CA930211A - Piezoelectric transducer and noise making device utilizing same - Google Patents

Piezoelectric transducer and noise making device utilizing same

Info

Publication number
CA930211A
CA930211A CA120842A CA120842A CA930211A CA 930211 A CA930211 A CA 930211A CA 120842 A CA120842 A CA 120842A CA 120842 A CA120842 A CA 120842A CA 930211 A CA930211 A CA 930211A
Authority
CA
Canada
Prior art keywords
piezoelectric transducer
making device
device utilizing
utilizing same
noise making
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.)
Expired
Application number
CA120842A
Other versions
CA120842S (en
Inventor
P. Sweany Louis
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.)
Johnson Matthey Ltd
Original Assignee
Louis P Sweany
Johnson Matthey and Mallory Ltd
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 Louis P Sweany, Johnson Matthey and Mallory Ltd filed Critical Louis P Sweany
Application granted granted Critical
Publication of CA930211A publication Critical patent/CA930211A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • 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
    • B06B1/0223—Driving circuits for generating signals continuous in time
    • B06B1/0238—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave
    • B06B1/0246—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave with a feedback signal
    • B06B1/0261—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave with a feedback signal taken from a transducer or electrode connected to the driving transducer
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • 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
    • B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
    • B06B2201/50—Application to a particular transducer type
    • B06B2201/55—Piezoelectric transducer
CA120842A 1970-08-20 1971-08-18 Piezoelectric transducer and noise making device utilizing same Expired CA930211A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6562270A 1970-08-20 1970-08-20

Publications (1)

Publication Number Publication Date
CA930211A true CA930211A (en) 1973-07-17

Family

ID=22063989

Family Applications (1)

Application Number Title Priority Date Filing Date
CA120842A Expired CA930211A (en) 1970-08-20 1971-08-18 Piezoelectric transducer and noise making device utilizing same

Country Status (3)

Country Link
CA (1) CA930211A (en)
DE (1) DE2141643C3 (en)
GB (1) GB1333644A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3778672A (en) * 1972-07-27 1973-12-11 Ponder & Best Audible alert signal for an electronic flash unit
CA1006969A (en) * 1973-07-26 1977-03-15 Lyle E. Shoot Piezoelectric transducer
CA1087004A (en) * 1976-08-11 1980-10-07 Michael J. Hampshire Sound generator
DE3013788C2 (en) * 1980-04-10 1982-11-25 Siemens AG, 1000 Berlin und 8000 München Piezoceramic disc for a signal generator to generate an acoustic signal
DE3833234C2 (en) * 1988-09-30 1995-03-16 Wolfgang Kessler Procedure for calibrating or testing a piezoceramic transducer
DE102017006181A1 (en) * 2017-06-29 2019-01-03 Diehl Metering Gmbh Measuring device and method for determining a fluid size

Also Published As

Publication number Publication date
DE2141643A1 (en) 1972-03-23
DE2141643B2 (en) 1978-01-12
DE2141643C3 (en) 1978-08-24
GB1333644A (en) 1973-10-10

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