Working principle of pressure transmitter of SAIC

                                             Working principle of pressure transmitter of SAIC

The electrical components of the pressure transmitter to sense the pressure are generally resistance strain gages, which are sensitive devices to convert the pressure on the measured piece into an electrical signal. The most widely used resistance strain gauges are metal resistance strain gauges and semiconductor strain gauges. There are two types of metal resistance strain gauges: wire strain gauges and metal foil strain gauges. Generally, the strain gauge is tightly bonded to the matrix generating mechanical strain through a special adhesive. When the stress on the matrix changes, the resistance strain gauge will also deform together, changing the resistance of the strain gauge, thus changing the voltage applied to the resistance.