Measuring and testing – Speed – velocity – or acceleration – Angular rate using gyroscopic or coriolis effect
Patent
1995-03-27
1998-07-14
Williams, Hezron E.
Measuring and testing
Speed, velocity, or acceleration
Angular rate using gyroscopic or coriolis effect
7350417, G01P 326
Patent
active
057807388
ABSTRACT:
An apparatus for sensing an angular rate of motion includes a body which defines a surface having a protuberant portion, and an orifice through the surface and proximate to the protuberant portion through which a fluid jet is directed along an initial jet axis. The protuberant portion directs the fluid jet in a path along the surface in accordance with the Coanda effect. A first flow sensor is fixed relative to the body and proximate to the path of the fluid jet along the surface of the body. The first flow sensor produces a first indication of a rate of flow of a first portion of the fluid jet proximate thereto. A second flow sensor is fixed relative to the body and proximate to the path of the fluid jet along the surface of the body. The second flow sensor produces a second indication of a rate of flow of a second portion of the fluid jet proximate thereto. The angular rate of motion of the body is sensed in dependence upon the first indication and the second indication.
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Measurements & Control, "Fluidic Angular Rate Sensors", by Ricardo E. Dao, Feb., 1994.
Interval Research Corporation
Kwok Helen C.
Williams Hezron E.
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