Accelerometer for blast monitoring

Details Accelerometer for blast monitoring Accelerometer for blast monitoring

1988-11-18

1989-11-28

Steinberger, Brian S.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Receivers

367188, 181122, H04R 1700, H04R 1100

Patent

active

048842508

ABSTRACT:
An accelerometer for blast monitoring comprises at least one piezoelectric transducer having a piezoelectric membrane attached along the edge thereof to the sidewall of a suitable container and mounted for free movement in such container for generating a high impedance electrical output signal upon deformation of the piezoelectric membrance by vibration during a blast, a high to low impedance converter connected to the piezoelectric membrane for converting the high output impedance of the piezoelectric membrane into a low impedance signal for transmission through long cables to recording equipment, and means for encapsulating the piezoelectric transducer and converter into epoxy or other solid material to minimize response of the transducer to surrounding acoustic signals.

REFERENCES:
patent: 3911388 (1975-10-01), Crump et al.
patent: 4300220 (1981-11-01), Goff et al.
patent: 4458341 (1984-07-01), Goebel
patent: 4599713 (1986-07-01), Rudaz

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