[time-nuts] Sidereal timekeeping
Bruce Griffiths
bruce.griffiths at xtra.co.nz
Tue May 17 01:22:09 UTC 2011
Jim Lux wrote:
> On 5/16/11 2:58 PM, iovane at inwind.it wrote:
>> Neville,
>> at present I have not enough skill with micros to solve the problem.
>> I think I will try modifying a crystal. This would not be that
>> difficult using
>> a lapping sheet or the like. And opening the can would be quite easy
>> using hot
>> air.
>
> or a fine jeweler's saw or tubing cutter.
>
> As you pointed out, the crystals are cheap, so you can afford to ruin
> a few while figuring out how to do it.
>
> (and then, remember us all, when you're a multi-billionaire having
> cornered the market on sidereal rate crystals<grin>)
>
>
Since the 32 kHz crystal is likely to be a tuning fork form, one merely
needs to shorten the tines to increase the frequency.
It may be feasible to do this without removing any of the electrode
metallization.
Bruce
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