Accession Number : ADD002562

Title :   Digital Pulse Rebalance Accelerometer.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON D C

Personal Author(s) : Johnston,James V

Report Date : 21 Oct 1975

Pagination or Media Count : 4

Abstract : The patent relates to an acceleration sensing device for measuring missile motion and includes a free floating proof mass which is rotated or spun on the acceleration sensitive axis. The proof mass is rotated on hydrodynamic bearings which provide frictionless support for axial motion of the mass. A capacitance type pickoff is located at each end of the rotation shaft and sense displacement of the proof mass, thereby controlling the amount of electrical pulses which feed into torquers to restore the proof mass to the center position. The amount of pulses required to restore the proof mass is proportional to the magnitude of the applied acceleration.

Descriptors :   *Guided missiles, *Accelerometers, *Patents, Gas bearings, Signal processing, Rotation

Subject Categories : Guided Missiles

Distribution Statement : APPROVED FOR PUBLIC RELEASE