Re: [CAD_CAM_EDM_DRO] Subject: Re: oscilloscope for CNC

On Mon, 30 Jun 2003 01:14:24 -0000, you wrote:

>--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Bernard R"
><bwjarandall@c...> wrote:
>> I've had suprisingly good results using my digital camera to record
>> glitches, it does help that I have a viewing hood, but one can
>easily
>> be made from cardboard.
>>
>> IMO a 'scope is all but useless to the non electronic fraternity,
>> obtaining a stable viewable trace on signals other than from a
>signal
>> generator requires a fair amount of expertise; interpreting the
>> results is another matter altogether. Also as most waveforms need
>to
>> either be viewed, or triggered, in relation to other signals there
>is
>> a real danger of getting the wrong ground wires connected and then
>> expensive blue smoke.
>>
>> My 2c
>>
>> Bernard
>
>
>That would be me. : )
>
>I needed to monitor an input-output sequence on a PIC so needed the
>simplest of units. the Win-Scope was the right price, but I have not
>needed if for any other reason.
>
>Now for ADC monitoring of temperatures, I would like a digital
>storage sensor, but am not electronically well versed to know how to
>use one.

The theory is to connect the thing physically to the device you want
to monitor.. Allow a PC or something else to periodically read the
values and store them, then take that data and graph it. You can get
standalone stuff, or you can use a PC...

If you can write a program, you can also do that, if you have good
access to the channel...

You could also take a joystick connector, connect it to your pc, put a
thermistor in place of one of the joysticks, run some calibration
curves, and then write a basic program to get some rough values....

Harvey

>
>Dave
>
>
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