This self-heated constant-temperature-delta transistor anemometer is cheap, rugged, and sensitive. It relies on the relationship between airspeed (AF) and thermal impedance (ZT = o C/W) of a heated ...

All thermal anemometers work by inferring air speed from measurements of thermal impedance (Z) between a heated sensor and the surrounding air: An example of the constant power type can be found in ...

Computer-compatible airflow instruments are widely available but are usually expensive, bulky, and mechanically fragile. This anemometer continuously converts airspeed in the range of zero to tens of ...