FR817131A - Support devices for piezoelectric crystals - Google Patents

Support devices for piezoelectric crystals

Info

Publication number
FR817131A
FR817131A FR817131DA FR817131A FR 817131 A FR817131 A FR 817131A FR 817131D A FR817131D A FR 817131DA FR 817131 A FR817131 A FR 817131A
Authority
FR
France
Prior art keywords
support devices
piezoelectric crystals
piezoelectric
crystals
devices
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
French (fr)
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 FR817131A publication Critical patent/FR817131A/en
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 devices; Electromechanical resonators
    • H03H9/0023—Balance-unbalance or balance-balance networks
    • H03H9/0095—Balance-unbalance or balance-balance networks using bulk acoustic wave devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/05—Holders; Supports
    • H03H9/0504—Holders; Supports for bulk acoustic wave devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/21—Crystal tuning forks
    • H03H9/215—Crystal tuning forks consisting of quartz
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; 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 devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/58—Multiple crystal filters

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Surgical Instruments (AREA)
  • Electrotherapy Devices (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
FR817131D 1936-11-20 1936-12-31 Support devices for piezoelectric crystals Expired FR817131A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3180536A GB467724A (en) 1936-11-20 1936-11-20 Piezo electric crystal apparatus

Publications (1)

Publication Number Publication Date
FR817131A true FR817131A (en) 1937-08-26

Family

ID=10328672

Family Applications (1)

Application Number Title Priority Date Filing Date
FR817131D Expired FR817131A (en) 1936-11-20 1936-12-31 Support devices for piezoelectric crystals

Country Status (4)

Country Link
DE (1) DE750584C (en)
FR (1) FR817131A (en)
GB (1) GB467724A (en)
NL (1) NL49647C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2363825A1 (en) * 1976-09-07 1978-03-31 Seikosha Kk Quartz oscillator for electronic timepiece - comprising quartz chip supported by wires running parallel to its planar faces

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE753524C (en) * 1940-08-02 1952-10-27 Siemens & Halske A G Piezoelectric oscillating crystal, which is mounted between cutting edges, points or balls
FR2257153B1 (en) * 1974-01-09 1978-06-30 Suwa Seikosha Kk

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE484340C (en) * 1927-03-30 1929-10-14 Lorenz Akt Ges C Quartz oscillator
US2005083A (en) * 1927-07-07 1935-06-18 Rca Corp Filter
DE494716C (en) * 1927-07-08 1930-04-29 Elektrotechnischer Trust Der S Piezoelectric vibration generator
DE596744C (en) * 1932-07-22 1934-05-09 Telefunken Gmbh Quartz crystal arrangement
US1978188A (en) * 1933-01-06 1934-10-23 Bell Telephone Labor Inc Piezoelectric crystal apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2363825A1 (en) * 1976-09-07 1978-03-31 Seikosha Kk Quartz oscillator for electronic timepiece - comprising quartz chip supported by wires running parallel to its planar faces

Also Published As

Publication number Publication date
GB467724A (en) 1937-06-22
NL49647C (en)
DE750584C (en) 1945-01-19

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