Servo actuator diagnostic monitoring

Details Servo actuator diagnostic monitoring Servo actuator diagnostic monitoring

1984-12-04

1995-06-06

Blum, Theodore M.

Electricity: motive power systems

Positional servo systems

With protective or reliability increasing features

G05B 2302

Patent

active

054225531

ABSTRACT:
The output response of a pilot valve controlled servo 10 is monitored by a computer 20 using a transducer 16 on the main control valve 12 and a transducer 11 on the servo output 10a. The response is compared by determining the predicted output response and response time from a mathematical model for the servo, and if the response or response time is incorrect, a warning indication is provided.

REFERENCES:
patent: 4191913 (1980-03-01), Arnold et al.
patent: 4266170 (1981-05-01), Inoue
patent: 4305028 (1981-12-01), Kostas et al.
patent: 4375611 (1983-03-01), Greig
patent: 4471279 (1984-09-01), Inaba et al.

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