Re: Use a scope to determine overvoltage needed forstepper motors

Ian,

> I'd be interested to hear any opinions.

I don't think building anything for a 20KHz bandwidth is worth the
effort. Better spend $100 at Ebay and buy a good used scope.
Using the sound channel for ADC is almost not worth it. Think of lack of
calibration and stability issues...

You ask for opinions.... good for teaching kids about electronics,
whistling in a mike and seeing the wave form, but not for anything
serious. Thumb's down...

Hans Wedemeyer



Ian Wright wrote:

>
> From: "Ian Wright" <Ian@...>
>
> Hi,
>
> Has anyone tried any of the PC Shareware scope programs? I downloaded one or
> two a while ago and they looked quite good but I haven't yet plucked up the
> courage to make the necessary interface. One of the free programs I remember
> was called Winscope which I think is on the Simtel site. Part of its
> description file is here which will give an idea of what is available:-
>
> Oscilloscope for Windows v. 2.51
>
> Oscilloscope for Windows uses the sound card as an analog-to-digital
> converter, providing complete oscilloscope and spectrum analyzer
> functionality in Windows95 environment.
>
> Specifications:
> - Dual trace digital storage oscilloscope with spectrum analyzer
> - 20 Hz - 20 kHz bandwidth
> - 50 ms buffer length
> - data export to Windows clipboard or to file (text format)
>
> Features:
> - single and dual trace mode
> - XY mode (Lissajous patterns)
> - point-and-click waveform and spectrum meter functions
> - cross-correlation coefficient measurement
> - storage tube emulation
> - pretrigger view and armed triggering
>
> System requirements:
> - 80486 or higher PC running Windows95
> - any sound card with drivers installed
> - 300 kbytes disk free space during installation, 150 kbytes for
> operation
>
> I'd be interested to hear any opinions.
>
> Ian
> --
> Ian W. Wright
> Sheffield UK
>
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