Unitary fluidic angular rate sensor

Details Unitary fluidic angular rate sensor Unitary fluidic angular rate sensor

1976-02-25

1977-05-03

Gill, James J.

Measuring and testing

Speed, velocity, or acceleration

Acceleration determination utilizing inertial element

G01P 1508

Patent

active

040207005

ABSTRACT:
The nozzle of an angular rate sensor which directs a stream of fluid toward a pair of temperature-dependent sensing resistor elements is formed in a major block which defines the chamber within which the sensing elements are also mounted, thereby to mitigate problems of aligning the jet with respect to the chamber and of aligning the sensing elements with respect to the nozzle. Within the casing, only the nozzle block, a diaphragm pump assembly, and an anvil need be mounted; these are secured by a lock nut, the pressure thereof being applied through a conical Belleville spring. A fine weld is used to hermetically seal the element, but the weld can be cut off without damage to the unit; so that by loosening the lock nut, the entire apparatus can be disassembled without destruction. Reference resistors, for a bridge to measure changes in the sensing elements, are mounted directly within the unit, to avoid bridge misbalances due to external connections.

REFERENCES:
patent: 1841607 (1932-01-01), Kollsman
patent: 2643869 (1953-06-01), Clark
patent: 2726074 (1955-12-01), Ketchledge
patent: 3205715 (1965-09-01), Meek
patent: 3581578 (1971-06-01), Schuemann

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