Oscillators – Electromechanical resonator
Patent
1982-11-12
1985-03-26
Laroche, Eugene R.
Oscillators
Electromechanical resonator
310 36, 318128, 368158, H03B 530
Patent
active
045076235
ABSTRACT:
An oscillating device has an electro-mechanical drive, a pivotal or oscillating armature and a regulating circuit, wherein a capacitor, the capacitance of which varies with oscillation of the armature is used as a displacement transducer or pickup. A signal generated by a signal generator is conducted by way of the series-connection of the displacement transducer, a rectifier and a filter to an amplifier circuit, the frequency of said signal being much greater than the natural resonant frequency of oscillation of the electro-mechanical drive. An output voltage which is substantially in phase with the angular movements of the armature i.e. angle-proportional thereto, appears at the output of the amplifier circuit and is supplied to a set value input of a differential amplifier contained in the regulating circuit.
REFERENCES:
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patent: 3040223 (1962-06-01), Buhrendorf
patent: 3123728 (1964-03-01), Kreiskorte
patent: 3290595 (1966-12-01), Novotny
patent: 3346792 (1967-10-01), Noumi
patent: 3517288 (1970-06-01), Bennett et al.
patent: 3652955 (1972-03-01), Cruger et al.
patent: 3784888 (1974-01-01), Geiersbach et al.
patent: 3919606 (1975-11-01), Nemoto
Fosco Guido
Schmutz Karl
Kleeman Werner W.
LaRoche Eugene R.
Pascal Robert J.
Siemens-Albis AG
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