Re: Use a scope to determine overvoltage needed for stepper motors

----- Original Message -----
From: Charles VanLeeuwen <cavlon@...>
To: <CAD_CAM_EDM_DRO@onelist.com>
Sent: Friday, January 28, 2000 1:34 PM
Subject: Re: [CAD_CAM_EDM_DRO] Use a scope to determine overvoltage needed for stepper motors


> I am partial to Tek scopes also. The 465, 475, and 485 are long standing
> popular portable analog units. Some came with digital multimeter built on
> too. Generally selling for a couple hundred these days. The limitation of
> these is they are only two channel. Sometimes you want to look at 3 or 4
> signals at once. In this case you jump up in price for a portable or go to
> a considerably bigger case with plugi-ns.
>
> The newer digital scopes are much easier to use and far more portable in
> their handheld, LCD screen versions. However, you are looking at $1000 to
> $2000. Both Tek and Fluke are well known.
>
> You can also get cards that plug into your PC. I don't know if there are
> any that work with a laptop.

Yes there are boards that work with the laptop. Both PCMCIA and parallel port
interface.

>
> cvl
>
>

FWIW I also like the Tek scopes. they are the standard by which all are judged.
That doesn't mean I wouldn't take a LeCroy if given to me.
I also like HP, but they are a little touchier.
If you do go for one for the PC you can get multiple channels, storage, Fast Fourier,
spectrum analysis pretty cheaply.

Marshall