Abstract
We have made a new type of anemometer for monitoring a wind tunnel velocity using a small electrically heated thermistor bead. Although this is the same principle as the constant temperature hot-wire anemometer, it is a main characteristic that this operates either as an anemometer or as a thermometer by changing a current through the one thermistor bead. This anemometer changes to the thermometer at regular intervals, then it continues to monitor the variation in air temperature for that period. If the temperature of heated thermistor could be changed immediately by a computer as air temperature varies, the difference in temperature between a hot-thermistor and an ambient air flow would be kept constant. Thus, the reading of anemometer will always be compensated for changes in air temperature. This paper describes a new correction method for drift in air temperature and the result examined some characteristics of this anemometer.
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