[time-nuts] Tiny Atomic Clock
Richard (Rick) Karlquist (N6RK)
richard at karlquist.com
Tue Aug 31 03:42:56 UTC 2004
This project has been around for years. Even though
it uses cesium, it is more similar to traditional rb
standards than cesium beam standards; ie it is NOT a
primary standard. They are using different physics
to eliminate the size restrictions of a microwave cavity
that have limited the size of rb standards. It isn't
clear how this thing is going to be accurate without
ovenization.
Rick Karlquist
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com]On
> Behalf Of John Ackermann N8UR
> Sent: Sunday, August 29, 2004 9:38 AM
> To: time-nuts at febo.com
> Subject: [time-nuts] Tiny Atomic Clock
>
>
> Just saw (via Slashdot) this news release about a new "chip
> scale" Cs standard. The physics package is about the size of a
> grain of rice, and the whole thing is the size of a modern OCXO.
> Initial stability is about 1x10e-10, but they think it'll improve
> significantly from that.
>
> http://www.nist.gov/public_affairs/releases/miniclock.htm
>
> 73,
> John
>
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