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Temperature Compensation of Hot-Wire Anemometer with Photoconductive Cell
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 Title & Authors
Temperature Compensation of Hot-Wire Anemometer with Photoconductive Cell
Lee, Sin-Pyo; Go, Sang-Geun;
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 Abstract
A new temperature compensation technique for hot-wire anemometer is proposed in this article. In contrast to the available compensation techniques, a photoconductive cell is introduced here as a variable resistor in the bridge. The major advantage of adopting an active component such as photoconductive cell is that temperature compensation can be achieved by using any kind of temperature sensors, once the output of temperature sensor is given as a voltage. Thereby, the temperature compensation can be made automatically and intelligently by a computer software or a hardware device. Validation experiments using a photoconductive cell with a thermocouple-thermometer are conducted in the temperature range from 3 to 5 and the velocity ranges from 8 m/s to 18 m/s.
 Keywords
Hot-Wire Anemometer;Temperature Compensation;Photoconductive Cell;
 Language
Korean
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