Communications: electrical – Audible indication – Percussion-type sound producer
Patent
1982-03-09
1984-04-17
Sloyan, T. J.
Communications: electrical
Audible indication
Percussion-type sound producer
250231SE, 340347M, 307356, 307360, 377 17, H03K 1302, H03K 1320
Patent
active
044437870
ABSTRACT:
An apparatus is disclosed, for measuring the angular position of a shaft of a machine at the occurrence of an event originating from the operation of the machine, relative to a reference position of the shaft. The apparatus comprises a first sensor responsive to the reference position of the shaft (signal II) and a second sensor which, on the occurrence of the event, produces an output pulse and which produces a number of interference pulses in the periods between production of the output pulses (signal I). A comparator (4) having a threshold value which is capable of being exceeded both by the required pulses and the interference pulses, and a recognition circuit (3,6) which is adapted to recognize output pulses produced on the occurrence of the event, are arranged to control an evaluation circuit such as a counter (10). The evaluation circuit ascertains, e.g. by counting angular increment marker pulses (signal III), the angle through which the shaft rotates between the time when the threshold of the comparator (4) was last exceeded prior to triggering of the recognition circuit by the required event, and the time when the shaft reaches the reference position.
REFERENCES:
patent: 2929927 (1960-03-01), Beloungie
patent: 3513400 (1970-05-01), Russell
patent: 3519849 (1970-07-01), Tyler
patent: 3745544 (1973-07-01), Ono
patent: 3804979 (1974-04-01), Knowles
patent: 3955070 (1976-05-01), Suzuki et al.
patent: 4007357 (1977-02-01), Yanagishima
patent: 4169232 (1979-09-01), Henrich
patent: 4171522 (1979-10-01), Powell
patent: 4201911 (1980-05-01), Dering
patent: 4240069 (1980-12-01), Hullein et al.
Denk Heimo
Mantsch Peter
List Hans
Sloyan T. J.
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