Method and apparatus for detecting trouble in pulse generators

Details Method and apparatus for detecting trouble in pulse generators Method and apparatus for detecting trouble in pulse generators

1988-07-07

1989-05-02

Myracle, Jerry W.

Measuring and testing

Simulating operating condition

Marine

123479, G01M 1500

Patent

active

048256919

ABSTRACT:
A trouble detecting method and apparatus for detecting trouble in either of a first pulse generator for generating first pulses and a second pulse generator for generating N second pulses between each pair of successive first pulses. The number of the second pulses produced between each pair of successive first pulses is repeatedly counted and it is detected whether or not the result of the count is cyclically more than a first predetermined value and whether or not the maximum count cyclically reaches a second predetermined value. On the basis of the results of the detections the determination is made as to whether either of the pulse generators has malfunctioned and if so which.

REFERENCES:
patent: 4395905 (1983-08-01), Fujimori et al.
patent: 4759212 (1988-07-01), Sawada et al.

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