MPXM2102AS

Pressure sensors and transducers are devices designed to measure the pressure of a system or the differential pressure between two points of a system, typically expressed in pounds per square inch (psig) and inches of water column (inWC). MPXM2102AS is one kind of them.

The MPXM2102AS is one of silicon-on-sapphire pressure sensors and is an extremely high-performance, digitally compensated monolithic DPS, with reinforced isolation, designed for use in low-pressure applications. It has a wide dynamic range of operating pressure, from as low as 0 inches of water column up to 10 psig, with a resolution of 0.0001 inches of water column and a maximum operation temperature of 200 Celsius. It is also exceptionally accurate over a wide range of temperature, with typic al accuracy of 0.05% full-scale. In addition, this sensor also has a high frequency response and low signal noise, which makes it well suited for high speed or time varying pressure applications.

The operating principle behind the MPXM2102AS is based on the Wheatstone bridge. It is composed of two electrically isolated ‘bridges’, which each contain a matching pair of strain gages. These strain gages, which sit beneath the silicon die, are connected to the bridge and placed in a specific configuration so that when pressure is applied to the bridges, the strain gages are compressed or expanded. This produces a change in resistance across the bridge, which is then converted into a voltage signal by the Wheatstone bridge.

The signal is then further conditioned and amplified by the IC, to produce a calibrated, useable voltage or current output. Should the output cable be disconnected, the sensor can still detect and measure the differential pressure applied to it and thus act as a ‘gauge’ type sensor.

The MPXM2102AS is ideal for applications such as test and measurement, given its wide, accurate measurement range, low power consumption, long-term stability, and low cost. It can also be used in flow control of non-corrosive gases, as a direct aid to medical equipment, or as a gauge and for high frequency pressure pulsing operations.

In conclusion, the MPXM2102AS pressure sensor and transducer is an extremely versatile and user-friendly device, for low-pressure applications where accuracy, reliability and a fast response are essential. Its ability to measure pressure changes of as small as 0.0001 inches of water column, with a high degree of accuracy over a wide temperature range, makes it particularly suitable for situations where detailed, high-precision pressure measurements are required.