Recent content by scottyheist

Thanks for your response. We're now pursuing your method. Would you have any advice on the ADC/computer interface?

I'm logging the RPM of a scaled wind turbine using a laser and modified microphone (with a photocell instead of a coil). The signal is recorded using Audacity and is a series of troughs separated by the time it takes for one blade to pass through the beam (please see attached image below)...