AWM43300V Medical Air Flow Sensor 5V Amplified Low Vacuum Mass

AWM43300V Air Flow Sensor Mass Medical Amplified Low Vacuum Control

The small size and thermal isolation of the microbridge mass airflow sensor are responsible for the extremely fast response and high sensitivity to flows. Dual Wheatstone bridges control airflow measurement–one provides closed loop heater control, the other contains the dual sensing elements.

The heater circuit minimizes shift due to ambient temperature changes by providing an output proportional to mass flow. The circuit keeps the heater
temperature at a constant differential (160°C) above ambient air temperature which is sensed by a heat-sunk resistor on the chip. The ratiometric voltage output of the device corresponds to the differential voltage across the Wheatstone bridge circuit.

Specification Sheet:

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