Thermal electric cooler kit intrest?

[MisterWilling]

I got my kit, thanks! I will have it built and in use soon.

[catalanjo]

Hi, has anyone built their kit and measured the hysteresis on their homemade module ?

Really interested to hear results from different setups.

Cheers

[MechEng3]

Couple left if any others iterested....would also like to see some results

[hobbybob]

Hi Mike,

Received the kits, thanks !
Can you point me out to a a schematic or something ?
I know it's only a few parts, but i totally missed it or something.
I do use medication for my back aches, so i am bit goofy now, but i seem to have missed it.
Any help how to built the kits is welcome (i didn't loose my soldering skills ;-)

Kind regards,
dimitri

[blowfly]

Mike, I will get moving on the TEC kit in a few weeks and post some results. I'm working on getting my CDRH paper work done right. Just finished the operation and maintenance manual. Variance application is done too. This is my current queue:

• Finish product report. I'm on section 7 so this is mostly done.
• Print manufacturer sticker
• Write show report
• Package everything up and send it off to the FDA

Once I get the paperwork submitted I'll start building my TEC cooled 445nm. Thanks again.

Mike

[catalanjo]

Couple left if any others iterested....would also like to see some results

I am definitely interested in a couple but shipping would be to UK or Spain

Can be with or without peltier or one of each (whichever easier for you).

I can also reship to others here if necessary.

Please PM me if this is agreeable to you Mike.

Cheers

[weartronics]

Hi, has anyone built their kit and measured the hysteresis on their homemade module ?

Hi catalanjo, This design uses proportional control without hysteresis. Best regards, Nic

[dnar]

Hi catalanjo, This design uses proportional control without hysteresis. Best regards, Nic

This is true. As such, there will be an offset error as P only never achieves the actual set point. It should be pretty good, I am interested to see how much P gain this simple setup provides as it could be all one requires for cooling of LD's to within a few C (not cystals).

[catalanjo]

This is true. As such, there will be an offset error as P only never achieves the actual set point. It should be pretty good, I am interested to see how much P gain this simple setup provides as it could be all one requires for cooling of LD's to within a few C (not cystals).

This seems to be the same kind of situation as with positional feedback scanners where the pointing error is used to calculate the scanner signal or for etalon heaters working in a similar way.

What I can not see is how you detect "hunting" and what kind of frequency and amplitude this will occur at.

Maybe I should just "suck it and see".

Cheers

[catalanjo]

Kits have arrived in UK today .... Thanks Mike

No schematic though

Your cryptic note:
"http://www.photonlexicon.com/forums/...-thread!/page3 look at the Weartronics post...that is how it is done. "

didn't really lead me anywhere ! Am I missing something here ?

Cheers