How big is this thing supposed to be? Depending on the mass, crawling back up a fire optic cable is almost guaranteed to break it. Fiber is small and it does not have a lot of tensile strength.
Joe On Mon, 2002-10-28 at 13:42, Reeve, Jack W. wrote: > > A little additional thought would be to enshroud the data fibers with a > metallic outer wrap, then energize that for heat for repositioning and > distressing in the event of ice movement. Another potential advantage of a > light cable spooled out from the probe is it would give the probe purchase > upon which to climb in the event of the need to choose another path due to > massive planar inclusions or other significant obstacles. > > The notion of harnessing the radiation fields present to generate electrical > energy is very intriguing. If that were possible, the tether AND the probe > could be energized from a surface mechanism, thereby allowing the tether to > be spooled out from the surface, freeing the probe of this burden. > > Jack > > -----Original Message----- > From: Robert J. Bradbury [mailto:bradbury@;aeiveos.com] > Sent: Monday 28 October 2002 13:49 > To: [EMAIL PROTECTED] > Subject: RE: Radio control v. Wire... and 1 part or 2? > > > > On Mon, 28 Oct 2002, Reeve, Jack W. wrote: > > > A few miles of light-transmitting fiber spooled out behind the cryobot > > shouldn't weigh any more than the proposed transmission "pucks". Also, if > a > > metallic filament were adjacent the optical line(s), it could be > > periodically heated to reposition and de-stress itself in the event of ice > > movement. > > That appears to be what NASA did with its Antarctic missions, but they > didn't attempt to heat the wire. They used heated water drilling to drill > a big hole then lowered the probe down the hole attached to fiber optics > as best I can tell. Review the slides from the URL I posted earlier. > > Robert > > > == > You are subscribed to the Europa Icepick mailing list: [EMAIL PROTECTED] > Project information and list (un)subscribe info: http://klx.com/europa/ > == > You are subscribed to the Europa Icepick mailing list: [EMAIL PROTECTED] > Project information and list (un)subscribe info: http://klx.com/europa/ == You are subscribed to the Europa Icepick mailing list: [EMAIL PROTECTED] Project information and list (un)subscribe info: http://klx.com/europa/
