FR867291A - Filtres d'ondes électriques - Google Patents

Filtres d'ondes électriques

Info

Publication number
FR867291A
FR867291A FR867291DA FR867291A FR 867291 A FR867291 A FR 867291A FR 867291D A FR867291D A FR 867291DA FR 867291 A FR867291 A FR 867291A
Authority
FR
France
Prior art keywords
electric wave
wave filters
filters
electric
wave
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 FR867291A publication Critical patent/FR867291A/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 devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/48—Coupling means therefor
    • H03H9/52—Electric coupling means

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
FR867291D 1939-07-19 1940-09-24 Filtres d'ondes électriques Expired FR867291A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US285237A US2271200A (en) 1939-07-19 1939-07-19 Wave filter

Publications (1)

Publication Number Publication Date
FR867291A true FR867291A (fr) 1941-10-10

Family

ID=23093376

Family Applications (1)

Application Number Title Priority Date Filing Date
FR867291D Expired FR867291A (fr) 1939-07-19 1940-09-24 Filtres d'ondes électriques

Country Status (3)

Country Link
US (1) US2271200A (fr)
FR (1) FR867291A (fr)
GB (1) GB535525A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1234276B (de) * 1954-06-29 1967-02-16 Gen Electric Piezoelektrische Transformations-Anordnung mit einem aus vorpolarisiertem ferroelektrischem Werkstoff bestehenden Schwingkoerper

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2470133A (en) * 1946-12-16 1949-05-17 Gasket Engineering Co Inc Multiple crystal holder
BE511127A (fr) * 1951-03-06
US2744197A (en) * 1951-05-09 1956-05-01 Globe Union Inc Frequency stabilization
US2830204A (en) * 1955-07-01 1958-04-08 Harris Transducer Corp Linear mechanical oscillator circuit element transducer
NL236717A (fr) * 1958-03-03
DE1221738B (de) * 1960-02-26 1966-07-28 Siemens Ag Elektromechanisches Filter
BE622703A (fr) * 1961-09-22
US3614485A (en) * 1969-08-05 1971-10-19 Austron Inc Electromechanical reed system
JPS5134177Y1 (fr) * 1969-09-30 1976-08-24
US3578994A (en) * 1969-10-22 1971-05-18 Dynamics Corp Massa Div Piezoelectric clamped-free beam type transducer
US3651352A (en) * 1970-12-10 1972-03-21 Branson Instr Oscillatory circuit for ultrasonic cleaning apparatus
US5493166A (en) * 1988-08-12 1996-02-20 Murata Manufacturing Co., Ltd. Vibrator and vibrating gyroscope using the same
US5874674A (en) * 1988-08-12 1999-02-23 Murata Manufacturing Co., Ltd. Vibrator including piezoelectric electrodes or detectors arranged to be non-parallel and non-perpendicular to coriolis force direction and vibratory gyroscope using the same
EP0563761B1 (fr) * 1992-03-30 1997-05-21 Murata Manufacturing Co., Ltd. Vibrateur avec des arêtes calibrés
JP3206299B2 (ja) * 1994-04-26 2001-09-10 株式会社村田製作所 圧電振動子
JPH08278146A (ja) * 1995-04-03 1996-10-22 Murata Mfg Co Ltd 振動ジャイロ
JPH11344341A (ja) * 1998-05-29 1999-12-14 Tokai Rika Co Ltd 平行平板型振動ジャイロ及び平行平板型振動ジャイロ装置
KR100704990B1 (ko) * 2005-08-08 2007-04-10 삼성전기주식회사 고정자 및 이를 이용한 세라믹스 튜브형 초음파 모터
US8519598B1 (en) * 2010-11-01 2013-08-27 Georgia Tech Research Corporation Microelectromechanical resonators having piezoelectric layers therein that support actuation and sensing through a longitudinal piezoelectric effect

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1234276B (de) * 1954-06-29 1967-02-16 Gen Electric Piezoelektrische Transformations-Anordnung mit einem aus vorpolarisiertem ferroelektrischem Werkstoff bestehenden Schwingkoerper

Also Published As

Publication number Publication date
US2271200A (en) 1942-01-27
GB535525A (en) 1941-04-11

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