FR2403707A1 - Procede d'excitation de transducteurs electro-acoustiques - Google Patents

Procede d'excitation de transducteurs electro-acoustiques

Info

Publication number
FR2403707A1
FR2403707A1 FR7821145A FR7821145A FR2403707A1 FR 2403707 A1 FR2403707 A1 FR 2403707A1 FR 7821145 A FR7821145 A FR 7821145A FR 7821145 A FR7821145 A FR 7821145A FR 2403707 A1 FR2403707 A1 FR 2403707A1
Authority
FR
France
Prior art keywords
electro
acoustic transducer
excitation process
transducer excitation
pulse
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.)
Granted
Application number
FR7821145A
Other languages
English (en)
Other versions
FR2403707B1 (fr
Inventor
Raimund Lang
Jorg Quittkat
Gert Fischer
Dieter Lather
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Publication of FR2403707A1 publication Critical patent/FR2403707A1/fr
Application granted granted Critical
Publication of FR2403707B1 publication Critical patent/FR2403707B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/0207—Driving circuits
    • B06B1/0215—Driving circuits for generating pulses, e.g. bursts of oscillations, envelopes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Measuring Volume Flow (AREA)

Abstract

L'invention se rapporte aux transducteurs électro-acoustiques. Suivant l'invention, pour améliorer le pouvoir de résolution on agit non seulement sur le front avant de l'impulsion d'émission mais également sur la largeur de cette impulsion et sur le front arrière. L'invention s'applique notamment au contrôle non destructif par ultra-sons, aux émetteurs de sons propagés dans l'air.
FR7821145A 1977-07-20 1978-07-17 Procede d'excitation de transducteurs electro-acoustiques Granted FR2403707A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2733308A DE2733308C3 (de) 1977-07-20 1977-07-20 Verfahren zur Anregung von elektroakustischen Wandlern

Publications (2)

Publication Number Publication Date
FR2403707A1 true FR2403707A1 (fr) 1979-04-13
FR2403707B1 FR2403707B1 (fr) 1984-02-24

Family

ID=6014665

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7821145A Granted FR2403707A1 (fr) 1977-07-20 1978-07-17 Procede d'excitation de transducteurs electro-acoustiques

Country Status (5)

Country Link
JP (1) JPS5459974A (fr)
DE (1) DE2733308C3 (fr)
FR (1) FR2403707A1 (fr)
GB (1) GB2001438B (fr)
IT (1) IT1097496B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3009975C2 (de) * 1980-03-14 1983-01-27 Siemens AG, 1000 Berlin und 8000 München Verfahren zur Impulsanregung eines piezoelektrischen Schall-Sendewandlers
DE3142069A1 (de) * 1981-10-23 1983-05-05 Karl Deutsch Prüf- und Meßgerätebau, 5600 Wuppertal Verfahren und vorrichtung zur erzeugung kurzer, schmalbandiger schallimpulse mittels ultraschallpruefkoepfen
JPS58187916A (ja) * 1982-04-28 1983-11-02 West Electric Co Ltd 超音波測距装置
DE4433224C1 (de) * 1994-09-17 1996-03-28 Wolf Gmbh Richard Ansteuerschaltung für eine Impulsschallquelle
DE10239087A1 (de) * 2002-08-26 2004-03-11 Delphi Technologies, Inc., Troy Verfahren und System zur Innenraumüberwachung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1556043A (fr) * 1967-03-07 1969-01-31
FR2014566A1 (fr) * 1968-07-11 1970-04-17 Krupp Gmbh
FR2221877A1 (fr) * 1973-03-16 1974-10-11 Ibm
FR2258071A1 (fr) * 1974-01-14 1975-08-08 Rockwell International Corp

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1556043A (fr) * 1967-03-07 1969-01-31
FR2014566A1 (fr) * 1968-07-11 1970-04-17 Krupp Gmbh
FR2221877A1 (fr) * 1973-03-16 1974-10-11 Ibm
FR2258071A1 (fr) * 1974-01-14 1975-08-08 Rockwell International Corp

Also Published As

Publication number Publication date
FR2403707B1 (fr) 1984-02-24
JPS5459974A (en) 1979-05-15
GB2001438B (en) 1982-01-13
DE2733308B2 (de) 1979-05-23
DE2733308C3 (de) 1984-04-19
DE2733308A1 (de) 1979-01-25
IT1097496B (it) 1985-08-31
IT7825444A0 (it) 1978-07-07
GB2001438A (en) 1979-01-31

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Legal Events

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