Hi Philip, On Sun, 2008-08-10 at 22:45 +0100, Philip Pemberton wrote:
> As far as temperature regulation goes, I'm going to use a PIC > microcontroller (one of the 8-pin chips with an A/D converter) to monitor the > temperature of the crystal, and use a PID loop to control the two power > transistors to maintain a temperature of 50C +/- 2 Celsius (the accuracy spec > of the temperature sensor). I also have other higher-accuracy sensors (Dallas > DS18S20 and DS18B20) that I can calibrate with; these are accurate to around > half a degree Celsius with a resolution of 0.5C. Here is an example of a kind of synthetic TCXO using Dallas temp sensors. http://www.ijs.si/time/temp-compensation/ The resolution of the DS18x20-sensors are better than 0.5C. -- Björn _______________________________________________ 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.
