Transverse thermal resistance element by special processing of silk material (copper or platinum wire winding), they are tight in thermometer front and compared with general axial thermal resistance, can be more correctly and quickly reflect the actual temperature condition of the end surface to be tested, making many methods, varieties of forms, suitable for power plant steam turbine and motor bearing shell or other body surface temperature measurement. It is also a common temperature measuring instrument, is based on the resistance of the metal conductor changes with the temperature of this characteristic to carry out temperature measurement, is widely used in industry, power, electronics and other fields.
The end thermal resistance is composed of protective tube, mounting bolt, locking clamp, spring and thermocouple wire, etc. With soft extension wire, can be bent freely, with low thermal response time, easy to use and so on. The temperature sensing element is made of specially treated resistance wire and is attached to the end face of the thermometer. Compared with the general axial thermal resistance, it can reflect the actual temperature of the measured end face more accurately and quickly, and is suitable for measuring the end face temperature of bearing bush and other parts.
End thermal resistance is a temperature sensor that converts temperature into resistance based on the principle that its resistance value changes with temperature. Temperature measurement equipment such as temperature transmitter, temperature control meter and PLC template can obtain the resistance value by applying a known excitation current to the thermal resistance to measure the voltage at both ends, and then convert the resistance value into the temperature value, so as to realize the temperature measurement. It is a primary component that converts temperature changes into resistance changes, usually by transferring resistance signals to computer control devices or other primary instruments through leads. Installed in the production site, there is a certain distance between the control room, so the thermal resistance lead will have a greater impact on the measurement results.