Zero drift and temperature drift will be encountered during the use of the transmitter, and the zero drift and temperature drift have a direct impact on the measurement accuracy of the transmitter. So, how do the temperature drift and zero drift of the transmitter occur? How to solve the drift problem of the transmitter? Let’s find out. Causes of temperature drift and zero drift in transmitters: Due to the asymmetry of the component parameters in the transmitter bridge; The temperature coefficient of the sensitive gate material, the line expansion coefficient of the elastic element and the resistance strain gauge are different, and the length of the bridge lead is inconsistent, which finally leads to a certain difference in the overall temperature coefficient of the adjacent arm after the transmitter is composed of the bridge, and when the temperature changes, the resistance of the adjacent arm changes differently, so that the output of the bridge is unbalanced, that is, the zero drift is generated. Temperature drift refers to the instability of the zero point due to the influence of temperature. It can be seen that the influence of temperature is the most important factor in the occurrence of drift, and it is also the most difficult to control. How to solve the drift problem of the transmitter: There are generally 2 ways to solve transmitter drift, hardware and software. The hardware methods include the appropriate constant resistance method for series and parallel connection on the bridge arm, the thermistor compensation method for the bridge arm, the compensation method for the series and parallel connection of the bridge arm, the double bridge compensation technology, the transistor compensation technology, etc. The software method is to eliminate the offset through the software program, this method corresponds to the digital output of the sensor is very practical, the customer can be written through the software to achieve, or the transmitter with the digital display table can also be achieved by adjusting the digital display, which is very convenient. If you have any questions about product consultation, product customization, agency, technical inquiry, quotation, etc., please contact Xingyi, 400-600-4496!