[TriEmbed] need stupid pet trick immediately

jonjwolfe at anibit.com jonjwolfe at anibit.com
Wed Oct 15 15:14:25 CDT 2014


Not speaking from experience, but the first thing that pops into my head 
is some sort of contraption/clip from a wire coat hanger. I think they 
are reasonably heat tolerant, though you might need to pre-burn a 
coating off.

On 2014-10-15 12:44, Pete Soper wrote:
> I've got four of the typical high temp fabric-coated type K
> thermocouple probes and can't get the buggers to reliably sit with
> some tension on the top of PCBs in an oven. I can imagine many
> solutions better than the fractional hectares of Kapton tape I'm
> applying along with bending the freaking things down, then pulling
> them back up with the silly hope that they'll sit on the target board
> surface.  The kapton is of course screwing my experiment 'cause it is
> a fabulous heat insulator.
> 
> What is the proper way to do this??? The crux of the problem is
> "something" that can magically hold the last inch or so of
> thermocouple lead down against the PCB where the lead kisses the PCB
> and the thing holding it down doesn't itself hose up the temperature
> measurement process.
> 
> This is what the oven drawer looks like. As you can see, the
> thermocouple lead is threaded through the slots in the drawer, and
> with a bit of tape that keeps it from being sensitive to the drawerin
> being slid back and forth. It's that last bit of getting the thing to
> reliably sit on the PCB and not pop off and start measuring air
> temperature that's killing me. Any help appreciated.
> 
> 
> http://triembed.org/blog/wp-content/uploads/2014/10/2014-10-05-T962-Actual-With-Text.jpg
> 
> 
> -Pete
> 
> 
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