integrating frequency meter

integrating frequency meter

[′int·ə‚grād·iŋ ′frē·kwən·sē ‚mēd·ər]
(engineering)
An instrument that measures the total number of cycles through which the alternating voltage of an electric power system has passed in a given period of time, enabling this total to be compared with the number of cycles that would have elapsed if the prescribed frequency had been maintained. Also known as master frequency meter.
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