Practical Circuit of Frequency Counter

Published:2011/7/19 11:24:00 Author:Michel | Keyword: Frequency Counter, Practical Circuit | From:SeekIC

The picture 1 is practical circuit of frequency counter.Frequency measurement range is from 10kHz to several Hz.In the circuit,the first indication is fixed as 0, measurement period is 1.2 s and measuring time is 1 s. LQT-lOOX is the market crystals module. The circuit can be used as revolution meter and it is on the measured rotary actuator.For example,on the motor shaft every turn installs 6 pulse encoders ,which can directly read motor speed of every 1 min,namely the digital revolution indicator. If the amplifier circuit is added to the input portion ,the input signal is properly amplified and detecting the dc motor pulse current situation and the speed of the motor are also available.



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