公开(公告)号：US5076996A

公开(公告)日：1991-12-31

申请号：US360030

申请日：1989-06-01

申请人： Jinichi Miyaguchi ,  Yoshinori Takada ,  Shinichi Murakawa ,  Hiroshi Yatabe

发明人： Jinichi Miyaguchi ,  Yoshinori Takada ,  Shinichi Murakawa ,  Hiroshi Yatabe

IPC分类号： G21C17/12

CPC分类号： G21C17/12

摘要： A system for monitoring an operating condition of a control rod drive mechanism (CRDM) having a pressure housing erectly mounted on a reactor vessel head closure, a vertically movable control rod drive shaft accommodated in the housing and an electromagnetically motive latch mechanism includes an accelerometer fitted to a housing upper end and signal recording means for receiving output signals from the accelerometer through signal processing means and recording the processed output signals. A system for monitoring and analyzing an operating condition of an electromagnetically driven CRDM having a lifting electromagnetic coil, a stationary gripper electromagnetic coil and a movable gripper electromagnetic coil includes a detector, fitted to the CRDM, for detecting vibrations caused by operation of the drive mechanism, a buffer amplifier for receiving current, and detection and control signals, a pre-processing unit for digitalizing these signals, and a processing unit for analytically processing both the current and detection signals.

摘要翻译： 一种用于监测控制棒驱动机构（CRDM）的操作状态的系统，其具有竖立地安装在反应堆容器头部封闭件上的压力壳体，容纳在壳体中的可垂直移动的控制杆驱动轴和电磁动力闩锁机构，包括加速度计 以及信号记录装置，用于通过信号处理装置接收来自加速度计的输出信号并记录经处理的输出信号。 一种用于监测和分析具有提升电磁线圈，静止夹持器电磁线圈和可动夹持器电磁线圈的电磁驱动CRDM的操作条件的系统包括安装在CRDM上的用于检测由驱动机构的操作引起的振动的检测器 用于接收电流的缓冲放大器和检测和控制信号，用于对这些信号进行数字化的预处理单元，以及用于分析处理电流和检测信号的处理单元。