Heat flux sensor is the basic tool to measure heat transfer

　　Heat flux sensor is the basic tool to measure heat transfer and the most important component of heat flow meter. The performance and application of heat flow sensor determine the performance and application of heat flow meter.
　　The influence of the tightness of the heat flow sensor and the measured object on the heat flow measurement accuracy: the tightness of the heat flow sensor and the measured object has a great influence on the heat flow stability time. The closer the paste is, the faster the stability is, and the smaller the measurement deviation is; on the contrary, the larger the measurement deviation is. Therefore, in the process of using the transient heat flow sensor, we should try our best to ensure that the heat flow sensor can stick to the measured object tightly, so as to reduce the measurement time and improve the measurement accuracy. The application of thermal conductive adhesive (thermal conductive silicone grease) provides a very good condition for solving this problem.