Barry-
    You could try recording both from the same sensor as an experiment and
compare the results.
-Edward

barry lotz wrote:

> 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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--
Edward Cranswick                Tel: 303-273-8609
US Geological Survey, MS 966    Fax: 303-273-8600
PO Box 25046, Federal Center    cranswick@........
Denver, CO 80225-0046  USA      E.M. Forster said, "Only connect".




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