shaz
Member level 4
cd4050 スレッショルド
hi,
recently I found this frequency measurement circuit in a magzine. It measures
frequencies upto 250kHz. Actually the author hasn't given the technical details of the circuit. my doubts are:-
1. what type of frequency can this circuit measure, i.e. can it measure sine wave?
2. as i feel after reading (from few details which are given in), the magzine the
resolution is 1 Hz, how can i incerease the resolution to 0.1 Hz or 0.01 Hz?
3. what's the role of T1, D5, and N1?
i think i've asked many questions,
hi,
recently I found this frequency measurement circuit in a magzine. It measures
frequencies upto 250kHz. Actually the author hasn't given the technical details of the circuit. my doubts are:-
1. what type of frequency can this circuit measure, i.e. can it measure sine wave?
2. as i feel after reading (from few details which are given in), the magzine the
resolution is 1 Hz, how can i incerease the resolution to 0.1 Hz or 0.01 Hz?
3. what's the role of T1, D5, and N1?
i think i've asked many questions,