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GB1144841A - Tuning fork digital accelerometer - Google Patents

Tuning fork digital accelerometer

Info

Publication number
GB1144841A
GB1144841A GB3709466A GB3709466A GB1144841A GB 1144841 A GB1144841 A GB 1144841A GB 3709466 A GB3709466 A GB 3709466A GB 3709466 A GB3709466 A GB 3709466A GB 1144841 A GB1144841 A GB 1144841A
Authority
GB
United Kingdom
Prior art keywords
tines
acceleration
pair
supported
frequencies
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
GB3709466A
Inventor
Hamilton Southworth
John Callender Stiles
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.)
General Precision Systems Inc
Original Assignee
General Precision Systems Inc
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 to US236107A priority Critical patent/US3269192A/en
Application filed by General Precision Systems Inc filed Critical General Precision Systems Inc
Priority to DE1966G0047719 priority patent/DE1296433B/en
Priority to GB3709466A priority patent/GB1144841A/en
Priority to FR74916A priority patent/FR1497638A/en
Publication of GB1144841A publication Critical patent/GB1144841A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/097—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by vibratory elements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

1,144,841. Measuring acceleration electrically. GENERAL PRECISION SYSTEMS Inc. Aug.18, 1966, No. 37094/66. Heading G1N. A vibrating wire accelerometer comprises two similar wire assemblies caused to vibrate at their natural frequencies, supported coaxially by inertia masses, whereby acceleration in the axial direction produces a differential change in vibration frequencies which is indicative of acceleration. As shown Fig. 2, two inertial masses 28, 30 are supported centrally by metal strips 32, 34 in a cylindrical housing 22. One pair of ferromagnetic tines 40 is supported between mass 28 and the housing end-face 24, and a second pair of tines 42 between mass 30 and the other end-face 26. Driving coil 60 and pick-up coils 64, 66 are associated with tines 40 in an amplifier circuit 80 Fig. 4 so that the tines vibrate at their resonant frequency Wo, a similar circuit being associated with tines 42. When the assembly is subjected to an axial acceleration the tensions in the tines vary differentially to charge the frequencies to W 1 and W 2 , and these are mixed at 84 to give (W 1 + W 2 ) and (W 1 - W 2 which are multiplied together at 96 to give (W 1 <SP>2</SP> - W 2 <SP>2</SP>), which is proportional to the applied acceleration. In another embodiment Figs. 5-10 (not shown), only one pair of tines may be used, made of goldplated quartz and vibrated electrostatically.
GB3709466A 1962-11-07 1966-08-18 Tuning fork digital accelerometer Expired GB1144841A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US236107A US3269192A (en) 1962-11-07 1962-11-07 Tuning fork digital accelerometer
DE1966G0047719 DE1296433B (en) 1966-08-18 1966-08-18 Accelerometer
GB3709466A GB1144841A (en) 1966-08-18 1966-08-18 Tuning fork digital accelerometer
FR74916A FR1497638A (en) 1966-08-18 1966-09-01 Digital accelerometer with tuning fork

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3709466A GB1144841A (en) 1966-08-18 1966-08-18 Tuning fork digital accelerometer

Publications (1)

Publication Number Publication Date
GB1144841A true GB1144841A (en) 1969-03-12

Family

ID=10393674

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3709466A Expired GB1144841A (en) 1962-11-07 1966-08-18 Tuning fork digital accelerometer

Country Status (1)

Country Link
GB (1) GB1144841A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133152A (en) * 1983-01-06 1984-07-18 Sundstrand Corp Accelerometer with beam resonator force transducer
GB2133153A (en) * 1983-01-06 1984-07-18 Sundstrand Data Control Method for determining acceleration
GB2183835A (en) * 1985-12-02 1987-06-10 Singer Co Dynamic system analysis in a vibrating beam accelerometer
CN110426113A (en) * 2019-07-23 2019-11-08 北京华特克林科技有限公司 Pre-amplification circuit of truck scale frequency modulation information processor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133152A (en) * 1983-01-06 1984-07-18 Sundstrand Corp Accelerometer with beam resonator force transducer
GB2133153A (en) * 1983-01-06 1984-07-18 Sundstrand Data Control Method for determining acceleration
GB2183835A (en) * 1985-12-02 1987-06-10 Singer Co Dynamic system analysis in a vibrating beam accelerometer
CN110426113A (en) * 2019-07-23 2019-11-08 北京华特克林科技有限公司 Pre-amplification circuit of truck scale frequency modulation information processor

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