New Method for Rapid and Accurate Measurement of Decay Time Constants

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Abstract
In many experimental situations involving an exponentially decaying process, the time constant of the decay is of fundamental interest. The information is usually contained in an electrical signal, or can be converted to an electrical signal by means of an appropriate transducer. We offer a new method by which the time constant of such a signal can be rapidly and accurately measured. The method was devised in connection with the measurement of resistivities by the eddy current decay technique, but its usefulness in a more general context is also discussed.

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