To introduce myself I'm an electronic technician. To those who don't know, the difference between technicians and engineers is that a technician just doesn't have the math.
My problem is this: I have to measure the phase difference between two approximate (but always in sync) sine waves 10Hz - 200kHz. They're approximate because they're produced by pickups off rotating machinery. Could anyone point me in the direction of what area to study to resolve this problem, which is currently done by using comparators to produce a PWM signal relating to phase. I assume there are DSP chips which eat this sort of thing for breakfast but without knowing the principles I don't really know enough to choose one. The phase produced will be part of a control system, so will need to be read (or produced if fast enough) by some sort of PIC.
Thanks in advance.
My problem is this: I have to measure the phase difference between two approximate (but always in sync) sine waves 10Hz - 200kHz. They're approximate because they're produced by pickups off rotating machinery. Could anyone point me in the direction of what area to study to resolve this problem, which is currently done by using comparators to produce a PWM signal relating to phase. I assume there are DSP chips which eat this sort of thing for breakfast but without knowing the principles I don't really know enough to choose one. The phase produced will be part of a control system, so will need to be read (or produced if fast enough) by some sort of PIC.
Thanks in advance.