Well I got two Analog devices ADXL202's. It has a couple of interesting
attributes. It's two axis for one. Secondly it has a "duty cycle" option
where one can read the acceleration(s) without an AD converter. You
simply measure the duty cycle length of a predefined cycle. The width of
the step is related to the acceleration. It has the usual drawback in
that it is a  2g accelerometer. ie milli g resolution. It is also low
power (<0.6 ma). I think I will hook it up to an extra SDR channel and
see what happens. BTW  I'm not sure whether to read acceleration and
integerate it in Winquake or include a hardware integrator before
recording. The hardware integrator has a more limited bandwidth but
recording accelerations would require a higher sampling rate. Any
thoughts?
Regards
Barry



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