Air flow monitoring differential pressure sensor serves medical designs
Stephen Law
Electronics Medical medical SensorMIKROE Air Flow Click air flow monitoring peripheral development board for applications that demand high precision, extended measurement range, and the convenience of a single device. Suitable for sensitive medical applications such as ventilators, spirometers and sleep diagnostic equipment, as well as precision industrial uses including leak detection, the flow-based 2-in-1 differential pressure sensor at the heart of the compact Air Flow Click is made by First Sensor (TE Connectivity). The LHDULTRAM012UB3, LHD ULTRA series pressure sensor measures the thermal flow measurement of a gas through dual micro-flow channels integrated within the sensor chip to effectively maximize the dynamic range of the sensor from 0 to 1250Pa. An on-board MCU with an accurate 24-bit ADC provides signal processing, including response from the two sensing elements, linearization, barometric compensation and temperature correction. Air Flow Click is supported by a mikroSDK compliant library, which includes functions that simplify software development. Click boards are equipped with the standard 16-pin mikroBUS™ socket which was invented by MIKROE ten years ago.
