Hi Bert, I am thinking about testing a heat pipe on a fan cooled setup I use. The first temp controlled chassis I did used a peltier and works very well, but was a lot more work to do and is much more power hungry.
The main problem I find is not the temp controller itself, but rather the change in the temperature across the chassis as the ambient changes. However good the temp controller is, it only controls a single point, but other points further away from the sensing thermistor can vary a lot. I noticed you posted a picture of a heat pipe cooler a couple of weeks ago - did you happen to compare the temperature across the unit with direct fan cooling and the heat pipe cooler, or with different heat pipes? Angus. On Sat, 28 Jun 2014 12:37:37 -0400 (EDT), you wrote: >Will someone beside us use heat pipe. Would love to have an impendent >input. What does it take to get a test going. Scott has done a lot of work, >how >about some one else step up to the plate. There are a lot of time nuts out >there with the 5680A,many for the first time will have a very good >reference and some of our experts with proper equipment can make a big >difference. >Bert Kehren > > >In a message dated 6/28/2014 12:20:12 P.M. Eastern Daylight Time, >[email protected] writes: > >At 04:32 AM 6/28/2014, wb6bnq wrote: > >>monitoring process ? In other words have you traced out the >>connections to see what is driving the pin you think is the temperature >input ? > >No. I've only traced back from the ADC input to the voltage divider. > > >>The next big question is have you monitored the frequency and its >>stability, externally, to observe what effects are taking place when >>you disable this input to the A/D ? > >I have not. > > >>That sounds complicated and messy but may be easier than it >>appears. An appropriate container would be: > >It does sound messy. I don't think I'm willing to dunk one of my units. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
