20 INCH-D-MV

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Pressure sensors and transducers come in a variety of shapes and sizes and serve to resolve the forces in a fluid system into an easy to measure electrical signal. The 20 inch-D-MV is one type of pressure sensor/transducer that offers high accuracy and reliability. This article explains the application fields and working principle of the 20 inch-D-MV.

Application Fields

The 20 inch-D-MV is designed to be installed in a variety of demanding fluid power systems. It is capable of accurately measuring a range of pressures from vacuum to 200 bar across a vast temperature range from -20°C to 120°C. This makes it suitable for use in harsh and hazardous industrial environments such as the petroleum and mining industries as well as in medical and laboratory applications. It can also be used in measuring force, vacuum, and altitude.

Working Principle

The 20 inch-D-MV pressure transducer relies on the principle of piezoresistance. It uses a strain gauge to convert pressure changes into corresponding electrical signals. The strain gauge is encased inside a diaphragm made of stainless steel, where the surfaces marked on it are exposed to the fluid being monitored. As the pressure increases, the force of the fluid is applied on the surface of the diaphragm. This causes the diaphragm to deform, which in turn causes the strain gauge to increase in electrical resistance. The change in resistance is then relayed back to the user in the form of an electrical signal. As the pressure decreases, the strain gauge reduces in electrical resistance and the signal is correspondingly lower.

The 20 inch-D-MV also uses a Wheatstone bridge circuit configuration. When the strain gauge is connected in an electrical bridge circuit, a careful balance between the resistances in the circuit is maintained. The change in resistance due to the pressure fluctuation causes the balance to shift, and this imbalance is then converted into an output voltage which can be read on a digital display or other measuring device. The Wheatstone bridge also amplifies the signal and filters out any signals that are not directly related to the pressure.

The 20 inch-D-MV also includes a temperature compensation circuit that corrects the readings to account for any changes in temperature. This ensures that the output voltage stays relatively constant even when the temperature fluctuates. This makes the 20 inch-D-MV an ideal choice for applications in which accuracy and precision are of paramount importance.

The 20 inch-D-MV is a highly efficient and reliable pressure sensor/transducer. It is capable of accurately converting pressure changes into corresponding electrical signals, and is suitable for use in a variety of demanding and hazardous industrial environments. Its temperature compensation circuit also ensures that it is able to provide consistently accurate readings even in fluctuating temperatures.

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