Watch Tick Timer Circuit

Posted on Oct 3, 2012

This circuit adapts a frequency counter to measure intervals. It was originally used as a shutter speed checker for a photo application. The watch ticks are clipped and shaped and formed into a square wave. This square wave is used to gate an accurately known clock (1-MHz TTL XTAL OSC) and an external counter is used to directly count the clock pulses during the interval to be measured.

Watch Tick Timer Circuit
Click here to download the full size of the above Circuit.

A 1-MHz clock can be used to measure to a resolution of 1 Accuracy = time base 1 1 count LSB.

Leave Comment

characters left:

New Circuits



Popular Circuits

TDA7000 FM Radio IC Test Circuit and Datasheet
Design on the basis of AT89C2051 intelligent automobile anticollision alarm equipment
telephone call voice changer
Touch Sensitive Musical Bell With Timer PCB
FM Booster~Active FM Antenna Amplifier
matrix keypad pic mikroc library
HF Transreceiver using NE612
Wien Bridge Oscillator Design
ESL amplifier circuit diagram
Low voltage DC power charger circuit