Integrating angular accelerometer

Details Integrating angular accelerometer Integrating angular accelerometer

1980-12-15

1982-11-30

Gill, James J.

Measuring and testing

Speed, velocity, or acceleration

Means integrating time and acceleration

73516R, G01P 1508

Patent

active

043610404

ABSTRACT:
The present invention is directed to an integrating angular accelerometer ich has a neutrally buoyant mass, thereby eliminating the detrimental effect of high shock and vibration loads. The accelerometer includes a housing and an inertial mass positioned in the housing, arranged for relative rotation with respect to the housing. An annular channel is provided between the housing and the inertial mass, located about the acceleration sensitive axis and dimensioned to cause fluid flow upon relative rotation of the housing and inertial mass in the direction of relative rotation. The fluid contained within the channel is a viscous fluid having a density equal to that of the inertial mass so as to achieve a neutral buoyancy of the inertial mass. A splitter for blocking fluid flow in the channel is provided so as to produce a differential pressure which corresponds to the relative angular rotation of the inertial mass and housing. A transducer is provided for converting the differential pressure into an electrical signal corresponding thereto.

REFERENCES:
patent: 2907560 (1959-10-01), Stedman
patent: 3059480 (1962-10-01), Carpenter
patent: 4002077 (1977-01-01), Taplin

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