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So, these fuel sensors?
From the description on the press conference video, these seem pretty crude
devices, relying on the resistance of wire in cryogenic submesion to generate the wet signal. It does rather amaze me that so many launchers still use such devices, and that the connections to them are also so crude. Of course, in a use once environment, I suspect nobody thought about the cycling problems of tanking and untanking, but still, although I did not quite follow the description of how having four of these would impact fail dry or wet messages in the way described, I'd have thought four would be enough... I wonder if there is perhaps some mileage in the fast freading of these sensors, as any connection derived resistance changes is going to be quite a lot more rapid, I'd imagine, than the temperature sensitive element changes. So if rapid fluctuations do occur, that sensor could be masked out. Brian -- Brian Gaff....Note, this account does not accept Bcc: email. graphics are great, but the blind can't hear them Email: __________________________________________________ __________________________ __________________________________ |
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So, these fuel sensors?
"Brian Gaff" wrote:
From the description on the press conference video, these seem pretty crude devices, relying on the resistance of wire in cryogenic submesion to generate the wet signal. Poor NASA. The get crapped on for using high tech, they get crapped on for using low tech. A hint for the armchair engineers out the Crude works. Simple works. D. -- Touch-twice life. Eat. Drink. Laugh. -Resolved: To be more temperate in my postings. Oct 5th, 2004 JDL |
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