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- Path: sparky!uunet!cs.utexas.edu!swrinde!mips!darwin.sura.net!aplcen.apl.jhu.edu!news
- From: ktc@onan.jhuapl.edu
- Newsgroups: comp.robotics
- Subject: Re: balancing_act
- Message-ID: <1992Aug21.122948.11501@aplcen.apl.jhu.edu>
- Date: 21 Aug 92 12:29:48 GMT
- References: <1992Aug20.231759.6616@sagpd1>
- Sender: news@aplcen.apl.jhu.edu (USENET News System)
- Organization: Johns Hopkins University
- Lines: 8
-
- The most excellent solution to this problem is the fiber-optic Sagnac
- interferometer. I read several years ago that a French group had
- microfabricated a fiber-Sagnac sensor, but I don't know the status of the work
- at this time. The reason that the technology is so exiting is that the
- reference has 1) no moving parts 2) potentially awesome sensitivity and
- accuracy and 3) is small. More info on the basic method (used by Michelson to
- measure the earth's angular velocity) can be found in Hecht and Zajac,
- "Optics", Addison-Wesley, pp323.
-