Vibration sensing method and apparatus therefor

Details Vibration sensing method and apparatus therefor Vibration sensing method and apparatus therefor

1995-11-28

1997-12-30

Williams, Hezron E.

Measuring and testing

Vibration

By mechanical waves

340682, 340683, 364707, 73660, 73DIG4, 310339, G01L 100, G01H 1300

Patent

active

057032955

ABSTRACT:
A vibration sensing apparatus including an acceleration sensor 2 for outputting a sensing signal corresponding to a vibrating acceleration, a level discriminator 3 for generating an output when the output level of the signal from the acceleration sensor 2 exceeds a preset reference level, a display unit 4 for displaying the output of the level discriminator 3, a piezoelectric ceramic power generating unit 5 using piezoelectric ceramics for generating a charge when it is subjected to vibration, and a conversion unit 6 for converting the charge generated by the piezoelectric ceramic power generating unit 5 into DC power, the DC power being supplied to the level discriminator and to the display unit as power to be consumed by them.

REFERENCES:
patent: H372 (1987-11-01), Campbell
patent: 4237454 (1980-12-01), Meyer
patent: 4510484 (1985-04-01), Snyder
patent: 5578766 (1996-11-01), Kondo
patent: 5578889 (1996-11-01), Epstein

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