Technical development of the pressure type thermometer

Due to the power equipment has special requirements to the thermometer, used for transformer measuring body temperature thermometer must have outdoor conditions of use and ability to resist electromagnetic interference. S in the last century, the domestic is equipped with electric power transformer capacity is relatively small, easy to maintain, therefore, to use thermometer also did not put forward higher requirements, general glass rod thermometer or electric contact pressure type thermometer. Electric contact pressure type thermometer is on the basis of ordinary pressure type thermometer to add some by an external power supply work contact, the contact can be considered by measuring temperature is lower than or more than the set temperature electrical signals, so as to achieve the goal of controlling temperature. But in actual use process, short service life, lower reliability of node action has been gradually replaced by pressure type thermometer. Along with the development of the industrialization in our country, the capacity of transformer is also increasing, also to the requirement of using pressure type thermometer is improving. The original pressure type thermometer is to meet the needs of the development of electric power, also can't meet the requirements of power transformer the user's actual use. In order to research and development in a short time has better outdoor protection performance of the electric contact pressure type thermometer, in outdoor electric contact pressure type thermometer, on the basis of the thermostat is developed, so as to further perfect the function of the pressure type thermometer.