thank you for your reply.
yes, i wish to measure the power during the rise time.
and sorry, what do you mean by many "events" of "dwells"?
we have a CW power meter but the same guy told me that it cant measure pulse signals.
Correcting it with the duty cycle sounds promising.
I will read up on that.
Thank you.
Agree w/ biff on the phase-sync'ing... probably won't help much in this case. As for your power conversion using duty cycle, the concept is very straightforward.
Example: You have a 1 watt output signal and run it into a CW (averaging) power meter.
If your signal is on 100% of the time (100% duty), then the CW meter will read an average power of 1 watt.
If your signal is on half of the time (50% duty), then the CW meter will read an average power of half the power, 0.5W (1W * 50%).
If the signal is on 10% of the time, the average power detected by the meter will be 10% of 1W, so 100 mW.
Be sure to understand the minimum power that your power meter will accurately read. You should stay ~10 dB above that level to ensure that the power meter is really picking up energy from the pulse and isn't confusing it with the energy detected from noise in the system. You should be able to see a linear change in duty vs. detected RMS power... if it becomes non-linear, you've got a problem somewhere (possibly signal compression, for the high end, or swamping out due to noise contribution, at the low end).
If you trigger your spectrum analyzer off of your 100 Hz source, then you should be able to get a direct power measurement... which could also be used to correlate the power meter readings.