VE1BLL, I agree with the ham radio point. Seems like there would be a few detectable things going on here that I could utilize non-contact. I just have to turn over the right rock.
I believe that for the time being I'm going to order this...
Skogsgurra,
No, I did actually mention that in the previous post. I went to that website. There are no international/U.S. contacts. Prices look right. The circuit descriptions give little clue (to me anyway) as to how the devices might be used for cable current sensing.
I googled "flux...
ahh my life is a nightmare sometimes. Everything I find is over 200USD and still not quite capable. Last thing that I found was this http://www.veris.com/file_uploads/h600_800_d.pdf
and the sales guy said that 300amps would certainly break it.
I'm finding diy sheets on how to physically...
update to this..
I need to tell (trigger with a signal level relay) a separate process control when there is arc established, and when it is stopped. This needs to function with any tig welding machine and be non contact (not require any modification of the machine/process). I only need to...
I'm trying to come up with a reliable, cheap, and universal (any machine) method of monitoring the status of a tig welding unit. An auxilliary process needs to know simply when the arc is energized, and when it is deenergized. No measurement is required, and accuracy is unimportant.
For this...
I have a single cable with 24vdc pos/neg within that switches a load of approx 200ma. Is it possible to determine when that line is active (switched on and running the load) by any noninvasive means currently available? Whether Hall Effect or other transducer/transformer?
Ideally, I'd like...
