Motion amplitude regulator with breaking pulse regulation

Details Motion amplitude regulator with breaking pulse regulation Motion amplitude regulator with breaking pulse regulation

1979-03-01

1985-02-12

Westin, Edward P.

Oscillators

Solid state active element oscillator

Transistors

331156, 331183, 318128, H03B 530

Patent

active

044994362

ABSTRACT:
There is disclosed a driving and control circuit for a tuning fork resonator also adaptable to rotary motor control wherein an approximately sine wave signal from a motion sensor is applied to an instantaneous level detector which causes a control signal to be generated during that portion of the sine wave signal where the instantaneous level exceeds an adjustable reference level; the control signal causes the application of a current to the tuning fork drive which is in a direction to cause braking and reduction of motion amplitude. A distinctive feature of the instantaneous level detector is the fact that the sine wave signal is not rectified but is rather converted to a fluctuating direct current signal with a DC level accurately determined by an internal semiconductor voltage reference element.

REFERENCES:
patent: 3116466 (1963-12-01), Grib
patent: 3609578 (1971-09-01), Chapman et al.
patent: 3621467 (1971-11-01), Dostal
patent: 4049997 (1977-09-01), McGhee

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