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A hot wire anemometer was calibrated in an air jet at ambient temperature TO = 20.6 °C and a wire temperature T = 126.0 °C. The anemometer is to be used to measure a flow with a stagnation air temperature of Ta = 22.1 °C. Calculate a correction factor. to minimise the error due to the change in V temperature, where V is the measured output voltage at test and V is the corrected voltage for which the original calibration should be applied. Provide your answer to three decimal places.
Transcribed Image Text:A hot wire anemometer was calibrated in an air jet at ambient temperature TO = 20.6 °C and a wire temperature T = 126.0 °C. The anemometer is to be used to measure a flow with a stagnation air temperature of Ta = 22.1 °C. Calculate a correction factor. to minimise the error due to the change in V temperature, where V is the measured output voltage at test and V is the corrected voltage for which the original calibration should be applied. Provide your answer to three decimal places.
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