Fluidic gap gauge

Details Fluidic gap gauge Fluidic gap gauge

1976-12-28

1977-11-01

Woodiel, Donald O.

Measuring and testing

With fluid pressure

Dimension, shape, or size

G01B 1312

Patent

active

040559831

ABSTRACT:
A split-ring hermetically sealed pressure enclosure is positioned around a ap formed between a shell body and base plate of a projectile for the purpose of measuring an unknown gap volume and comparing it to a standard acceptable volume. The system utilizes a gauging system which pressurizes both the known volume of the standard volume and unknown volume of the test body simultaneously and then measures the rate at which each volume is depleted. Fluidic sensing, amplifying, and gating systems are utilized for generating an output signal responsive to comparative pressure rate changes of both standard and test volumes. The output signal is used to operate a visual, biased, no-go, go pneumatic indicator.

REFERENCES:
patent: 3844162 (1974-10-01), Picozzi
patent: 3962903 (1976-06-01), Firdaus

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