대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)
- 제20권1호
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- Pages.295-303
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- 1996
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- 1226-4881(pISSN)
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- 2288-5324(eISSN)
DOI QR Code
광도전성저항을 이용한 열선유속계의 온도보상
Temperature Compensation of Hot-Wire Anemometer with Photoconductive Cell
- Lee, Sin-Pyo (Dept.of Mechanical Engineering, Graduate School of Seoul National University) ;
- Go, Sang-Geun
- 발행 : 1996.01.01
초록
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