Magnetohydrodynamic angular rate sensor for measuring large angu

Details Magnetohydrodynamic angular rate sensor for measuring large angu Magnetohydrodynamic angular rate sensor for measuring large angu

1989-10-25

1991-11-26

Noland, Tom

Measuring and testing

Speed, velocity, or acceleration

Acceleration determination utilizing inertial element

310 11, 324163, G01P 1500

Patent

active

050673513

ABSTRACT:
An electronic motion sensor is described, wherein a cavity formed in a case of high flux density material supports a permanent magnet at the bottom. The permanent magnet has a north/south pole orientation in line with the cavity axis. A circular channel is located above, having an axis coincident with the cavity axis and which is filled with mercury. A center contact post is located long the cavity axis in contact with the mercury, extending upwards through the top of the channel. An amplifier circuit supported on a header of high flux density material is placed on top of the channel. The amplifier amplifies the potential difference between the center contact and the case. The header effectively seals the cavity of the case.

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patent: 4764908 (1988-08-01), Greer, Jr.

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