GB716065A - Improvements in or relating to transducers - Google Patents

Improvements in or relating to transducers

Info

Publication number
GB716065A
GB716065A GB11834/52A GB1183452A GB716065A GB 716065 A GB716065 A GB 716065A GB 11834/52 A GB11834/52 A GB 11834/52A GB 1183452 A GB1183452 A GB 1183452A GB 716065 A GB716065 A GB 716065A
Authority
GB
United Kingdom
Prior art keywords
regions
give
mass
necessary
diameter
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
GB11834/52A
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 Aviation Corp
Original Assignee
Bendix Aviation 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
Priority claimed from US228956A external-priority patent/US2774892A/en
Application filed by Bendix Aviation Corp filed Critical Bendix Aviation Corp
Publication of GB716065A publication Critical patent/GB716065A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • B06B1/0611—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 in a pile
    • 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
    • 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
    • B06B1/0655—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 of cylindrical shape
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/58—Tubes for storage of image or information pattern or for conversion of definition of television or like images, i.e. having electrical input and electrical output
    • H01J31/60—Tubes for storage of image or information pattern or for conversion of definition of television or like images, i.e. having electrical input and electrical output having means for deflecting, either selectively or sequentially, an electron ray on to separate surface elements of the screen
    • H01J31/62—Tubes for storage of image or information pattern or for conversion of definition of television or like images, i.e. having electrical input and electrical output having means for deflecting, either selectively or sequentially, an electron ray on to separate surface elements of the screen with separate reading and writing rays

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

716,065. Piezo-electric instruments. BENDIX AVIATION CORPORATION. May 9, 1952 [May 29, 1951], No. 11834/52. Class 40 (4) In an electro-mechanical vibrator having an annular radially vibratile element 13 containing electro-mechanically responsive material, the element has regions 20 of greater mass than the intervening regions equally spaced around its circumference so that the tube diameter necessary for a particular wavelength is reduced. The ceramic crystal vibrator 13 is mounted together with a solid backing member 16 in a mass of sound insulating material 17. The casing 10 has a rubber end, cap 11 and the space between the rubber end cap and the backing member 16 is filled with a fluid such as castor oil having sound propagation characteristics similar to water, so that the radial vibrations of the inner face of the ring are transmitted through the rubber cap. The regions of greater mass may carry additional weights such as solder which may be added to the non-working surface or inserted in recesses to give the ring a constant cross-section, or alternatively the ceramic crystals themselves may be given additional mass in the spaced regions. The reduction in diameter of a tube necessary to give a predetermined wavelength permits the construction of an array of vibrators to produce a beam pattern which was previously unobtainable owing to the fact that the spacing of tube centres necessary to give the desired pattern was less than the diameter of the tubes. Such an array is described with reference to Fig. 7 (not shown).
GB11834/52A 1951-03-06 1952-05-09 Improvements in or relating to transducers Expired GB716065A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US21414451A 1951-03-06 1951-03-06
US228956A US2774892A (en) 1951-05-29 1951-05-29 Annular vibrator with lumped loading
US272206A US2787777A (en) 1951-03-06 1952-02-18 Ceramic transducer having stacked elements

Publications (1)

Publication Number Publication Date
GB716065A true GB716065A (en) 1954-09-29

Family

ID=32329776

Family Applications (4)

Application Number Title Priority Date Filing Date
GB4644/52A Expired GB718203A (en) 1951-03-06 1952-02-21 Ceramic transducer for underwater sound transmission and reception
GB18976/53A Expired GB718260A (en) 1951-03-06 1952-02-21 Ceramic transducer for underwater sound transmission and reception
GB11834/52A Expired GB716065A (en) 1951-03-06 1952-05-09 Improvements in or relating to transducers
GB3458/53A Expired GB726330A (en) 1951-03-06 1953-02-06 Improvements in or relating to ceramic transducers for underwater transmission and reception of sound

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB4644/52A Expired GB718203A (en) 1951-03-06 1952-02-21 Ceramic transducer for underwater sound transmission and reception
GB18976/53A Expired GB718260A (en) 1951-03-06 1952-02-21 Ceramic transducer for underwater sound transmission and reception

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB3458/53A Expired GB726330A (en) 1951-03-06 1953-02-06 Improvements in or relating to ceramic transducers for underwater transmission and reception of sound

Country Status (4)

Country Link
US (2) US2787777A (en)
BE (3) BE517616A (en)
FR (3) FR1054912A (en)
GB (4) GB718203A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1058410B (en) * 1955-07-13 1959-05-27 Bendix Aviat Corp Transmitter with directional effect from a grouping of magnetostrictive vibrating devices

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3258739A (en) * 1966-06-28 Hurley etal hydrophones
DE1113400B (en) * 1953-08-14 1961-08-31 Bendix Corp Transmitter for the conversion of sound waves in a liquid medium into electrical waves and vice versa
US2783449A (en) * 1953-08-28 1957-02-26 Texas Co Seismic velocity measurement
US3018466A (en) * 1955-10-21 1962-01-23 Harris Transducer Corp Compensated hydrophone
US3019660A (en) * 1956-04-26 1962-02-06 Gulton Ind Inc Ultrasonic transducer
US3094636A (en) * 1956-06-15 1963-06-18 Bendix Corp Underwater transducer
US3068446A (en) * 1958-08-21 1962-12-11 Stanley L Ehrlich Tubular electrostrictive transducer with spaced electrodes and loading masses
US3058014A (en) * 1958-09-08 1962-10-09 Bendix Corp Apparatus for generating sonic vibrations in liquids
US3079584A (en) * 1959-10-23 1963-02-26 Claude C Sims High pressure piezoelectric hydrophone with tungsten backing plate
US3243767A (en) * 1962-04-30 1966-03-29 Paul M Kendig Electroacoustic transducer for detection of low level acoustic signals over a broad frequency range
US3230503A (en) * 1962-06-22 1966-01-18 Jr Jack Elliot Transducer
US3242723A (en) * 1962-09-27 1966-03-29 Dwight J Evans Ultrasonic transducer
US3277451A (en) * 1963-11-21 1966-10-04 Edwin J Parssinen Wide angle broad band hydrophone array
US3319219A (en) * 1965-03-29 1967-05-09 Dynamics Corp Massa Div Electroacoustic transducer
US3337843A (en) * 1965-12-20 1967-08-22 Paul M Kendig Underwater transducer array for deep submergence
US3336573A (en) * 1966-09-14 1967-08-15 Texaco Inc Crystal pressure sensitive geophones for use in soft earth
US3453456A (en) * 1966-10-27 1969-07-01 Trw Inc Ultrasonic transducer
GB1208382A (en) * 1968-03-23 1970-10-14 Ferranti Ltd Improvements relating to semiconductor strain transducers
US3497727A (en) * 1968-03-28 1970-02-24 Westinghouse Electric Corp Multilayer thin film piezoelectric transducers
US3543058A (en) * 1969-11-10 1970-11-24 Westinghouse Electric Corp Piezoelectric transducer
US4156228A (en) * 1977-07-26 1979-05-22 Eg&G International, Inc. Acoustic transducer with acoustic isolating mounting base
US4477783A (en) * 1982-08-19 1984-10-16 New York Institute Of Technology Transducer device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1450246A (en) * 1920-01-28 1923-04-03 Walter G Cady Piezo-electric resonator
US2233992A (en) * 1938-01-03 1941-03-04 Gulf Research Development Co Method of and apparatus for surveying wells
US2271200A (en) * 1939-07-19 1942-01-27 Bell Telephone Labor Inc Wave filter
US2405187A (en) * 1941-11-07 1946-08-06 Submarine Signal Co Piezoelectric transducer
US2404391A (en) * 1942-02-19 1946-07-23 Bell Telephone Labor Inc Prismatic and high power compressional-wave radiator and receiver
US2473354A (en) * 1942-11-20 1949-06-14 Submarine Signal Co Device for transmitting and receiving compressional waves
US2426650A (en) * 1943-12-27 1947-09-02 Bell Telephone Labor Inc Method of soldering a terminal to a piezoelectric crystal
US2497901A (en) * 1944-08-18 1950-02-21 Bell Telephone Labor Inc Magnetostrictive transmitter
US2520938A (en) * 1944-10-07 1950-09-05 Klein Elias Tourmaline crystal transducer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1058410B (en) * 1955-07-13 1959-05-27 Bendix Aviat Corp Transmitter with directional effect from a grouping of magnetostrictive vibrating devices

Also Published As

Publication number Publication date
US2733423A (en) 1956-01-31
BE511127A (en)
GB718260A (en) 1954-11-10
US2787777A (en) 1957-04-02
BE517616A (en)
BE509494A (en)
GB726330A (en) 1955-03-16
FR63798E (en) 1955-10-03
GB718203A (en) 1954-11-10
FR63717E (en) 1955-10-03
FR1054912A (en) 1954-02-15

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