Position sensing apparatus with continuous update

Details Position sensing apparatus with continuous update Position sensing apparatus with continuous update

1991-07-24

1994-07-26

Shoop, Jr., William M.

Electricity: motive power systems

Positional servo systems

With compensating features

318616, 318661, G05D 23275

Patent

active

053329554

ABSTRACT:
A position measurement system includes position error circuitry (PEC) that responds to periodically provided actual position information and a computed position to provide correction information, and a position synthesizer which responds to the correction information to provide the computed position. The computed position information is fed back to the PEC. The position synthesizer establishes a rate of change of the computed position based on the correction information in a manner tending to make the computed position track the actual position. The position synthesizer updates the computed position many times for each time that the actual position information is provided to the PEC, and thus provides much more continuous position information.

REFERENCES:
patent: 4253051 (1981-02-01), Schneider
patent: 4352050 (1982-09-01), Sakano
patent: 4748555 (1988-05-01), Miyake et al.
patent: 4792739 (1988-12-01), Nakamura et al.
patent: 4945501 (1990-07-01), Bell et al.
patent: 4947093 (1990-08-01), Dunstan et al.
patent: 4968923 (1990-11-01), Busujima
patent: 4988936 (1991-01-01), Schneider

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