Low frequency seismic accelerometer

Details Low frequency seismic accelerometer Low frequency seismic accelerometer

1997-12-22

2000-03-21

Williams, Hezron

Measuring and testing

Speed, velocity, or acceleration

Acceleration determination utilizing inertial element

310329, 310333, G01P 1509

Patent

active

060389249

ABSTRACT:
The present invention is a seismic accelerometer to measure and record low frequencies and large dynamic measurement ranges. The accelerometer comprises at least one directional piezoelectric sensing element and an integrated circuit. Each directional piezoelectric sensing element senses inertial forces applied to the accelerometer from a particular direction, X, Y or Z, and generates a force voltage signal in response to the inertial forces applied to the accelerometer. The sensitivity of each directional piezoelectric sensing element is in direct proportion to the sensitivity of the integrated circuit and the mass of a first mass. The integrated circuit system receives the force voltage signal from each directional piezoelectric sensing element and generates an output signal for each direction.

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