Warning device for monitoring rotation speed of prime mover

Details Warning device for monitoring rotation speed of prime mover Warning device for monitoring rotation speed of prime mover

1997-06-18

1999-03-09

Mullen, Jr., Thomas J.

Communications: electrical

Condition responsive indicating system

Specific condition

340648, G08B 2100

Patent

active

058806784

ABSTRACT:
A warning device for monitoring the rotational speed of a prime mover which includes: a) a converting unit electrically connected to the prime mover for converting a digital signal representative of the rotational speed of the prime mover to an analog voltage; b) a reference unit for providing a specific analog reference voltage corresponding to the digital signal; c) a comparison unit for comparing the analog voltage with the specific analog reference voltage and generating a comparison signal when the analog voltage is not equal to the specific analog reference voltage; and d) an output unit electrically connected to the comparison unit for generating an alarm signal in response to the comparison signal.

REFERENCES:
patent: 5534854 (1996-07-01), Bradbury et al.

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