GB2001438A - Method of excitating a transmitter including an electroacoustic transducer - Google Patents

Method of excitating a transmitter including an electroacoustic transducer

Info

Publication number
GB2001438A
GB2001438A GB787830324A GB7830324A GB2001438A GB 2001438 A GB2001438 A GB 2001438A GB 787830324 A GB787830324 A GB 787830324A GB 7830324 A GB7830324 A GB 7830324A GB 2001438 A GB2001438 A GB 2001438A
Authority
GB
United Kingdom
Prior art keywords
adjustable
electroacoustic transducer
excitating
pulse
transmitter including
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
GB787830324A
Other versions
GB2001438B (en
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
Nukem GmbH
Original Assignee
Nukem GmbH
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 Nukem GmbH, Mannesmann AG filed Critical Nukem GmbH
Publication of GB2001438A publication Critical patent/GB2001438A/en
Application granted granted Critical
Publication of GB2001438B publication Critical patent/GB2001438B/en
Expired 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

Abstract

The electroacoustic transducer of a transducer head used in such devices as an ultrasonic test equipment or an air-borne noise transmitter is supplied with a pulse having a pulse width which is adjustable. Figure 2 shows a graphical plot of a pulse 4 used in the transducer according to the invention on an amplitude time diagram having as well as an adjustable pulse width 5 adjustable descending and ascending flanks 6, 7. <IMAGE>
GB787830324A 1977-07-20 1978-07-19 Method of excitating a transmitter including an electroacoustic transducer Expired GB2001438B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2733308A DE2733308C3 (en) 1977-07-20 1977-07-20 Method for the excitation of electroacoustic transducers

Publications (2)

Publication Number Publication Date
GB2001438A true GB2001438A (en) 1979-01-31
GB2001438B GB2001438B (en) 1982-01-13

Family

ID=6014665

Family Applications (1)

Application Number Title Priority Date Filing Date
GB787830324A Expired GB2001438B (en) 1977-07-20 1978-07-19 Method of excitating a transmitter including an electroacoustic transducer

Country Status (5)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2121173A (en) * 1982-04-28 1983-12-14 West Electric Co Pulsed ultrasonic auto-focussing device
EP0702350A3 (en) * 1994-09-17 1998-12-30 Richard Wolf GmbH Driving circuit for a soundpulse source

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3009975C2 (en) * 1980-03-14 1983-01-27 Siemens AG, 1000 Berlin und 8000 München Method for the impulse excitation of a piezoelectric sound transducer
DE3142069A1 (en) * 1981-10-23 1983-05-05 Karl Deutsch Prüf- und Meßgerätebau, 5600 Wuppertal Method and device for generating short narrow-band sound pulses by means of ultrasonic probes
DE10239087A1 (en) * 2002-08-26 2004-03-11 Delphi Technologies, Inc., Troy Indoor surveillance method and system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL148458B (en) * 1967-03-07 1976-01-15 Tno ULTRASONORIC TRANSMITTER.
DE1766766A1 (en) * 1968-07-11 1971-08-19 Krupp Gmbh Device for swiveling a focused, acoustic beam
US3800170A (en) * 1973-03-16 1974-03-26 Ibm Low power dissipation high voltage crystal driver
US3982425A (en) * 1974-01-14 1976-09-28 Rockwell International Corporation Ultrasonic inspection system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2121173A (en) * 1982-04-28 1983-12-14 West Electric Co Pulsed ultrasonic auto-focussing device
EP0702350A3 (en) * 1994-09-17 1998-12-30 Richard Wolf GmbH Driving circuit for a soundpulse source

Also Published As

Publication number Publication date
GB2001438B (en) 1982-01-13
IT7825444A0 (en) 1978-07-07
JPS5459974A (en) 1979-05-15
DE2733308A1 (en) 1979-01-25
DE2733308C3 (en) 1984-04-19
FR2403707B1 (en) 1984-02-24
DE2733308B2 (en) 1979-05-23
FR2403707A1 (en) 1979-04-13
IT1097496B (en) 1985-08-31

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee