Grunff wrote:

I think based on all the good advice so far, I'm going to go for a
two
pronged approach. I'll set up a calorimiter, and use the resistor
method
discussed elsewhere in the thread, and I'll also get a data logger
(as
fast as I can afford) and do the measurement that way as well. Should
be
interesting to compare the results.

I dont rmember you saying how quickly the spikes repeat. If it many
times per second, all you need is an analogue meter, problem solved. MC
meters read average current.

If thats no good I'd use a small series R and feed the signal to an
opamp integrator.


NT