CH649439GA3 - - Google Patents

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Publication number
CH649439GA3
CH649439GA3 CH307182A CH307182A CH649439GA3 CH 649439G A3 CH649439G A3 CH 649439GA3 CH 307182 A CH307182 A CH 307182A CH 307182 A CH307182 A CH 307182A CH 649439G A3 CH649439G A3 CH 649439GA3
Authority
CH
Switzerland
Prior art keywords
tuning fork
tines
electrodes
disclosed
drive
Prior art date
Application number
CH307182A
Other languages
French (fr)
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 filed Critical
Publication of CH649439GA3 publication Critical patent/CH649439GA3/fr

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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
    • H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/21—Crystal tuning forks
    • H03H9/215—Crystal tuning forks consisting of quartz

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

An improved piezoelectric tuning fork (12) is disclosed in which the electrodes which drive the tuning fork (30, 32, 34; 36, 38, 40; 42, 48, 50; 52, 54, 56; 58, 60, 62; 64, 66, 68) are positioned along the tines (16, 18) so as to optimize operation at the second overtone frequency.
CH307182A 1981-05-27 1982-05-18 CH649439GA3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/267,814 US4415827A (en) 1981-05-27 1981-05-27 Microresonator of tuning fork configuration operating at its second overtone frequency

Publications (1)

Publication Number Publication Date
CH649439GA3 true CH649439GA3 (en) 1985-05-31

Family

ID=23020235

Family Applications (1)

Application Number Title Priority Date Filing Date
CH307182A CH649439GA3 (en) 1981-05-27 1982-05-18

Country Status (3)

Country Link
US (1) US4415827A (en)
JP (1) JPS57199311A (en)
CH (1) CH649439GA3 (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4469979A (en) * 1983-05-27 1984-09-04 Statek Corporation Microresonator of double-ended tuning fork configuration
US4531073A (en) * 1983-05-31 1985-07-23 Ohaus Scale Corporation Piezoelectric crystal resonator with reduced impedance and sensitivity to change in humidity
US4757228A (en) * 1987-01-27 1988-07-12 The Foxboro Company Double-tuning-fork resonator with means to sense tine breakage
US5285127A (en) * 1989-11-30 1994-02-08 New Sd, Inc. Single mode resonator and method
US5179028A (en) * 1990-04-20 1993-01-12 Hughes Aircraft Company Antibody coated crystal chemical sensor
JPH0575376A (en) * 1991-09-13 1993-03-26 Murata Mfg Co Ltd Piezoelectric tuning fork resonator
US5336854A (en) * 1992-04-03 1994-08-09 Weigh-Tronix, Inc. Electronic force sensing load cell
US5391844A (en) * 1992-04-03 1995-02-21 Weigh-Tronix Inc Load cell
US5313023A (en) * 1992-04-03 1994-05-17 Weigh-Tronix, Inc. Load cell
US5442146A (en) * 1992-04-03 1995-08-15 Weigh-Tronix, Inc. Counting scale and load cell assembly therefor
US5367217A (en) * 1992-11-18 1994-11-22 Alliedsignal Inc. Four bar resonating force transducer
US5450762A (en) * 1992-12-17 1995-09-19 Alliedsignal Inc. Reactionless single beam vibrating force sensor
DE4332944A1 (en) * 1993-09-28 1995-03-30 Bosch Gmbh Robert Sensor with a quartz tuning fork
US5604336A (en) * 1995-03-08 1997-02-18 Weigh-Tronix, Inc. Load cell with composite end beams having portions with different elastic modulus
GB2301671B (en) * 1995-05-30 1999-10-13 Allied Signal Inc Angular rate sensor electronic balance
GB2301669B (en) * 1995-05-30 1999-11-10 Allied Signal Inc Angular rate sensor misalignment correction
US7523537B1 (en) 2000-07-13 2009-04-28 Custom Sensors & Technologies, Inc. Method of manufacturing a tuning fork with reduced quadrature errror and symmetrical mass balancing
US6497152B2 (en) 2001-02-23 2002-12-24 Paroscientific, Inc. Method for eliminating output discontinuities in digital pressure transducers and digital pressure transducer employing same
US6595054B2 (en) 2001-05-14 2003-07-22 Paroscientific, Inc. Digital angular rate and acceleration sensor
US7071794B2 (en) * 2002-03-06 2006-07-04 Piedek Technical Laboratory Quartz crystal resonator, unit having resonator, oscillator having unit, electronic apparatus having oscillator, and method for manufacturing electronic apparatus
US6826960B2 (en) 2002-08-07 2004-12-07 Quartz Sensors, Inc. Triaxial acceleration sensor
WO2005125006A1 (en) * 2004-06-21 2005-12-29 Citizen Watch Co., Ltd. Quartz device and quartz device manufacturing method
JP4414987B2 (en) * 2006-07-27 2010-02-17 日本電波工業株式会社 Piezoelectric vibrator manufacturing method, piezoelectric vibrator and electronic component
WO2009143492A1 (en) 2008-05-23 2009-11-26 Statek Corporation Piezoelectric resonator
US8143768B2 (en) * 2009-06-26 2012-03-27 Hanson Richard A Miniature mechanical resonator device
JP5633319B2 (en) * 2010-03-17 2014-12-03 セイコーエプソン株式会社 Vibrating piece, sensor element, sensor and electronic device
US11474126B2 (en) 2020-03-05 2022-10-18 Quartz Seismic Sensors, Inc. High precision rotation sensor and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5133367U (en) * 1974-07-05 1976-03-11
JPS54111297A (en) * 1978-02-21 1979-08-31 Seiko Instr & Electronics Ltd Compound crystal oscillator
JPS5513551A (en) * 1978-07-14 1980-01-30 Seiko Instr & Electronics Ltd Crystal vibrator
JPS5760720A (en) * 1980-09-26 1982-04-12 Seiko Instr & Electronics Ltd Tuning fork type quartz vibrator

Also Published As

Publication number Publication date
JPS57199311A (en) 1982-12-07
US4415827A (en) 1983-11-15

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