[snip] >> That will give you a static match, not necessarily a dynamic match. >> Consider if you filled the Dewar with mercury. >> > Certainly a thermos of mercury would have much different thermal > behaviour than an oscillator, but I don't have a thermos of mercury. I > think what you're getting at is whether my replacement thermal system > has similar dynamic thermal characteristics to the original.
Yes. You should, IMO, try to match the heat leak and the thermal inertia to keep the loop dynamics the same. > Unfortunately, there's no way for me to test that since the original is > smashed. Static comparison is all I can do. You can try to keep the Dewar internals as near as possible to the original. That and the leakage should roughly do it. Best, -John ============= >>> Of course, if you go too far in reducing the current, the oven could >>> overheat. The oscillator includes a precision thermistor to monitor >>> the >>> temperature of the oven to prevent this. >>> >>> Any comments? >>> >>> Ed >> Good luck. >> >> -John >> > Thanks. This is turning into an interesting project. > > Ed > > > _______________________________________________ > 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.
