Timepiece testing apparatus

Details Timepiece testing apparatus Timepiece testing apparatus

1976-06-10

1977-06-21

Queisser, Richard C.

Measuring and testing

Instrument proving or calibrating

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

G04B 1700

Patent

active

040303381

ABSTRACT:
An apparatus for testing the accuracy of a timepiece comprising a television camera for converting the time displayed into an electrical signal, a means for converting the electrical signal into a digital signal, and a processing means for storing the digital signal and comparing the digital signal to a signal corresponding to a time standard. In operation, the time displayed on the timepiece is compared to the time standard at two different times and the difference between the time standard and the time displayed of the two measurements is compared.

REFERENCES:
patent: 3914543 (1975-10-01), Kawahare et al.
patent: 3978322 (1976-08-01), Dobkin

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