The MDP200 Bi-Directional Differential Pressure Sensor is for CPAP, breath detection, room pressure, damper control, flow hood, fume hood, filter monitoring and other applications where ultra-low differential pressure performance is required.
MEMSIC’s MEMS thermal accelerometer platform, is an ultra-sensitive MEMs thermal technology which enables the MDP200 to detect minute changes in flow induced by differential pressure. The suspended bridge microstructure inside the MDP200 allows it to reliably detect pressure changes from a range of 0.016 Pascal to 500 Pascal.
“No diaphragm type sensor can achieve this level of performance,” says Ohlan Silpachai, Flow Product Manager at MEMSIC. “We compared our MDP200 against a class leading competitor differential pressure sensor with a 0 to 0.1 inch water column (25 Pascal) output range. In this head to head test, Memsic’s MDP200 demonstrated a superior signal to noise ratio at signal levels below 1 Pa, while offering a full scale range of 20x higher (MDP200 is calibrated at ±500 Pa). The integrated electronics within the sensor chip allows a 16 bit digital I2C output at an update rate of less than 7 msec.”