High Pressure Air Flow Sensor

At the simplest level an airflow sensor or more precisely a mass air flow sensor is a device with two pressure ports where gas flows from one port to the other see figure 1.

High pressure air flow sensor.

The design of the flow channel results in very low pressure drop through the sensor element making it highly suitable for medical ventilation. Silicon chip design is created from thin film thermally isolated bridge structure containing both heater and temperature sensing elements. This provides rapid response to the air or gas flow and amount and direction delivering a proportional output voltage. All airflow sensors operate on heat transfer flow and differential pressure.

Specifications and performance with 5 accuracy and an iso 17025 certified calibration with ability to consistently measure pressures as low as 0 1 psi you can have confidence. High quality optional sensors for measuring air flow temperature humidity pressure degree of turbulence heat radiation co2 illumination intensity pmv ppd and wbgt. Inside the sensor there s a sense element with a heated surface. It is designed to meet the instantly increased demand for respiratory applications the flow of air and oxygen at rates from 10slm to 240slm is measured with excellent accuracy and extremely high speed.

High precision integrated pressure sensor included. As gas flows across the sense element heat is transferred from upstream to downstream. Sensirion s differential pressure sensors in a bypass configuration are the ideal cost effective choice for measuring air flow with high accuracy robustness and stability.