Vibrating beam force-frequency transducer and pendulous accelera

Details Vibrating beam force-frequency transducer and pendulous accelera Vibrating beam force-frequency transducer and pendulous accelera

1989-11-28

1991-06-04

Williams, Hezron E.

Measuring and testing

Speed, velocity, or acceleration

Acceleration determination utilizing inertial element

73778, 7386254, 310346, 310338, 310321, G01L 110, G01L 126

Patent

active

050203703

ABSTRACT:
A vibrating force transducer suitable for use in a pendular accelerometer mprises a flat elongated strip of piezo-electric material having end portions arranged for being securely connected to elements which apply a force to be measured along the direction of elongation when the transducer is in service. The strip is fractionated by slits parallel along the direction of elongation and orthogonal to major faces of the strips into a central beam and lateral beams which are in a common plane, the lateral beams carrying electrode means for flexural vibration in the common plane at a resonance frequency indicative of the value of the force applied to the end portions and the central beam carrying a resistive temperature sensor.

REFERENCES:
patent: 3268789 (1966-08-01), Pintell
patent: 4215570 (1980-08-01), Eer Nisse
patent: 4479385 (1984-10-01), Koehler
patent: 4594898 (1986-06-01), Kirkman

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