PL2915255T3 - Układ wyczuwający klawisz piezoelektryczny i sposób testowania układu wyczuwającego klawisz piezoelektryczny - Google Patents

Układ wyczuwający klawisz piezoelektryczny i sposób testowania układu wyczuwającego klawisz piezoelektryczny

Info

Publication number
PL2915255T3
PL2915255T3 PL12848759T PL12848759T PL2915255T3 PL 2915255 T3 PL2915255 T3 PL 2915255T3 PL 12848759 T PL12848759 T PL 12848759T PL 12848759 T PL12848759 T PL 12848759T PL 2915255 T3 PL2915255 T3 PL 2915255T3
Authority
PL
Poland
Prior art keywords
sensing circuit
key sensing
piezo key
testing
piezo
Prior art date
Application number
PL12848759T
Other languages
English (en)
Inventor
Tony Dmytriw
Original Assignee
Diehl Ako Stiftung & Co. Kg
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 Diehl Ako Stiftung & Co. Kg filed Critical Diehl Ako Stiftung & Co. Kg
Publication of PL2915255T3 publication Critical patent/PL2915255T3/pl

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
    • G01R27/2605—Measuring capacitance
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches
    • H03K17/964—Piezoelectric touch switches
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Input From Keyboards Or The Like (AREA)
PL12848759T 2012-10-31 2012-10-31 Układ wyczuwający klawisz piezoelektryczny i sposób testowania układu wyczuwającego klawisz piezoelektryczny PL2915255T3 (pl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2012/003093 WO2014068360A1 (en) 2012-10-31 2012-10-31 Piezo key sensing circuit and method for testing the piezo key sensing circuit

Publications (1)

Publication Number Publication Date
PL2915255T3 true PL2915255T3 (pl) 2017-06-30

Family

ID=48326338

Family Applications (1)

Application Number Title Priority Date Filing Date
PL12848759T PL2915255T3 (pl) 2012-10-31 2012-10-31 Układ wyczuwający klawisz piezoelektryczny i sposób testowania układu wyczuwającego klawisz piezoelektryczny

Country Status (5)

Country Link
US (1) US9804214B2 (pl)
EP (1) EP2915255B1 (pl)
CN (1) CN104782047B (pl)
PL (1) PL2915255T3 (pl)
WO (1) WO2014068360A1 (pl)

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5410214B2 (pl) * 1973-10-15 1979-05-02
US3931610A (en) * 1973-11-29 1976-01-06 Teletype Corporation Capacitive keyswitch sensor and method
US4539554A (en) * 1982-10-18 1985-09-03 At&T Bell Laboratories Analog integrated circuit pressure sensor
US5136202A (en) * 1990-08-31 1992-08-04 Atochem North America, Inc Material sensor
JP2804937B2 (ja) * 1992-10-15 1998-09-30 矢崎総業株式会社 システムスイッチ装置
DE19733560B4 (de) * 1997-08-02 2007-04-05 Robert Bosch Gmbh Verfahren und Vorrichtung zum Laden und Entladen eines piezoelektrischen Elements
US6522032B1 (en) * 1999-05-07 2003-02-18 Easter-Owen Electric Company Electrical switch and method of generating an electrical switch output signal
US6698269B2 (en) * 2001-04-27 2004-03-02 Oceana Sensor Technologies, Inc. Transducer in-situ testing apparatus and method
US7042228B2 (en) * 2001-04-27 2006-05-09 Oceana Sensor Technologies, Inc. Transducer in-situ testing apparatus and method
US6556028B1 (en) * 2001-05-07 2003-04-29 Storage Test Solutions, Inc. Method and apparatus for detecting defects in piezoelectric actuators
US6531884B1 (en) * 2001-08-27 2003-03-11 Rosemount Inc. Diagnostics for piezoelectric sensor
DE10349824A1 (de) * 2003-10-24 2005-06-02 Robert Bosch Gmbh Verfahren zur Diagnose einer Kraftstoff-Einspritzvorrichtung, welche einen Piezoaktor aufweist
DE102004058672A1 (de) * 2004-12-06 2006-06-08 Robert Bosch Gmbh Elektrische Schaltung zur Ansteuerung eines piezoelektrischen Elements insbesondere einer Kraftstoffeinspritzanlage eines Kraftfahrzeugs
US7190213B2 (en) * 2005-03-25 2007-03-13 Freescale Semiconductor, Inc. Digital time constant tracking technique and apparatus
US7857413B2 (en) * 2007-03-01 2010-12-28 Applied Materials, Inc. Systems and methods for controlling and testing jetting stability in inkjet print heads
CN101281057B (zh) * 2007-04-02 2011-06-22 鸿富锦精密工业（深圳）有限公司 气流检测装置
EP2048343A1 (en) * 2007-10-11 2009-04-15 Delphi Technologies, Inc. Detection of faults in an injector arrangement
US7816838B2 (en) * 2007-12-11 2010-10-19 Nokia Corporation Piezoelectric force sensing
DE102008001571A1 (de) * 2008-05-06 2009-11-12 Robert Bosch Gmbh Verfahren und Vorrichtung zur Überwachung eines Piezoaktors
CN101806875A (zh) * 2009-02-13 2010-08-18 无锡油泵油嘴研究所 压电执行器的诊断检测方法及装置
US20110029287A1 (en) * 2009-07-31 2011-02-03 Carnegie Mellon University Self-Diagnosing Transducers and Systems and Methods Therefor
CN104081176B (zh) * 2012-01-20 2016-08-24 罗斯蒙特公司 压电换能器的具有自测的现场设备

Also Published As

Publication number Publication date
EP2915255B1 (en) 2016-12-28
WO2014068360A1 (en) 2014-05-08
CN104782047A (zh) 2015-07-15
US20150260770A1 (en) 2015-09-17
US9804214B2 (en) 2017-10-31
CN104782047B (zh) 2018-06-19
EP2915255A1 (en) 2015-09-09

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