A Tau-Meter for Rapid-Response Temperature Recording Systems

L. J. Anderson U. S. Navy Electronics Laboratory, San Diego, California

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H. L. Heibeck U. S. Navy Electronics Laboratory, San Diego, California

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The equipment described is suitable for measuring lag coefficients, as small as 0.1 second, of temperature recording systems. The sensing element is suspended alternately in two air streams of different temperature. The ratio of indicated to actual temperature difference is used to compute the lag coefficient. Measurements indicate that the lag of the amplifier-recorder is small compared to that of the elements tested.

The equipment described is suitable for measuring lag coefficients, as small as 0.1 second, of temperature recording systems. The sensing element is suspended alternately in two air streams of different temperature. The ratio of indicated to actual temperature difference is used to compute the lag coefficient. Measurements indicate that the lag of the amplifier-recorder is small compared to that of the elements tested.

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