ALGORITHM FOR PROCESSING THE OUTPUT SIGNAL OF THE DIRECT CURRENT THERMAL ANEMOMETERS AND THE CONSTANT TEMPERATURE
The article is proposed a technique for converting the output electrical signals of constant temperature anemometer and constant current anemometer into temperature and velocity in a non-isothermal gas flow. It is assumed that a complex function describing the heat transfer of a heated element can be represented as a product of two simpler functions. The first function is depends on the Reynolds number, and the second depends on the relative overheating of the sensing element of the thermal anemometer. The presented technique ensures good agreement between the actual and calculated values of the speed and temperature of the air flow in the ranges 1 ÷ 10m/s and 20 ÷ 45°C.