ATE891T1 - PIEZOELECTRIC EXTENDER. - Google Patents

PIEZOELECTRIC EXTENDER.

Info

Publication number
ATE891T1
ATE891T1 AT79104757T AT79104757T ATE891T1 AT E891 T1 ATE891 T1 AT E891T1 AT 79104757 T AT79104757 T AT 79104757T AT 79104757 T AT79104757 T AT 79104757T AT E891 T1 ATE891 T1 AT E891T1
Authority
AT
Austria
Prior art keywords
machine part
force
piezoelectric
subjected
strain
Prior art date
Application number
AT79104757T
Other languages
German (de)
Inventor
Peter Wolfer
Hansrudolf Derrer
Max Dipl.-Ing. Vollenweider
Hans-Conrad Dipl.-Ing. Sonderegger
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
Application granted granted Critical
Publication of ATE891T1 publication Critical patent/ATE891T1/en

Links

Classifications

    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

A piezoelectric strain/force transducer is described, which is attached preferably by only one locking screw to a test specimen or machine part. The force transmitting member of the transducer comprises two bearing surfaces at a distance apart, which bear frictionally on the surface of the machine part and experience a change in spacing in the case of a change in length of the machine part. Due to this, a resilient member, which can be adapted to a desired sensitivity of the gauge, is tensioned and a set of piezoelectric plates held under precompression in the force-transmitting member are subjected to a corresponding shearing force. The piezoelectric plates are cut or polarized so that they respond piezoelectrically solely to shearing forces. The resulting piezoelectric charge is a measurement of the strain or mechanical stress of the machine part and can be used for monitoring or controlling machines or components, in particular those which are subjected to cyclic loads.
AT79104757T 1978-12-22 1979-11-29 PIEZOELECTRIC EXTENDER. ATE891T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2855746A DE2855746C3 (en) 1978-12-22 1978-12-22 Piezoelectric extensometer
EP79104757A EP0012867B1 (en) 1978-12-22 1979-11-29 Piezoelectric strain transducer

Publications (1)

Publication Number Publication Date
ATE891T1 true ATE891T1 (en) 1982-05-15

Family

ID=6058150

Family Applications (1)

Application Number Title Priority Date Filing Date
AT79104757T ATE891T1 (en) 1978-12-22 1979-11-29 PIEZOELECTRIC EXTENDER.

Country Status (4)

Country Link
US (1) US4314481A (en)
EP (1) EP0012867B1 (en)
AT (1) ATE891T1 (en)
DE (2) DE2855746C3 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4887100A (en) * 1987-01-10 1989-12-12 Am International, Inc. Droplet deposition apparatus
IT1224487B (en) * 1988-10-12 1990-10-04 Polysens Spa TRANSDUCER FOR THE DETECTION OF DYNAMIC STRESSES AND MEASUREMENT AND CONTROL EQUIPMENT INCLUDING SUCH TRANSDUCER
CH683718A5 (en) * 1992-05-15 1994-04-29 Kk Holding Ag Combined load cell, strain and acoustic emission.
US5355715A (en) * 1992-06-29 1994-10-18 Pile Dynamics, Inc. Strain transducer calibration device
CH685613A5 (en) * 1992-10-23 1995-08-31 Kk Holding Ag Method and apparatus for detecting material stresses in molded parts.
CH689125A5 (en) * 1993-09-02 1998-10-15 Kk Holding Ag Acoustic emission.
DE59809748D1 (en) 1997-11-18 2003-10-30 Hera Rotterdam Bv PIEZOELECTRIC STRETCH SENSOR AND METHOD FOR MEASURING STRETCHES ON SURFACES WITH SUCH A SENSOR
US6715363B1 (en) * 1998-02-20 2004-04-06 Wilcoxon Research, Inc. Method and apparatus for strain amplification for piezoelectric transducers
FR2790830B1 (en) * 1999-03-11 2004-08-27 Nicolas Hamburger MINIATURE EXTENSOMETER OF LOW STIFFNESS
US6397677B1 (en) 2000-06-06 2002-06-04 Kistler Instrument Corporation Piezoelectric rotational accelerometer
FR2837920B1 (en) * 2002-03-27 2004-06-18 Philippe Maubant EXTENSOMETRIC MEASURING DEVICE
GB2390832B (en) * 2002-07-18 2006-12-13 Emhart Llc Improved blind fastener setting tool
DE10257732B4 (en) * 2002-12-06 2005-05-04 Hegewald & Peschke Meß- und Prüftechnik GmbH Displacement measuring device for movable measuring arms for testing machines
US6923068B2 (en) * 2003-06-19 2005-08-02 Dynisco, Inc. Pressure transducer
DE502006007780D1 (en) * 2005-05-26 2010-10-14 Kistler Holding Ag STRAIN SENSOR
WO2007128149A1 (en) * 2006-05-04 2007-11-15 Kistler Holding Ag Piezoelectric measuring element with transverse effect and sensor comprising such a measuring element
CN102519634B (en) * 2011-12-12 2014-04-09 济南大学 Piezoelectric film force sensor
US9021677B1 (en) * 2012-01-12 2015-05-05 Gemcor Ii, Llc Apparatus and method for improving safety and quality of automatic riveting operations
CH706635A1 (en) * 2012-06-20 2013-12-31 Kistler Holding Ag Measuring element, measuring element and measuring device for measuring a force and use of such a measuring body.
CN103674734B (en) * 2012-09-14 2017-03-22 中国国际海运集装箱(集团)股份有限公司 Floor strength grade detection device and floor strength grade detection method
CN110388868B (en) * 2019-07-30 2021-03-23 哈尔滨理工大学 Size detection system for chip removal groove of Kirschner wire
EP4249858A1 (en) * 2022-03-21 2023-09-27 Kistler Holding AG System for operating a physical measuring chain
CN116447962B (en) * 2023-03-09 2023-09-15 中国人民解放军海军第九七一医院 Scar thickness measuring equipment based on piezoelectric effect

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1067240B (en) * 1959-10-15
DE674841C (en) * 1931-05-09 1939-04-24 Hans Erich Linckh Dr Ing Device for measuring displacements between two or more points on the body
US3252321A (en) * 1961-08-21 1966-05-24 Bell Telephone Labor Inc Piezoresistive material
US3545283A (en) * 1966-07-25 1970-12-08 Electra Scient Corp Non-linear accelerometer
CH472668A (en) * 1967-09-05 1969-05-15 Kistler Instrumente Ag Setup with a multi-component piezo measuring cell
CH492968A (en) * 1968-07-30 1970-06-30 Kistler Instrumente Ag Process for the production of piezoelectric measuring cells and measuring cell obtained by the process
US4059991A (en) * 1975-08-01 1977-11-29 Dybel William P Modular constructed load sensing system
DE2617987C2 (en) * 1976-04-24 1985-06-20 Elan-Schaltelemente Kurt Maecker Gmbh, 4040 Neuss Measuring device with strain gauges

Also Published As

Publication number Publication date
DE2962593D1 (en) 1982-06-03
US4314481A (en) 1982-02-09
EP0012867A1 (en) 1980-07-09
DE2855746B2 (en) 1980-10-16
DE2855746A1 (en) 1980-06-26
DE2855746C3 (en) 1981-07-30
EP0012867B1 (en) 1982-04-21

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