Ballistics pressure transducer

Details Ballistics pressure transducer Ballistics pressure transducer

1988-08-05

1989-07-25

Levy, Stewart J.

Measuring and testing

Fluid pressure gauge

Mounting and connection

73167, 73706, 73714, 73754, G01L 2310, G01L 514

Patent

active

048502294

ABSTRACT:
The invention involves the design of a miniaturized piezoelectric pressure ransducer used for measuring pressure-time characteristics in gun tubes during the propellant ignition and burning process. The transducer utilizes a Z-cut tourmaline crystal as the piezoelectric pressure sensing element which produces a finite amount of electrical charge (normally expressed in picocoulombs) for a given change in pressure. The tourmaline crystal is incapsulated in a mechanical fixture which provides means for mounting in the gun tube. Electrical terminals are provided for connnecting to signal conditioning and recording instrumentation. Insulators are provided for electrically insulating the pressure sensing element from weapon ground.

REFERENCES:
patent: 3886792 (1975-06-01), Change et al.
patent: 4519254 (1985-05-01), Sonderegger et al.
patent: 4621519 (1986-11-01), Phillips
patent: 4735091 (1988-04-01), Engeler et al.

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