I wish the digital read-out was coupled to a tone so you could "hear" the right voltage. Huh, that's a thought. We have a deaf student right now who's working on getting his certs in, and we're interested in the variety of ways people feel/hear/etcetera. Since he can't hear, he can feel t...

Arno wrote:
Thermocouples and some simple datalogging/sampling interfaces are your friend

Lol, right? That doesn't look too bad; I think that might be round 4 of our experiment thus far! Thanks, Arno!

The long-arc is easy to spot on a transformer machine. The voltage increases. When I teach a person to TIG with a machine that has digital readout. I record the voltage I weld at with proper arc length for the weld. Then I coach them on arc length based on their voltage readout while they weld. It'...

Can never have too much raw data.. :lol: Depending on what your are testing for or researching it may be best to perform various tests in a single testing session/day under at least somewhat controlled/same conditions and gather up as much data as you can in one go. Usually then the biggest amount ...

Also, thank you, Louie1961! These are helpful; we already know how to set up oscilloscopes, though, which is great; we're just wanting to find a way to optimize how much raw data we can get! haha We're wanting as many data points as we can generate, which requires (as I'm told) the rate of output fr...

Not that I have any idea how to go about what your doing. Curious though, are you studying it as a fixed power source, under load, or while it maintains an arc? I'm studying it to determine what the "baseline" looks like, so while it maintains an arc. Also, we're attempting to measure wha...

Hi guys! I need some help. I'm doing some research on quantifying welding waveforms (really--the current/amperage/frequency output of the machine). I'm trying to figure out the best way to "digitize" that waveform. I'm thinking shunts and oscilloscopes. I'm using TIG machines--millers, spe...