Encoder signal analysis system for high-resolution position meas

Details Encoder signal analysis system for high-resolution position meas Encoder signal analysis system for high-resolution position meas

1997-07-11

1999-08-03

Hoff, Marc S.

Coded data generation or conversion

Phase or time of phase change

Synchro or resolver signal

341155, H03M 522

Patent

active

059331062

ABSTRACT:
A signal analysis system for processing quadrature analog waveforms from an encoder. High-resolution position measurements for external measurement devices are obtained. A hardware component receives the quadrature analog signals from the encoder and processes these signals to generate low and high-resolution waveforms. These waveforms are then further processed and sent as first and second data streams to a computational component of the signal analysis system. The absolute phase angle (.THETA.) of the encoder's analog signal is determined by processing the data streams with the computational component. .THETA. is compared to a series of calibration factors to determine the position of the translating component of the external measurement device.

REFERENCES:
patent: 5365184 (1994-11-01), Callender et al.
patent: 5442172 (1995-08-01), Chiang et al.

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