The dynamic properties of the preset count digital rate meter algorithms
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The exact analytical expressions for the response times of the preset count moving average and exponential digital rate meter algorithms to sudden changes of count rate have been obtained. Generalized concepts of the response time equivalence and steady-state statistical fluctuations equivalence allowed a detailed comparison of the two classes of digital rate meter algorithms. The conditions for complete equivalence, i.e., equal both response times and steady-state statistical fluctuations for the two classes of algorithms have been identified. The similarities and differences between the preset time and preset count digital rate meter algorithms are indicated. (C) 1998 American Institute of Physics.