Simple temperature sensors use the static diode characteristic, but a more accurate method is to use the slope of the characteristic, this is independent of individual diode parameters, though requires a little it more electronics to display. There are many papers on this back in the 1960/70s.
Alan G3NYK ________________________________ From: Hal Murray <[email protected]> To: Discussion of precise time and frequency measurement <[email protected]> Cc: [email protected] Sent: Monday, 21 July 2014, 4:58 Subject: Re: [time-nuts] Diodes as temperature sensors [email protected] said: > Apparently, the forward biased silicon diode was temperature sensitive > enough that a small D.C. amplifier could drive a meter to read-out with > reasonable accuracy. Well, maybe not accurate by Time-nut standards but > close enough for its intended purpose. I think that mechanism is widely used for silicon temperature sensors. There is one (or more) on most modern CPU chips as well as special temperature measuring chips such as the Maxim/Dallas DS18B20 and DS18S20. -- These are my opinions. I hate spam. _______________________________________________ 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.
