Measuring and testing – Speed – velocity – or acceleration – Acceleration determination utilizing inertial element
Patent
1985-09-23
1987-11-17
Chapman, John
Measuring and testing
Speed, velocity, or acceleration
Acceleration determination utilizing inertial element
73517B, 73654, G01P 1513
Patent
active
047064986
ABSTRACT:
An accelerometer comprising a ferrofluid coated permanent magnet as a proof mass mounted for substantially friction-free movement in a hollow vessel on which vessel are mounted three coils that are used with an electrical circuit to detect and measure movement of the proof mass in response to an outside force and to return the proof mass to a null position.
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Brochure, published by Sundstrand (copyrighted 1984).
Hoyt Charles D.
Nemnich Charles L.
Chapman John
Ferrotec, Inc.
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