Coil self-inductance based control rod position measuring system
A measurement system and control rod technology, which is applied in the field of reactor measurement and control, can solve the problems of large sensor volume, primary coil damage, and overall system failure, and achieve the effects of reducing installation difficulty, volume reduction, and easy production
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[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0019] Such as figure 1 As shown, the present invention provides a control rod rod position measurement system based on the principle of coil self-inductance, including a rod position measurement sensor composed of a group of self-inductance measurement coils 1 and auxiliary signal circuits for position measurement. Respective inductive measurement coils are independent, respectively corresponding to their respective auxiliary signal circuits; a reference signal sensor composed of a self-inductance reference coil 2 and its auxiliary signal circuit, the self-inductance reference coil and its auxiliary signal circuit are connected to the rod The self-inductance measuring coil of the position measuring sensor and its auxiliary signal circuit have the same structure to generate a reference signal; a measuring mandrel 3 connected to the control rod and composed of...
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