18-10-2016, 11:34 AM
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The modern electronic frequency counter is a versatile device. In its simplest mode, it provides a method to determine the frequency of any suitable signal applied to its input port. The accuracy of the measurement is directly related to the internal resolution of the counter and the accuracy of its internal time base.
The frequency counter operates on the principle of the input frequency into the counter for a predetermined time however, a simple techniques for low frequency measurement is not available. Although. It is straight forward to measure the period, it takes a relatively long duration for frequency measurements low values of frequency have to be measured in analysis of biological (medical) signal, contain systems process, audio, and power ranges application.