FR2049073A1 - - Google Patents

Info

Publication number
FR2049073A1
FR2049073A1 FR7014829A FR7014829A FR2049073A1 FR 2049073 A1 FR2049073 A1 FR 2049073A1 FR 7014829 A FR7014829 A FR 7014829A FR 7014829 A FR7014829 A FR 7014829A FR 2049073 A1 FR2049073 A1 FR 2049073A1
Authority
FR
France
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.)
Granted
Application number
FR7014829A
Other versions
FR2049073B1 (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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch Co Ltd
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 JP3670369U external-priority patent/JPS484936Y1/ja
Application filed by Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Publication of FR2049073A1 publication Critical patent/FR2049073A1/fr
Application granted granted Critical
Publication of FR2049073B1 publication Critical patent/FR2049073B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
    • G04F5/04—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/323—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator the resonator having more than two terminals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
FR7014829A 1969-04-23 1970-04-23 Expired FR2049073B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3670369U JPS484936Y1 (fr) 1969-04-23 1969-04-23
JP3670369 1969-04-23

Publications (2)

Publication Number Publication Date
FR2049073A1 true FR2049073A1 (fr) 1971-03-26
FR2049073B1 FR2049073B1 (fr) 1974-08-09

Family

ID=26375783

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7014829A Expired FR2049073B1 (fr) 1969-04-23 1970-04-23

Country Status (4)

Country Link
US (1) US3657667A (fr)
DE (1) DE2019580A1 (fr)
FR (1) FR2049073B1 (fr)
GB (1) GB1255905A (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4925380A (fr) * 1972-06-21 1974-03-06
US4314174A (en) * 1980-03-25 1982-02-02 Litton Systems, Inc. Piezoelectric transducer drive having temperature compensation
US4340458A (en) 1980-06-02 1982-07-20 Joslin Diabetes Center, Inc. Glucose sensor
GB2126447A (en) * 1982-09-03 1984-03-21 Combined Tech Corp Plc Real-time Fourier transforming transducer and applications thereof
DE3604079A1 (de) * 1986-02-08 1987-08-13 Teldix Gmbh Einrichtung zur erzeugung von drehschwingungen, insbesondere fuer ringlasergyroskope
GB8806214D0 (en) * 1988-03-16 1988-04-13 Avery Ltd W & T Vibrating force sensor
JPH0575376A (ja) * 1991-09-13 1993-03-26 Murata Mfg Co Ltd 圧電音叉型共振子
US5275055A (en) * 1992-08-31 1994-01-04 Honeywell Inc. Resonant gauge with microbeam driven in constant electric field
US5511427A (en) * 1993-07-21 1996-04-30 Honeywell Inc. Cantilevered microbeam temperature sensor
US5417115A (en) * 1993-07-23 1995-05-23 Honeywell Inc. Dielectrically isolated resonant microsensors
TW567664B (en) * 2001-10-09 2003-12-21 Ebauchesfabrik Eta Ag Piezoelectric resonator and assembly comprising the same enclosed in a case
JP2021005783A (ja) * 2019-06-26 2021-01-14 セイコーエプソン株式会社 振動片、電子機器、および移動体

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3462939A (en) * 1965-02-12 1969-08-26 Tokei Kk Mechanical vibrator for timepiece

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3517230A (en) * 1968-08-16 1970-06-23 Melpar Inc Integral reed tuning fork

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3462939A (en) * 1965-02-12 1969-08-26 Tokei Kk Mechanical vibrator for timepiece

Also Published As

Publication number Publication date
US3657667A (en) 1972-04-18
DE2019580A1 (de) 1970-11-05
FR2049073B1 (fr) 1974-08-09
GB1255905A (en) 1971-12-01

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Legal Events

Date Code Title Description
ST Notification of lapse