Thermal response time measurement method is more complex multi-point thermocouple Main, different test conditions have different measurements, because it is affected by the rate of heat exchange with the surrounding medium influence the thermocouple multipoint thermocouple production, heat transfer rate , the thermal response time is short. In order to make the thermal response time thermocouple products comparable multi-point thermocouple prices, national standards: thermal response time should be carried out on a dedicated flow test device. Flow rate of the device should be maintained 0.4 ± 0.05m / s multi-point thermocouple, the initial temperature in the range of 5-45 ℃, the temperature step is 40-50 ℃. During the test, the water temperature should not exceed the temperature step values ??± 1%. Subjects thermocouple into a depth of 150mm or design into the depth (the smaller the value selected and noted in the test report). Test records should change to the output of the thermocouple temperature equivalent to 50% of the step change time T0.5, when necessary, to record changes in 10% of the thermal response time T0.1 and variations of 90% thermal response time T0.9. The thermal response time of the recording, the same test should be at least three times the average of the test results, each measurement result should be within ± 10% of a deviation from the average. In addition, the formation time of a step change in temperature required to be tested more than one thermocouple T0.5 very not. Recording instruments or instrument response time should not exceed one tenth of subjects thermocouple T0.5. Multi-point thermocouple Main, Gansu multi-point thermocouple, since the force measuring instrument multi-point thermocouple measured by the Shanghai Automation Instrumentation Co., Ltd. Shanghai Automation Instrumentation Co., force measurement (www.licesh.com) strong, credible, in Shanghai Zhabei District, flow meters and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the force measured since the instrument into the brilliant and you work for a better future!