Position transducer arrangement

Details Position transducer arrangement Position transducer arrangement

1974-01-16

1976-03-16

Dobeck, Benjamin

Electricity: motive power systems

Positional servo systems

Frequency- or phase-modulated systems

318562, 318662, G05B 101

Patent

active

039449033

ABSTRACT:
In a position transducer arrangement one or more AC operable position transducers are energised by the output of a variable amplitude oscillator. The output signals from the oscillator and the or each transducer are demodulated, or detected in turn by the same demodulator and the demodulated oscillator signal is compared with a reference signal to produce a difference signal. The difference signal is used to adjust the amplitude of the oscillator signal in the sense to reduce the difference signal to zero.

REFERENCES:
patent: 2429771 (1947-10-01), Roberts
patent: 3005135 (1961-10-01), Palmer et al.
patent: 3503058 (1970-03-01), Ault et al.
patent: 3760251 (1973-09-01), Posi et al.

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