Piezoelectric impulse sensor

Details Piezoelectric impulse sensor Piezoelectric impulse sensor

1988-03-21

1989-05-30

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310319, 310329, 310365, 7386122, H01L 4108

Patent

active

048354368

ABSTRACT:
An impulse sensor comprises a first Piezo electric disc (25) with two oppositely polarized halves disposed symmetrically about a reference plane including the rib (26) of a thin wall of the transducer container vessel and pressed onto the thin wall, and a second Piezo electric disc (29) with the same polarization for both halves disposed symmetrically about the reference plane and pressed onto a rigid wall of the transducer container vessel. The impulses transversely acting on an impulse receiving member extending from the thin wall generate electric signals of high signal-to-noise ratio from the first Piezo electric disc (25) and electric signals of low signal-to-noise ratio from the second Piezo electric disc (29). The electric signals from the two Piezo electric discs are combined to cancel noises and extract refined signals representing the impulses.

REFERENCES:
patent: 2894317 (1959-07-01), Marks
patent: 3349259 (1967-10-01), Kistler
patent: 3495102 (1970-02-01), List et al.
patent: 3566163 (1971-02-01), Fischer et al.
patent: 3582691 (1971-06-01), Sonderegger et al.
patent: 4262544 (1981-04-01), Herzl
patent: 4559832 (1985-12-01), Burlage et al.
patent: 4604544 (1986-08-01), Konomi et al.

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