Electricity: motive power systems – Positional servo systems – With particular 'error-detecting' means
Patent
1984-10-03
1986-06-10
Shoop, Jr., William M.
Electricity: motive power systems
Positional servo systems
With particular 'error-detecting' means
340347SY, 340347CC, 318636, 318605, G05B 106
Patent
active
045945403
ABSTRACT:
A system for measurement of shaft angles wherein a synchro resolver (10) is sequentially pulsed, and alternately, a sine (32) and then a cosine (36) representative voltage output of it are sampled. Two like type, sine or cosine, succeeding outputs (V.sub.S1, V.sub.S2) are averaged and algebraically related to the opposite type output pulse (V.sub.c) occurring between the averaged pulses to provide a precise indication of the angle of a shaft (18) coupled to the resolver (10) at the instant of the occurrence of the intermediately occurring pulse (V.sub.c).
REFERENCES:
patent: 3600694 (1971-08-01), McCollum
patent: 4062005 (1977-12-01), Freed
patent: 4207505 (1980-06-01), Falck
patent: 4270077 (1981-05-01), Swartz et al.
patent: 4334179 (1982-06-01), Grimes et al.
patent: 4358723 (1982-11-01), Scholl
patent: 4528511 (1985-07-01), Smith
Currie James R.
Kissel Ralph R.
Beumer Joseph H.
Keane Patrick
Manning John R.
Shoop Jr. William M.
The United States of America as represented by the Administrator
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