JPS58145294A - 安定化された圧電送信機 - Google Patents

安定化された圧電送信機

Info

Publication number
JPS58145294A
JPS58145294A JP57223142A JP22314282A JPS58145294A JP S58145294 A JPS58145294 A JP S58145294A JP 57223142 A JP57223142 A JP 57223142A JP 22314282 A JP22314282 A JP 22314282A JP S58145294 A JPS58145294 A JP S58145294A
Authority
JP
Japan
Prior art keywords
diaphragm
pair
conductive regions
transducer
piezoelectric
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.)
Pending
Application number
JP57223142A
Other languages
English (en)
Japanese (ja)
Inventor
マイケル・ジ−・シ−・テイラ−
マルク・エイチ・エル・ブエルマン
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.)
Siemens NV SA
Original Assignee
GTE Atea NV SA
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 GTE Atea NV SA filed Critical GTE Atea NV SA
Publication of JPS58145294A publication Critical patent/JPS58145294A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
    • G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
    • G01H11/08—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
JP57223142A 1981-12-21 1982-12-21 安定化された圧電送信機 Pending JPS58145294A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US33279081A 1981-12-21 1981-12-21
US332790 1981-12-21

Publications (1)

Publication Number Publication Date
JPS58145294A true JPS58145294A (ja) 1983-08-30

Family

ID=23299863

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57223142A Pending JPS58145294A (ja) 1981-12-21 1982-12-21 安定化された圧電送信機

Country Status (3)

Country Link
JP (1) JPS58145294A (it)
BE (1) BE895396A (it)
IT (1) IT1205620B (it)

Also Published As

Publication number Publication date
IT1205620B (it) 1989-03-23
IT8224858A0 (it) 1982-12-20
BE895396A (fr) 1983-04-15

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