Electricity: measuring and testing – Electrical speed measuring – Including speed-related frequency generator
Patent
1975-06-30
1977-05-17
Rolinec, Rudolph V.
Electricity: measuring and testing
Electrical speed measuring
Including speed-related frequency generator
73506, G01P 348
Patent
active
040244733
ABSTRACT:
An arrangement for use in indicating the speed of rotation of a body including a switch operated by elements which rotate according to the rotation of the body, a frequency generator which has an output signal at a frequency related to the desired speed of rotation of the body and an indicator which is actuated in accordance with the signals from both the switch and the frequency generator.
REFERENCES:
patent: 3581561 (1971-06-01), Tomashek
patent: 3584298 (1971-06-01), Kolbiaz
patent: 3611343 (1971-10-01), Schoenbach
patent: 3672230 (1972-06-01), Klebl
patent: 3739276 (1973-06-01), Dornberger
patent: 3739367 (1973-06-01), Fathauer
Easthope Frederick James
Edge Gordon Malcom
Ridler Keith Douglas
Rolinec Rudolph V.
Strathearn Audio Limited
Sunderdick Vincent J.
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