Right, I had just applied power and the board was just laying on the desk. It will probably be much warmer when it's inside an insulated box drawing 5-6 watts of power. (The box is insulated with about 0.2" of some insulating plastic material.)
/mats On Mon, Jul 27, 2009 at 12:27 AM, David C. Partridge<[email protected]> wrote: > 24 degrees C for the temperature doesn't sound right unless you only just > applied power - I'd expect somewhere around 45C. > > Dace > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of Mats Engstrom > Sent: 26 July 2009 19:14 > To: [email protected] > Subject: [time-nuts] Thunderbolt temperature measuring > > Hi, > > I've been lurking on this list for a long time but now it's time to unlurk. > > I don't remember if it's appropriate to introduce oneself on this list, but > I'll do it anyways. :) > > I've been tinkering with electronics for some thirty odd years now - mostly > just as a hobby but also occasionally semi-professionally. > Most of my stuff is microcontroller based (AVR and/or PIC) - mostly in > assembly,but C is also ok for some projects - higher level languages are for > whimps :). I'm Swedish by birth but living and working in Dubai in the > IT/Finance industry since a couple of years. > > I just bought a Thunderbolt from flyingbest at Ebay to use as a nice > timebase for my counters and signal gens. I discovered that it had a bad > DS1620 tempsensor that always reported -55 C so I replaced it with a > thru-hole version that I happened to have some spares of. I then got a nice > 24.xxxxx C temperature readout in Lady Heather. (When I tested the tbolt > without the DS1620 it reported a temperature between -0.5 to > -1.5 C) > > Now I'm finally coming to the question: Since I'm using a thru-hole version > of the DS1620 and have to use cables between the chip and the circuit board > I could possibly extend the cables a bit so I can glue (with a non > termo-insulating glue) the chip onto the ocxo itself to have a tighter > coupling between them. Would that improve the stability or is it better to > just measure the air temperature in the box? > > /mats > > _______________________________________________ > 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. > > > _______________________________________________ > 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. > -- Mats Engstrom, Nerdlabs Consulting , http://www.nerdlabs.se _______________________________________________ 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.
