Method Selection and Measurement Error Analysis of Reactor Pool Water Level Measurement Within Narrow Rang in China Advanced Research Reactor

In the paper, four methods of reactor pool water level measurement within narrow rang in China Advanced Research Reactor(CARR) are described. Four methods of measurement are segregate flange differential pressure transmitter measurement, huffing measurement, absolute pressure transmitter measurement, and differential pressure transmitter measurement. Then we selected the best one from them and analyzed measurement error of selected method. The results show that the method of differential pressure transmitter measurement can meet our requirement.