Dual-axis force feedback accelerometer

Details Dual-axis force feedback accelerometer Dual-axis force feedback accelerometer

1996-12-19

1998-08-04

Chapman, John E.

Measuring and testing

Speed, velocity, or acceleration

Acceleration determination utilizing inertial element

7351417, 7351421, G01P 1513

Patent

active

057896771

ABSTRACT:
A force-feedback accelerometer to measure small accelerations along two or more co-planar axes. A fiber suspension of a proof mass provides mechanical sensitivity; a cylindrical cross-section on the proof mass, with orthogonal optical position sensing, reduces sensitivity to torsional accelerations. Coupling both proof mass position and proof mass velocity to the feedback force eliminates the disadavantages associated with other forms of damping.

REFERENCES:
patent: 3438265 (1969-04-01), Davies et al.
patent: 4792931 (1988-12-01), Nishida et al.

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