【摘要】 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。更多还原

【Abstract】 At present,the coils coding rod position indicating system is generally used to detect the control rod position in the PWRs.Based on the coding principle of the system,the self coding rod position indicating system is developed.For improving the indicating systems’ output signal to noise ratio,the two kind system adopt the compensatory coils and make them link with the indicating coils differentially in the detectors.This research advances and demonstrates in theory that the compensatory coils above could be canceled but the detectors are compensated by software.So the new detector,Self coding Rod Position Detector Based on Software Compensation is designed.This way further makes the detector structure of the indicating system simple and the advantage of less coils and short length axially got.So the detector can be used in 200MW Nuclear Heating Reactor (NHR 200).更多还原