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Re: Ultraviolet Degradation

In a message dated 3/8/00 12:57:23 AM Mountain Standard Time, 
ornitz@tricon.net writes:

> Cliff Buttschardt, K7RR, asked:
>   >We need a material that can wrap around this small cube similar
>   >to a rubber band around a newspaper and restrain the antenna 
>   >elements that are to "pop" out at {after?} launch.  We need a 
>   >material that is VERY susceptible to UV radiation rather than UV 
>   >resistant.  The idea here is to allow the antennas to deploy when 
>   >enough UV from the sun degrades the antenna restraint in orbit.  
>   >Got any ideas what material to use?      

Rather than attempting to use UV which takes a lot of time, why not use a 
magnifying lens to concentrate heat on the polymer when it faces the sun. 
This would be equivalent to the Stensat approach, but completely passive.

Lee Devlin, KØLEE  (K0LEE)
Greeley, CO
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