1, classified according to the type of thermocouple fixtures as the primary means of standard thermocouple thermometer manufacturers, use very extensive standard thermocouple pictures, thus fixtures and technical performance requirements of a variety of standard thermocouple offer, therefore fixtures thermocouple points into six: no fixtures, threaded, flange type, activity flange, flanges Square form, tapered tube six kinds of protection. 2, according to the assembly and structural properties of the structure are classified according to the way the way the thermocouple can be divided into: Detachable thermocouple thermocouple, explosion-type thermocouple, sheathed thermocouple and thermocouple fixed compression springs and other special purposes. 2, the access law in the intermediate conductor circuit thermocouple intermediate conductor (third conductor), as long as the temperature is the same at both ends of the intermediate conductor, the introduction of the intermediate conductor of the thermocouple circuit has no effect on the total potential, which is intermediate conductor law. Application: According to the law of the middle conductor, in actual thermocouple temperature applications, often using the hot end of the welding, cold end of the open form, the cold side of the display instrument via the connecting wires connected to form measurement system. Some people worry that the connection with copper wire thermocouple cold end to the meter reading mV value, contact potential at the junction of the thermocouple wire and produced measurements will produce additional errors. According to this law, there is no such error! Standard thermocouple offer, since the force measuring device quality assurance, standard thermocouple measuring the force provided by the Shanghai Automation Instrumentation Co., Ltd. Shanghai Automation Instrumentation Co., force measurement (www.licesh.com) is the Shanghai Zhabei District, flow meters leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Since the force measuring device leadership with the staff warmly welcome all inquiries negotiations to create the force measuring instrument since a better future.