Learning to type.... (was Re: Programming 101 web page)
Terry_Sare at dell.com
Terry_Sare at dell.com
Tue Oct 13 21:16:51 GMT 1998
Idle suggestion, put a low pass filter on it at about 20 khz so you
don't pickup extra noise.
ts
> I sound car will sample 44khz, which should put it easily able
> to accurately measure ms range pulses accurately. Put some OPAMPS to
> buffer the inputs and maybe scale things reasonably, and I think
> there is some software to make the sound card act as a simple low
> frequency oscope, if not, contact me, and it should not be that
> difficult to write a simple piece of software to do that sort of
> thing. I have writtem some simple sound card stuff, just not
> recently but it was fairly straightforward.
>
> With 44khz assumeing about 10khz bandwidth that should get things
> easily down to .1 ms, if you have 20khz bandwidth that should
> put things down around .05 or so. Probably .1ms should be easily
> workable, but of course I have not yet tried this sort of thing.
>
> Roger
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