KANOMAX 6036 Multi-function thermal anemometer User Manual - Manual (Page 30)

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- Temperature Compensation -
When the air temperature changes, the amount of heat dissipation
will change accordingly even the air velocity is constant. Thus,
Anemomaster employs a temperature compensation circuit to
enable accurate air velocity measurement by eliminating the
influence to the temperature change. For this purpose, a
temperature measurement sensor Rc having the same temperature
coefficient as the air velocity is provided at the opposite side of the
bridge, and the bridge is adjusted so that the difference with the air
temperature (T-Ta) is kept constant.
- Air Temperature Measurement -
An air temperature element (platinum resistor) which its resistance
value changes by the air temperature is incorporate din on side of
the bridge. The air temperature can be obtained by measuring the
variance in the resistance value.
Air temperature element
(Platinum resistor)
Wind