  In this paper, the calorimetric power measurement method for electron
cyclotron resonance heating system on EAST are presented. This method requires
measurement of the water flow through the cooling circuits and the input and
output water temperatures in each cooling circuit. Usually, the inlet water
temperature is controlled to be stable to get more accurate results. The
influence of the inlet water temperature change on the measurement results is
analyzed for the first time in this paper. A novel temperature calibration
method is proposed also. This kind of calibration method is accurate and
effective, and can be easily implemented.
