Method and apparatus for monitoring the control rods of a nuclea

Details Method and apparatus for monitoring the control rods of a nuclea Method and apparatus for monitoring the control rods of a nuclea

1982-01-28

1984-12-04

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

With control of reactor

By electronic signal processing circuitry

376240, 376252, 376258, G21C 736

Patent

active

044863829

ABSTRACT:
Method and apparatus for monitoring the movement of the control rods of a nuclear reactor.
The number of steps of movement in either direction of the rod from which the control rod is suspended is counted. According to the height of the step, an indication of the position of the suspension rod and of the control rod. The apparatus comprises devices for measuring the speed of movement of the control rod, for logging variations in speed higher than a given value, and for counting such variations according to their sign. The invention is particularly useful in pressurized water nuclear reactors.

REFERENCES:
patent: 3237150 (1966-02-01), Beck
patent: 3303457 (1967-02-01), Akesson
patent: 4290849 (1981-09-01), Uesugi
patent: 4314881 (1982-02-01), Wu

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