Pendulum position detector

Details Pendulum position detector Pendulum position detector

1989-07-31

1990-12-25

Noland, Tom

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

250224, 250341, 356375, G01B 1100, G01D 1800

Patent

active

049793870

ABSTRACT:
An opto-electronic device for accurately defining the position of a pendulum in libration, is disclosed. The chief use intended by the inventor is to enable accurate passive determination of the beat rate of a newly installed or repaired pendulum type clock. The device is easy to use and does not perturb the pendulum. A novel circuit configuration automatically recognizes an edge of a pendulum for production of a defining electronic pulse.

REFERENCES:
patent: 2587452 (1952-02-01), Forris
patent: 3926048 (1975-12-01), Uebelhart et al.
patent: 3949592 (1976-04-01), Berney
patent: 4335596 (1982-06-01), Greiner

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