1, the working principle of heat resistance of almost all of the conductors and resistivity semiconductors are with their own changes in temperature change wear thermal resistance distribution, and there is a certain value, this physical phenomenon is called "thermal resistance effect." If we can find or have known thermal resistor temperature change of correspondence between the electricity can be measured by measuring the resistance value of the instrument, the purpose of measuring the temperature. Using the temperature measuring element made of this principle is called thermal resistance or thermistor, RTD is uniformly thin metal wire around the heat for this double wear resistance on the skeleton made of an insulating material made of retail, most industrial temperature less demanding laboratory or field can only be used with high accuracy traceable standard platinum resistance thermometer as a transfer standard, but the actual field of industrial temperature measurement due to various conditions, standard platinum resistance thermometer is not available, so temperature money transfer and traceability can not be achieved in these areas can not carry out the actual measurement and calibration work. Shanghai Automation Instrumentation force measurement, wear thermal resistance Main, Guizhou wear thermal resistance provided by the Shanghai Automation Instrumentation Co., force measurement. Shanghai Automation Instrumentation Co., force measurement (www.licesh.com) located in Zhabei District Luochuan Road 638. Scraps and development in the wave of market economy, the current force measurement since the instrument has a high profile in the flow meter, and enjoys a good reputation. Force measurement instrument made from the entire network business alliance certification, marking our service and management level has reached a new height. Force measurement instrument from the staff willing to work with all people of insight and common development, for a better future.