Amplifier for timing light inductive clamp
Amplifier for timing light inductive clamp
(OP)
I'm trying to use an inductive clamp from a timing light to pick up RPM signals for a chassis dyno. I need <10V but enough for the Dataq DI-148U I'm using to read. I've tried finding a usable signal off the timing light itself, and an AD8230 in-amp in a couple different configurations. With the amp I get a signal but it makes no sense. I'm using the AD8230 in-amps for bridge and thermocouple measurements. http://w ww.analog. com/Upload edFiles/Da ta_Sheets/ AD8230.pdf The data sheet made that easy. Could one of you point me to a suitable amp and schematic for what I'm trying to do?
Thanks,
Kevin
Thanks,
Kevin





RE: Amplifier for timing light inductive clamp
Mike Halloran
Pembroke Pines, FL, USA
RE: Amplifier for timing light inductive clamp
Thanks,
Kevin
RE: Amplifier for timing light inductive clamp
You can get a frequency signal with the DI-8B45 plugged into the DI-718B-U.
If you're into electronics, you could probably use the timing light signal to trigger a one-shot, send that to a leaky integrator and low-pass filter, and read that for a ~DC signal that's roughly proportional to engine speed. If your labor is worth anything, it would be cheaper to just buy the DI-718-U and DI-8B45.
Mike Halloran
Pembroke Pines, FL, USA
RE: Amplifier for timing light inductive clamp
Thanks,
Kevin