Time useage by measureing ignition impulse

[VibSpeed]

I need to work out a way to measure useage of equipment in time by measureing time equipment is running i am hopeing to use ignition impulse to measure does any one have any ideas or informtion on what is available the equipment to be measured is small two stroke engines similar to chain saws

 

[jmw]

One way might be to fit a simple rpm sensor and count rotations using a high speed electronic counter. I suspect this is easier to acomplish than counting electrical ignition pulses.

JMW

http://www.ViscoAnalyser.com