FR866095A - Cristaux piézoélectriques - Google Patents

Cristaux piézoélectriques

Info

Publication number
FR866095A
FR866095A FR866095DA FR866095A FR 866095 A FR866095 A FR 866095A FR 866095D A FR866095D A FR 866095DA FR 866095 A FR866095 A FR 866095A
Authority
FR
France
Prior art keywords
piezoelectric crystals
piezoelectric
crystals
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
Other languages
English (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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR866095A publication Critical patent/FR866095A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/56—Monolithic crystal filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02007—Details of bulk acoustic wave devices
    • H03H9/02062—Details relating to the vibration mode
    • H03H9/0207—Details relating to the vibration mode the vibration mode being harmonic
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02007—Details of bulk acoustic wave devices
    • H03H9/02157—Dimensional parameters, e.g. ratio between two dimension parameters, length, width or thickness
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/05—Holders or supports
    • H03H9/09—Elastic or damping supports
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
    • H03H9/19—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator consisting of quartz

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
FR866095D 1939-06-09 1940-06-08 Cristaux piézoélectriques Expired FR866095A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US278237A US2306909A (en) 1939-06-09 1939-06-09 Piezoelectric crystal apparatus

Publications (1)

Publication Number Publication Date
FR866095A true FR866095A (fr) 1941-06-16

Family

ID=23064215

Family Applications (1)

Application Number Title Priority Date Filing Date
FR866095D Expired FR866095A (fr) 1939-06-09 1940-06-08 Cristaux piézoélectriques

Country Status (3)

Country Link
US (1) US2306909A (fr)
CH (1) CH225444A (fr)
FR (1) FR866095A (fr)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2574257A (en) * 1947-01-11 1951-11-06 Cambridge Thermionic Corp Method for manufacturing piezoelectric crystals free of conflicting modes of vibration
US2799789A (en) * 1949-04-06 1957-07-16 John M Wolfskill Piezoelectric crystal apparatus and method of making the same
US2771561A (en) * 1952-03-17 1956-11-20 Pye Ltd Quartz crystal units
US2886787A (en) * 1953-07-30 1959-05-12 Donald E Johnson Piezoelectric device
US2911484A (en) * 1954-06-28 1959-11-03 Gen Electric Electro-acoustic transducer
US3396327A (en) * 1961-12-27 1968-08-06 Toyotsushinki Kabushiki Kaisha Thickness shear vibration type, crystal electromechanical filter
GB1104383A (en) * 1964-05-30 1968-02-28 Matsushita Electric Industrial Co Ltd Piezoelectric ceramic resonator devices
GB1401042A (en) * 1972-05-30 1975-07-16 Suisse Horlogerie Quartz crystal resonator
US3792294A (en) * 1972-10-19 1974-02-12 Bell Telephone Labor Inc Rectangular at-cut crystal plate
US4071797A (en) * 1976-01-20 1978-01-31 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Quartz piezo-electric element vibrating in a coupled mode
JPS5291673A (en) * 1976-01-29 1977-08-02 Seiko Instr & Electronics Ltd Thickness sliding vibrator
DE2703335A1 (de) * 1976-01-29 1977-08-04 Seiko Instr & Electronics Piezoelektrischer schwinger mit dickenscherungsschwingung
DE2641571B1 (de) * 1976-09-15 1977-06-08 Siemens Ag Als obertonquarz verwendeter dickenscherungsschwinger
US4076987A (en) * 1976-12-10 1978-02-28 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Multiple resonator or filter vibrating in a coupled mode
JPS5479581A (en) * 1977-12-07 1979-06-25 Seiko Instr & Electronics Ltd Thickness-width slide crystal vibrator
FR2426338A1 (fr) * 1978-05-19 1979-12-14 Seiko Instr & Electronics Resonateur a quartz rectangulaire en coupe at
JPS5530284A (en) * 1978-08-25 1980-03-04 Seiko Instr & Electronics Ltd Thickness sliding flection crystal vibrator
JPS5546633A (en) * 1978-09-28 1980-04-01 Seiko Instr & Electronics Ltd Thickness-sliding inflection crystal vibrator
JPS5912584Y2 (ja) * 1979-09-11 1984-04-16 東京電波株式会社 水晶感温トランスジユ−サ
US4604543A (en) * 1984-11-29 1986-08-05 Hitachi, Ltd. Multi-element ultrasonic transducer
US9463332B2 (en) 2002-02-27 2016-10-11 CAMS Medical Instruments, Inc. Personal tuner with biosensor and bioscanner
US7077857B1 (en) 2002-02-27 2006-07-18 Crosby Advanced Medical Systems, Inc. Pulse Cam
US7883534B1 (en) 2002-02-27 2011-02-08 CAMS Medical Instruments, Inc. Personal tuner
US9987185B1 (en) 2002-02-27 2018-06-05 CAMS Medical Instruments, Inc. Transducer devices, apparatus, systems and methods of operation

Also Published As

Publication number Publication date
CH225444A (fr) 1943-01-31
US2306909A (en) 1942-12-29

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