Nuclear reactor remote disconnect control rod coupling indicator

Details Nuclear reactor remote disconnect control rod coupling indicator Nuclear reactor remote disconnect control rod coupling indicator

1975-10-14

1977-10-11

Engle, Samuel W.

176 19EC, 176 36C, G21C 1700

Patent

active

040533557

ABSTRACT:
A coupling indicator for use with nuclear reactor control rod assemblies which have remotely disengageable couplings between the control rod and the control rod drive shaft. The coupling indicator indicates whether the control rod and the control rod drive shaft are engaged or disengaged. A resistive network, utilizing magnetic reed switches, senses the position of the control rod drive mechanism lead screw and the control rod position indicating tube, and the relative position of these two elements with respect to each other is compared to determine whether the coupling is engaged or disengaged.

REFERENCES:
patent: 3296081 (1967-01-01), Wildgoose

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