Piezoelectric vibrating beam force sensor

Details Piezoelectric vibrating beam force sensor Piezoelectric vibrating beam force sensor

2011-06-14

2011-06-14

Williams, Hezron (Department: 2856)

Measuring and testing

Dynamometers

Responsive to force

C073S579000, C073S778000

Reexamination Certificate

active

07958788

ABSTRACT:
A force sensor (10) is forced from a vibrating beam (11), an excitation piezoelectric device (12) to cause a vibration in the beam at its resonate frequency and a measurement piezoelectric device (12) to measure the frequencies being indication of the force applied to the beam (11). The excitation and measurement piezoelectric devices (12) are attached to the beam adjacent to each other at one end of the beam (11).

REFERENCES:
patent: 4299122 (1981-11-01), Ueda et al.
patent: 5113698 (1992-05-01), Grlj et al.
patent: 5550516 (1996-08-01), Burns et al.
patent: 58 097610 (1983-06-01), None
patent: 2004/070335 (2004-08-01), None
International Search Report issued regarding International Application No. PCT/GB2006/003174 (Nov. 2, 2006).
Written Opinion of the International Searching Authority issued regarding International Application No. PCT/GB2006/003174 (Nov. 2, 2006).

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