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Frequency measurement

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namster:
Hi ,
what are the techniques for a precision frequency measurement ? , the DATA can be used but i don't think that give a good precision !

EEEnthusiast:
Precision measurement can be performed using a frequency counter with an accurate time base. There are frequency counters out there which could do the job. Basically you set the counter start and stop using the 1 sec precision pulse and clock it with the input signal.
for low frequencies, use a PLL to scale up the frequency before measurement. This gives better precision.

FenTiger:
This article describes a couple of techniques: http://n1.taur.dk/permanent/frequencymeasurement.pdf

namster:
thanks for the orientation , I will do some research

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