| 摘要 |
A frequency change measuring device comprises frequencydivider for frequency dividing a measuring signal to produce frequency-divided signals, first counter for counting the frequency-divided signals to calculate frequency-division numbers, frequency division numbers transmitter for transmitting the frequency division numbers in synchronism with the frequency-divided signals, frequency division numbers receiver for receiving the frequency division numbers transmitted from the frequency division numbers transmitter, second counter for counting outputs of a reference clock generator synchronized with a timekeeping device that keeps the standard time, latch unit for latching a count of frequency outputs of the reference clock generator synchronous for generating reference clocks on the basis of signals synchronous with the frequency division numbers, and operations unit for determining a frequency change on the basis of the count and the frequency division numbers.
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