Mpxv7002 integrated silicon pressure sensor data sheet. Which strain gauge is the right one for your application. A diaphragm is frequently used as the pressure sensitive measuring body in the lower pressure range, while. Strain gauge or strain gage was invented in 1938 by edward e. The strain gauge has been in use for many years and is the fundamental sensing element for many types of sensors, including pressure sensors, load cells, torque sensors, position sensors, etc. When a closed container is subjected to the appilied pressure, it is strained that is, its dimension changes. Measurement of this strain with a secondary transducer like a strain gauge metallic conductor becomes a measure of the appilied pressure. The majority of strain gauges are foil types, available in a wide choice of shapes and sizes to suit a variety of applications. It is one of the significant sensors used in the geotechnical field to measure the amount of strain on any structure dams, buildings, nuclear plants, tunnels, etc. A pressure sensor generates a signal related to the pressure imposed. The strain gauge based displacement sensor have introduced. Ruge, in particular, was instrumental in introducing many practical forms of the gage and a variety of transducers that incorporate it as the input sensor.
Output versus pressure differential 4 pressure p1vacuum p2 side identification table nxp designates the two sides of the pressure sensor as the pressure p1 side and the vacuum p2 side. Sensors, transducers strain gauges are in stock at digikey. Explanation of pressure sensor pressure sensor a pressure sensor measures the pressure, typically of gases or liquids. Pressure is an expression of the force required to stop a gas or fluid from expanding, and is usually stated in terms of force per unit area. Strain gauge pressure sensor principle instrumentation tools. Strain gauge sensors or piezoresistive sensors piezoresistive means pressure sensitive resistance, or a resistance that changes value with applied pressure. How do strain gauge based pressure transducers work. A field guide to understanding pressure transducers. Pdf a strain gauge based displacement transducer for measurement of the displacement in the range of 0 to 10 mm is reported.
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