The noise of a pressure transmitter is divided into internal noise and external noise, where the internal noise includes thermal noise and shot noise. What is the noise of a pressure transmitter, how does this affect our use in the field, and how do we reduce the noise of a pressure transmitter? Thermal noise Thermal noise mainly comes from the pressure transmitter itself, which cannot be eradicated, and can only be used with a resistor with a small resistance value to reduce the magnitude of thermal noise. In addition, it is important to note that the thermal noise of the pressure transmitter is closely related to the frequency bandwidth. Therefore, in order to reduce the thermal noise of pressure transmitters, the narrowband amplifier method can also be selected. Shot noise The principle of this noise generation lies in the process by which charged particles cause a capacitive effect on the electrodes. Capacitive effects include both capacitive discharge and current noise, and a narrowband amplifier can be used to reduce the shot noise of a pressure transmitter. External noise External noise of pressure transmitter refers to the noise caused by natural interference or man-made interference, and the sources of external noise mainly include lightning, electrical, etc. At the same time, when a pressure transmitter has a common power supply, frequent changes in current can cause noise. We can control these variables for pressure transmitter noise caused by human factors, but external noise caused by natural phenomena cannot be avoided. The noise of the pressure transmitter reduces the resolution and measurement accuracy of the transmitter and has an impact on the control system. Extra care is required during the use of pressure transmitters. If you have any questions about product consultation, product customization, agency, technical inquiry, quotation, etc., please contact Xingyi: 400-600-4496!