GB665100A - Method of manufacturing piezoelectric crystal devices - Google Patents

Method of manufacturing piezoelectric crystal devices

Info

Publication number
GB665100A
GB665100A GB28242/47A GB2824247A GB665100A GB 665100 A GB665100 A GB 665100A GB 28242/47 A GB28242/47 A GB 28242/47A GB 2824247 A GB2824247 A GB 2824247A GB 665100 A GB665100 A GB 665100A
Authority
GB
United Kingdom
Prior art keywords
rim
base
piezo
crystals
matter
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
GB28242/47A
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.)
Brush Development Co
Original Assignee
Brush Development Co
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 Brush Development Co filed Critical Brush Development Co
Publication of GB665100A publication Critical patent/GB665100A/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
    • B06B1/0644—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

665,100. Piezo-electric instruments. BRUSH DEVELOPMENT CO. Oct. 22, 1947 [Nov. 30, 1946], No. 28242/47. Class 40 (iv). [Also in Group XL (b)] A piezo-electric instrument is made by fixing one end of a crystal element to a flat rigid base and working the free end of the crystal until it is parallel to the base or level with the adjacent end of the housing of the instrument. As shown, the crystals 33 are arranged in two rings and when affixed to the base project above the rim 34 of the cup-shaped housing. The projecting portions are then ground until they are level with the rim and a diaphragm 41 is cemented to the levelled surface and secured to the rim by a sealing ring 42. Electrodes 35 and 36 of the crystals are connected by leads 37 and 38. The Specification as open to inspection under Sect. 91 also includes the subject-matter of Specifications 665,189 and 665,190. [Group XL (b)]. This subject-matter does not appear in the Specification as accepted.
GB28242/47A 1942-07-30 1947-10-22 Method of manufacturing piezoelectric crystal devices Expired GB665100A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US452906A US2413462A (en) 1942-07-30 1942-07-30 Transducer
US665190XA 1944-06-02 1944-06-02
US665100XA 1946-11-30 1946-11-30

Publications (1)

Publication Number Publication Date
GB665100A true GB665100A (en) 1952-01-16

Family

ID=27370984

Family Applications (3)

Application Number Title Priority Date Filing Date
GB19864/50A Expired GB665189A (en) 1942-07-30 1947-10-22 Method of manufacturing piezoelectric crystal devices
GB28242/47A Expired GB665100A (en) 1942-07-30 1947-10-22 Method of manufacturing piezoelectric crystal devices
GB19865/50A Expired GB665190A (en) 1942-07-30 1947-10-22 Method of manufacturing piezoelectric crystal devices

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB19864/50A Expired GB665189A (en) 1942-07-30 1947-10-22 Method of manufacturing piezoelectric crystal devices

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB19865/50A Expired GB665190A (en) 1942-07-30 1947-10-22 Method of manufacturing piezoelectric crystal devices

Country Status (2)

Country Link
US (1) US2413462A (en)
GB (3) GB665189A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2477246A (en) * 1945-05-16 1949-07-26 Bell Telephone Labor Inc Submarine signaling device
US2605346A (en) * 1945-09-18 1952-07-29 Roland M Goglick Waterproof microphone
US2546313A (en) * 1946-12-26 1951-03-27 Brush Dev Co Testing instrument for acoustic devices
US2613261A (en) * 1948-12-08 1952-10-07 Massa Frank Underwater transducer
US2689947A (en) * 1949-09-26 1954-09-21 William J Fry Variable resonant frequency ultrasonic generator
US3090939A (en) * 1953-05-13 1963-05-21 Massa Frank Tessellated electromechanical transducer element
US2842686A (en) * 1954-03-03 1958-07-08 Musser C Walton Piezoelectric gage
US3054982A (en) * 1959-02-16 1962-09-18 Robert J Kieser Hydrostatic pressure transducer
US3149301A (en) * 1959-09-01 1964-09-15 Charles E Green Electroacoustic transducer
US3221296A (en) * 1960-01-21 1965-11-30 Allen R Milne Spherical hydrophone
US3469445A (en) * 1967-07-20 1969-09-30 United Aircraft Corp Gas flow measuring system
DK148428C (en) * 1983-02-03 1985-11-25 Grundfos As LEVEL DETECTOR WITH A PIEZOELECTRIC CRYSTAL
US9392375B2 (en) * 2012-08-10 2016-07-12 Kyocera Corporation Acoustic generator, acoustic generation device, and electronic device

Also Published As

Publication number Publication date
US2413462A (en) 1946-12-31
GB665190A (en) 1952-01-16
GB665189A (en) 1952-01-16

Similar Documents

Publication Publication Date Title
GB665100A (en) Method of manufacturing piezoelectric crystal devices
GB411851A (en) Improvements in and relating to sound or like air wave echo apparatus
GB573687A (en) Improvements in or relating to piezo-electric acoustic devices
GB657632A (en) Improvements in or relating to mountings for electromechanical transducer elements
GB665351A (en) Improvements in or relating to hydrostatically sensitive piezoelectric transducer
CH262826A (en) Deformable diaphragm differential pressure indicator device.
GB554662A (en) Improvements in or relating to flexible mountings for instruments and other apparatus
GB586675A (en) Improvements in vibratory hygienic instruments, more particularly for the hygiene of the mouth
GB598918A (en) Watertight watchcase
GB516002A (en) Improvements in or relating to flexible mountings for measuring instruments and other apparatus
USD132288S (en) Design for an eye testing instrument
GB717222A (en) Improvements in or relating to transducers having an adjustable electrical impedance
GB693204A (en) Improvement in electromechanical transducer unit
GB527592A (en) Improvements in and relating to indicating means for measuring and like instruments
GB588533A (en) Improvements in or relating to loose covers for chairs, settees and the like
CA491932A (en) Pressure-sensitive instruments of the flexible chamber type
GB292254A (en) Improvements in or relating to charge-indicating devices for use with electrical accumulators
GB580066A (en) Improvements relating to water meters
AU126538B2 (en) Improvements in crystal contacts ofwhich one element is mainly silicon
CA414305A (en) Piezo-electric crystal element
GB434727A (en) Improvements in or relating to clock and other indicating instruments
AU716642A (en) Improvements in crystal contacts ofwhich one element is mainly silicon
CA416355A (en) Piezoelectric crystal element
CA413894A (en) Piezo-electric quartz element
CA414306A (en) Piezo-electric quartz element