Selfrunning cold electricity circuit from Dr.Stiffler

[Loki67671]

@plengo
I have been told that if one can get away from the normal routine that it should be called a vacation. Lets say a working vacation, private jet with wet bar, yes it must be called a vacation.

Looking forward to your work, some great things coming up so if you find you need to move on, there is some good things in the wings.

@Loki
Wow, an LJ, thats great and you will get some useful software with it. You will enjoy using it and find all kinds of use for it. I forgot about something on your cal of you T sensors. if they are water proof, just call in a water bath.

I to know for a fact much work is being done, but not even the big nasties......

@Dr Stiffler,
Yes sir, after extensive searching and some testing the USB based DAQ's are the way to go. DGH DAQ's work but require too much programming for now. I don't have the time for that at this point. LJ beats MCC by a fair margin in price for what appear to be very similar USB instruments and the ease of use is awesome. It will be purchased very shortly but until then I will continue to develop using the MCC.

Yes there is still RF and lord knows what else at my supply therefore I would be making incorrect measurements. You will see quite a different power supply with the LPF and sensing amps and ample decoupling built into it, driving for the test runs. This sprawling layout isn't going to cut it either.  Might as well build reusable test rigs while I'm at it. The temperature sensors are built waterproof so water bath calibration will work for sure. Thanks for the tip. I'm going to be using a 200-Ohm, 3-Watt ceramic power resistor sitting next to the SEC for calibration of the calorimeter and will very likely be looking at trying some preliminary runs with DC and the resistor this weekend. We'll see the performance with 2 watts dissipated in the resistor. If those look good we'll fire up a SEC heat run not to long after and start eliminating the errors. I have some 50 mili-Ohm sensing resistors that will be used with a current sense amp and an IA sampling supply voltage across a hi-R voltage divider. I'm getting close. Slowly, I know, but? A far cry from toys or novelty items. Hell you have a following, a silent one, of EE's. The big nasties..................what have they found? Hmmmm. I've definitely learned to stop touching the hot parts. LOL My hands are almost completely healed, for now.

Best regards,

Jim

 

[samedsoft]

I'm just finding the 1 wire stuff fascinating, forgive me, I'm a nub in these areas.  I just started powering up the board, and can see lots of possibilities.  I await to see the next steps from everyone , Stiffler as always your audience is far bigger than the activity here.

@Freezer,

   Can you show the connection diagram? What are the tweaks you have done one by one?

   Also can you you explain what is the circular thing between the power supply and SEC 3 board?

[Loki67671]

@Freezer,

   Can you show the connection diagram? What are the tweaks you have done one by one?

   Also can you you explain what is the circular thing between the power supply and SEC 3 board?

Samedsoft
That HEX shaped object looks like wire management to me but I was up until 03:00AM so?
Dr. Chukanov or "someone" fixed the BL document and added some content to the website. Fascinating. Thanks for the link.

It's back to work for me.

Best regards,

Jim

[Loki67671]

@All,
Anyone specializing in scientific / lab SW development or SW dev. in general that is willing to donate some code please PM or e-mail me if you would. I have a little project for you that might be worth your while. 

Best regards,

Jim

[DrStiffler]

@Freezer,

   Can you show the connection diagram? What are the tweaks you have done one by one?

   Also can you you explain what is the circular thing between the power supply and SEC 3 board?

@All
Just so "Freezer" is not made suspect for my improper choice of words when I asked him to contact me so I could critique his work, what I should have said was 'Hey Freezer I have some stupid questions can you help me out?'

The 'Freezer' circuit is well above board, no trick or gimmicks, he is doing a great job or learning about the SEC Theory and the strangeness of it all.

So feel free to ask him questions, but not thinking I found anything wrong with the picture, I just wanted to understand myself about a few things.