Honeywell AWM2000 Series
Honeywell air flow sensors operate based on the principle of heat transfer. The air mass flow is directed across the surface of the sensor elements, where two sensing elements positioned on either side of a central heating element detect both the direction and velocity of the flow.
The output voltage varies proportionally with the air or gas mass flow passing through the inlet and outlet openings of the housing. A specially designed housing ensures precise guidance and control of the airflow over the micromachined sensing structure.
Possible applications
- Damper control for heating, ventilation, and air conditioning systems
- Gas analyzers
- Process control
- Medical devices and ventilators
- Oxygen concentrators
- Leak detectors
- Gas chromatography
Functionality
In simple terms, an air flow sensor is a device with two pressure ports through which gas flows from one port to the other (see Figure 1). Inside the sensor is a sensitive measuring element with a heated surface.
When air or gas flows through the sensor element, heat is transferred in the upstream direction, as illustrated in Figure 2. This creates a temperature difference that is proportional to the mass flow of the medium. The temperature difference is detected by an electronic circuit and converted into a corresponding output signal.
- Precise and fast response to the flow of air or other gases
- Bidirectional measurement function
- Detection of low differential pressure values
- Improved response time
- Low power consumption enables use in portable devices and battery-powered applications
| Item numbers |
|---|
| AWM2100V |
| AWM2150V |
| AWM2200V |
| AWM2300V |
| AWM2150V |
| AWM2200V |
| AWM2300V |
| AWM2300VH |
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