Domestic Research and Development of Pre-Charge Amplifier for Loose Part Monitoring System
The loose parts monitoring system is an advanced online monitoring equipment,whose main function is to monitor the nuclear reactor coolant loop in real-time and detect loose metal parts.These loose metal parts generate impact vibrations within the reactor,and the system processes the collected signals and sends out alarm signals.A core component required for the implementation of the loose parts monitoring system's functionality is the charge amplifier.Taking the discontinuation of the foreign manufacturer's charge amplifier for the loose parts monitoring system of Qinshan Nuclear Power Plant 1 as the project background,an alternative model of charge amplifier has been developed.After comparison experiments with the original equipment,the results show that the domestically designed charge amplifier has reliable working capabilities and stable performance.
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