DEMOMPR031

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The DEMOMPR031 evaluation board is designed for use with Sensirion\'s MPR031 digital differential pressure sensor and the unique MEMS technology it employs. The sensor uses exclusively developed MEMS technology to measure absolute pressure accurately and reliably over a wide range of temperatures.

The MPR031 is composed of a high performance, low-power ASIC (application specific integrated circuit) and a MEMS (micro-electro-mechanical system) pressure sensor. The ASIC processes data from the MEMS, allowing the user to view an absolute pressure that is accurate and reliable.

The MPR031 has a range of working principles depending on the application it is being used for:

Application in Barometers

When used as a barometer, the MPR031 measures atmospheric pressure to gauges the local weather conditions. Whenever atmospheric pressure changes, it affects density of air in the environment; this then causes a variation in the height of the column vapor in the air’s structure. This is referred to as atmospheric pressure and is measured using the MPR031. Since the density of the air is constant, the level of the barometer will rise and fall dependent upon the air pressure therefore the MPR031 is essential in accurately measuring air pressure, as pressure is the foremost factor that identifies humidity and air pressure.

Application in Pressure Measurement

The MPR031 evaluation board is also used to measure air pressure in pipes, vessels, and ducts for applications in HVAC, flow and pressure systems and control systems. For the purpose of pressure measurement, the MPR031 uses an internal reference pressure for comparison and calculates the differential pressure between the reference pressure and the measured air pressure. This process allows the demo board to accurately measure differential pressure and provide a reliable reading for use in industrial pressure measurement.

Application in Altimeters

When used in altimeters, the MPR031 measures the atmosphere pressure as the altitude increases or decreases. This evaluation board is an ideal choice for this application because of its low power consumption and wide temperature range (−40°C to +150°C). It is well suited for use in altimeters that measure increasing or decreasing altitude and require a reliable pressure value to accurately measure the height levels.

Application in Flow Control Systems

The MPR031 can also be used to control liquids in systems that require a regulated flow or volume. The potential applications are manifold, ranging from pump systems to laboratory analytical systems. Coupled with its wide temperature range, the evaluation board is suited to accurately measure flow and adjust the liquid volume accordingly.

Conclusion

The MPR031 evaluation board provides a reliable and accurate measurement for a wide range of applications. With its wide temperature range and low power consumption, it is versatile for use in applications such as barometers, pressure measurement, altimeters, and flow control systems. This is why the evaluation board is an excellent choice for those seeking to measure pressure accurately and effectively.

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