Magnetic liquid supported linear accelerometer

Details Magnetic liquid supported linear accelerometer Magnetic liquid supported linear accelerometer

1976-02-17

1977-09-13

Gill, James J.

Measuring and testing

Speed, velocity, or acceleration

Acceleration determination utilizing inertial element

73517B, 308 10, G01P 1508

Patent

active

040474399

ABSTRACT:
A linear accelerometer comprises a proof mass in the form of a permanent bar magnet located in a tube containing a magnetic fluid such as a liquid with particles of magnetic material suspended therein. A servo circuit responsive to A.C. energized sensing coils is used to energize a D.C. electromagnet to maintain the proof mass in a central position in the tube.

REFERENCES:
patent: 2797912 (1957-07-01), Trostler
patent: 3488531 (1970-01-01), Rosensweig
patent: 3530727 (1970-09-01), Albert
patent: 3734578 (1973-05-01), Rosensweig

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