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目前，压水堆核电站普遍采用线圈编码式棒位指示系统测量其控制棒位置，而在此基础上发展的自编码数字式棒位指示系统的探测器与前述系统的探测器均需补偿线圈来实现差动输出，从而提高输出信号的信噪比。本研究提出并从理论上证明后者可取消专设的补偿线圈而采用软件补偿，并据此设计了软件补偿自编码棒位探测器。该方案进一步简化了棒位指示系统的探测器结构，使其线圈数量少，轴向长度缩短，结构简单的优点得以在２００ＭＷ供热堆中实现。
At present, pressurized water reactor nuclear power station generally uses the coil coding type rod position indicator system to measure the position of the control rod. On the basis of this, the self-coded digital rod position indicator system detector and the aforesaid system detector need to compensate the coil Achieve differential output, thereby increasing the signal-to-noise ratio of the output signal. This research proposes and theoretically proves that the latter can cancel the compensation coil with software compensation and design software compensation self-coded rod detector. The solution further simplifies the structure of the detector of the stick-position indicator system, reduces the number of coils and shortens the axial length, and simplifies the structure to be realized in a 200MW heating reactor.