[time-nuts] Chronometer contest sponsored by IEEE Spectrum
cfharris at erols.com
Sun Dec 2 08:53:24 EST 2007
It never ceases to amaze me what a creative mind
can come up with!
Be sure that you keep the temperature extremes down to
something that would be comfortable to your skin.
And reading the watch face might be one of those minor
details that kills the project.
SAIDJACK at aol.com wrote:
> 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.
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