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- Path: sparky!uunet!cis.ohio-state.edu!news.sei.cmu.edu!fs7.ece.cmu.edu!crabapple.srv.cs.cmu.edu!roberts@cmr.ncsl.nist.gov
- From: roberts@cmr.ncsl.nist.gov (John Roberts)
- Subject: Re: fiber optic cable
- Message-ID: <C0ozH8.4p4.1@cs.cmu.edu>
- X-Added: Forwarded by Space Digest
- Sender: news+@cs.cmu.edu
- Organization: National Institute of Standards and Technology formerly National Bureau of Standards
- Original-Sender: isu@VACATION.VENARI.CS.CMU.EDU
- Distribution: sci
- Date: Mon, 11 Jan 1993 13:43:21 GMT
- Approved: bboard-news_gateway
- Lines: 31
-
-
- -From: Mark.Perew@p201.f208.n103.z1.fidonet.org
- -Subject: Fiber optic umbilical
- -Date: 4 Jan 93 15:30:14 GMT
-
- -Putting a fiber optic umbilical on a remote sensing platform designed to
- -traverse rough terrain seems very odd to me. Can someone explain to me why
- -this was done? A few things come to mind such as eliminating the weight
- -required for a radio and associated power supply. Also the fiber optic does
- -allow for high reliability and high speed data transfer.
-
- -I'm *not* throwing stones at the Dante folks. I'm just doing some head
- -scratching and hoping someone will explain this to me.
-
- Well, one thing for sure - plans for an Earth-Mars fiber optic link
- will have to be scrapped. :-)
-
- I can imagine the Dante team trying to straighten out the cable by hand,
- and that tiny, heartbreaking "snap" (or maybe they didn't hear anything
- at all). Commercial fiber optic cable is great in stationary applications,
- but it's too easy to stretch it or bend it beyond the radius of curvature
- limits. The people who install our fiber optic links put up warning signs
- with a drawing of a hangman's noose, implying what will happen to anybody
- who tries to move the equipment. :-)
-
- Does anybody (the phone companies or the military, for instance) use
- fiber optic cable that's stiff enough to reduce the risk of breaking?
-
- John Roberts
- roberts@cmr.ncsl.nist.gov
-
-