[time-nuts] Chronometer contest sponsored by IEEE Spectrum
SAIDJACK at aol.com
SAIDJACK at aol.com
Sat Dec 1 13:28:14 EST 2007
In a message dated 12/1/2007 07:23:05 Pacific Standard Time,
cfharris at erols.com writes:
>Twiddling the trimmer on those watches that do have one (really old watches)
>is not the right way to do the job. You will waste an incredible amount of
time
>moving the trimmer, and waiting only to find that you overshot your mark.
Here
>is the correct way to do it:
Hi guys,
no one should have to open their $xxx expensive writswatch without the
proper equipment. I have a watch that I gave to a less than exemplary watchmaker,
and he actually managed to scratch the back significantly trying to open it.
Us time-nuts should have better ways to do this!
Here is my proposal:
How about designing a thermal enclosure with Peltiers that can both heat the
inside and cool it. It could look like one of those automatic high-end
watch-movers for mechanical watches.
Then design an electronic camera system that reads the face of the watch,
determines the time-offset, and adjusts the temperature inside the oven to pull
or push the watches' crystal as needed to compensate for any drift that
happened on the previous day.
Every night when the watch is placed into the unit, it get's calibrated by
having the oven raise or lower the temperature as appropriate. The software
could even adjust for the next day's expected drift by advancing or retarding
the time as appropriate..
Doesn't seem too difficult to build.
Of course setting the trimmer so that the watch is as accurate as possible
would help this contraption by having to work less hard to pull the watch.
bye,
Said
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