GB1040996A - Ceramic transducer assembly - Google Patents

Ceramic transducer assembly

Info

Publication number
GB1040996A
GB1040996A GB23707/64A GB2370764A GB1040996A GB 1040996 A GB1040996 A GB 1040996A GB 23707/64 A GB23707/64 A GB 23707/64A GB 2370764 A GB2370764 A GB 2370764A GB 1040996 A GB1040996 A GB 1040996A
Authority
GB
United Kingdom
Prior art keywords
tube
openings
arm
assembly
june
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
GB23707/64A
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.)
Bendix Corp
Original Assignee
Bendix Corp
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 Bendix Corp filed Critical Bendix Corp
Publication of GB1040996A publication Critical patent/GB1040996A/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
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
    • B06B1/0662—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface
    • B06B1/0674—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface and a low impedance backing, e.g. air
    • 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
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
    • B06B1/0622—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements on one surface
    • B06B1/0633—Cylindrical array

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

1,040,996. Transducers; resonators. BENDIX CORPORATION. June 8, 1964 [June 28, 1963], No. 23707/64. Headings H4J and H4X. An electromechanical transducer assembly comprises at least one tubular ceramic radiating element, the central cavity of the element being acoustically isolated from the exterior radiating surface of the element and filled with a fluid acoustical energy-transmitting medium, and there being within the central cavity an acoustic loading means of generally tubular configuration for controlling the resonant frequency of the assembly. The acoustic loading means may be an imperforate tube. Preferably the transducer assembly 14 (Fig. 1) comprises a cylindrical rubber window 13 extending between a top plate 10 carrying an electrical connector 11, and a bottom plate 12. A perforated tube 15 extends between plates 10 and 12 and is encircled by three tubular ceramic transducer elements 16 which act as radial vibrators. Castor oil fills the region between the transducer elements 16 and the tube 15 andalso the interior of the tube 15. Openings 24 permit flow of the castor oil. The resonant frequency of the assembly is continuously variable over a limited range (e.g. 7À5 to 8À5 kc/s.) by providing an inner tube 25 with openings 26, this tube 25 being concentric with, and fitting closely within, tube 15. A shaft 30 is secured to an end-plate 32 on the inner tube 25 and carries an arm 33. By adjustment of the arm 33 the degree of registration of the openings 24 and 26 may be adjusted over a limited arc. Arm 33 may be locked by a screw 34.
GB23707/64A 1963-06-28 1964-06-08 Ceramic transducer assembly Expired GB1040996A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US291383A US3309653A (en) 1963-06-28 1963-06-28 Ceramic transducer assembly

Publications (1)

Publication Number Publication Date
GB1040996A true GB1040996A (en) 1966-09-01

Family

ID=23120082

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23707/64A Expired GB1040996A (en) 1963-06-28 1964-06-08 Ceramic transducer assembly

Country Status (3)

Country Link
US (1) US3309653A (en)
DE (1) DE1207679B (en)
GB (1) GB1040996A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0784845A1 (en) * 1994-10-07 1997-07-23 The Center For Innovative Technology Active control of aircraft engine inlet noise using compact sound sources and distributed error sensors

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3375488A (en) * 1966-11-03 1968-03-26 Bendix Corp Underwater transducer configuration
US3390559A (en) * 1967-08-30 1968-07-02 Atomic Energy Commission Usa Piezomechanical locking mechanism
US3811529A (en) * 1970-04-07 1974-05-21 Schlumberger Technology Corp Acoustic logging apparatus for travel time and cement bond logging
US3827023A (en) * 1972-05-25 1974-07-30 Us Navy Piezoelectric transducer having good sensitivity over a wide range of temperature and pressure
US3781781A (en) * 1972-07-21 1973-12-25 Us Navy Piezoelectric transducer
US4546459A (en) * 1982-12-02 1985-10-08 Magnavox Government And Industrial Electronics Company Method and apparatus for a phased array transducer
US7372777B2 (en) * 2005-09-23 2008-05-13 Probe Technology Services, Inc. Sonic instrumentation apparatus and method for cement bond logging
US7414918B2 (en) * 2005-09-23 2008-08-19 Probe Technology Services, Inc. Method for normalizing signals in a cement bond logging tool
US7411864B2 (en) * 2005-09-23 2008-08-12 Probe Technology Services, Inc. Method for processing signals in a cement bong logging tool
US7911876B2 (en) * 2005-09-23 2011-03-22 Probe Technology Services, Inc. Method for initializing receiver channels in a cement bond logging tool

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2448352A (en) * 1946-03-26 1948-08-31 Sperry Prod Inc Piezoelectric crystal mounting means
US2607216A (en) * 1946-08-16 1952-08-19 Bell Telephone Labor Inc Torsional interferometer
US2507770A (en) * 1948-06-25 1950-05-16 Phillips Petroleum Co Transducer for ultrasonic waves
US2977572A (en) * 1951-12-12 1961-03-28 Bell Telephone Labor Inc Hydrophone
US2880404A (en) * 1955-05-13 1959-03-31 Harris Transducer Corp Compact resonant sonar transducer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0784845A1 (en) * 1994-10-07 1997-07-23 The Center For Innovative Technology Active control of aircraft engine inlet noise using compact sound sources and distributed error sensors
EP0784845A4 (en) * 1994-10-07 1999-11-03 Innovative Tech Center Active control of aircraft engine inlet noise using compact sound sources and distributed error sensors

Also Published As

Publication number Publication date
DE1207679B (en) 1965-12-23
US3309653A (en) 1967-03-14

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