Laminar jet linear accelerometer

Details Laminar jet linear accelerometer Laminar jet linear accelerometer

1975-08-14

1976-07-27

Gill, James J.

Measuring and testing

Speed, velocity, or acceleration

Acceleration determination utilizing inertial element

137804, 137840, G01P 1502

Patent

active

039712575

ABSTRACT:
A laminar jet linear accelerometer includes a plenum chamber to which prerized fluid is supplied and a nozzle operatively associated with the chamber for issuing the fluid in the form of a jet. The jet is conducted into another chamber, which is vented to an ambient environment, and output channels, having fluidic output sensors disposed therein, are disposed downstream of the vented chamber. Under non-acceleration conditions, the issued jet uniformly impinges upon the sensors and a zero differential output is sensed and indicated, thereby indicating the absence of an applied acceleration. Under applied acceleration conditions, however, the jet flow is deflected by means of the applied acceleration and consequently, such flow impinges upon the sensors in a non-uniform manner. A differential output is thus sensed and the value or magnitude of the acceleration applied may be determined therefrom.

REFERENCES:
patent: 3205715 (1965-09-01), Meek
patent: 3279488 (1966-10-01), Jones
patent: 3310985 (1967-03-01), Belsterling et al.
patent: 3403563 (1968-10-01), Bowles

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