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Industrial pressure sensors

Pressure sensors are the one of most common industrial sensors, Its widely used in various industrial automation environment, involving many industries water conservancy and hydropower, railway transportation, intelligent buildings, production automation, aerospace, military, petrochemical, oil, electricity, shipbuilding, machine tools, pipes, etc.
industrial pressure transmitter

Practical application:
Many types of mechanical sensors, such as resistance strain gauge pressure sensors, semiconductor strain gauge pressure sensors, piezoresistive pressure sensors, inductive pressure sensors , capacitive pressure sensor, resonant pressure sensor and capacitive accelerometer sensors. However, the most widely used is a piezoresistive pressure sensor, which has a very low price and high precision and good linearity. Here we introduce this type of sensor. before understanding of piezoresistive force sensor, we first learn a component called resistance strain gauge. Resistance strain gauge is a sensitive device that tranmit the strain variation on the DUT converted into an electrical signal, It is one of the main components of piezoresistive pressure sensors.

Piezoresistive pressure sensor principle and application

Working principle:
Pressure of measured media directly on the sensor diaphragm (stainless steel or ceramic), the diaphragm produce micro-displacement proportional to the pressure of the medium, the value of the sensor changes, This change is detected by the electronic circuit, and converting an output signal corresponding to the standard measurement of the pressure.

Modern sensors vary in principle and structure, How reasonable selection of sensors, depending on the measurement purposes, the measurement object and measuring environment, is first problem to be solved when measurement, when the sensor is determined, measurement methods and devices will be able to determine also.Measurements success depends largely on the sensor selection is reasonable.