active legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
    • G01L23/08—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically
    • G01L23/10—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically by pressure-sensitive members of the piezoelectric 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
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/008—Transmitting or indicating the displacement of flexible diaphragms using piezoelectric devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Measuring Fluid Pressure (AREA)
  • Earth Drilling (AREA)

Abstract

1, 054,081. Pressure transducers. KISTLER INSTRUMENTE A. G. April 3, 1964 [April 5, 1963], No. 13834/64. Heading G1N. A Piezo-electric transducer comprises a crystal assembly 17 enclosing a region 18, the inwardlyfacing crystal surface each having an electrically conductive layer to which connection is made by means of a helical contact spring 19. The plane surfaces of each crystal segment lie in a plane containing the optical and neutral axes, and the segments may each have a different height, H. The heights are chosen so that the sum of the Piezo-electric moduli corresponds to a predetermined value. The crystals (e.g. quartz) are enclosed in a thin-walled prestressed tubular spring 13 to which electrical connection is made through conductive layers on the curved crystal surfaces. Ceramic rings 26, 27 with predetermined co-efficients of expansion are provided above and below the crystals. Contact spring 19 is secured in sleeve 21 which is mounted in a ceramic insulator 22. When the spring has been inserted, by a screwing action, it is rotated in the opposite direction to expand the turns. The crystal assembly may comprise a hollow cylinder formed of one or more separate crystals, Fig. 5 (not shown), or a stack of ring-shaped laminations may be used.
GB1054081D 1963-04-05 Active GB1054081A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH435063A CH392103A (en) 1963-04-05 1963-04-05 Piezoelectric pressure transmitter

Publications (1)

Publication Number Publication Date
GB1054081A true GB1054081A (en)

Family

ID=4274451

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1054081D Active GB1054081A (en) 1963-04-05

Country Status (4)

Country Link
AT (1) AT248151B (en)
CH (1) CH392103A (en)
DE (2) DE1904780U (en)
GB (1) GB1054081A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7548012B2 (en) 2003-09-17 2009-06-16 Kistler Holding, Ag Multi-layer piezoelectric measuring element, and pressure sensor or force sensor comprising such a measuring element
US8297133B2 (en) 2005-06-20 2012-10-30 S.W.A.C. Schmitt-Walter Automation Consult Gmbh Pressure sensor
US10330550B2 (en) 2015-12-03 2019-06-25 Kistler Holding Ag Piezoelectric pressure sensor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0694561A (en) * 1992-09-11 1994-04-05 Matsushita Electric Ind Co Ltd Piezoelectric pressure sensor
AT514607B1 (en) * 2013-08-30 2015-02-15 Piezocryst Advanced Sensorics pressure sensor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH247026A (en) * 1943-04-06 1947-02-15 Philips Nv Pressure transducer with at least one prestressed piezo-electric crystal.
CH340356A (en) * 1956-06-14 1959-08-15 Schweizerische Lokomotiv Piezoelectric pressure transmitter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7548012B2 (en) 2003-09-17 2009-06-16 Kistler Holding, Ag Multi-layer piezoelectric measuring element, and pressure sensor or force sensor comprising such a measuring element
US8297133B2 (en) 2005-06-20 2012-10-30 S.W.A.C. Schmitt-Walter Automation Consult Gmbh Pressure sensor
US10330550B2 (en) 2015-12-03 2019-06-25 Kistler Holding Ag Piezoelectric pressure sensor

Also Published As

Publication number Publication date
AT248151B (en) 1966-07-11
DE1236827B (en) 1967-03-16
DE1904780U (en) 1964-11-19
CH392103A (en) 1965-05-15
DE1236827C2 (en) 1973-02-08

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