REGISTER | LOGIN
Home    Bloggers    Blogs    Article Archives    Messages    About Us   
Tw  |  Fb  |  In  |  Rss
Jonathan Harris

Why All This Stringent Testing?

Jonathan Harris
jonharris0
jonharris0
8/14/2018 6:54:57 PM
User Rank
Blogger
Re: Space qualified components
Hi Jean Luc, thanks for the great comments.  Indeed there is a lot of design put into the thermal management of a satellite.  Also, the temperature range inside the satellite that the electronics and such is exposed to is typically much less.  In my experience I see requests for desired temperature ranges from -55C to +125C for components. In practice the environment is likely kept to a more limited range to provide margin to help ensure long lifetimes.  Again, great comments, thanks!

50%
50%
Jean Luc.Suchail
Jean Luc.Suchail
8/1/2018 8:37:04 AM
User Rank
Artist
Space qualified components
Even though the external of a satellite is submitted to extreme temperatures, spacecrafts have a thermal design that ensures the temperature range the equipments inside will have to face will be range typical -25 to +55 degC. Life of components in space - from a thermal point of view - will be less severe than under an engine cap of a car. However design must take care that the equipments operate in high vacuum, therefore dissipation of heat generated from the component has to be managed properly.

When we perform thermal vac tests on satellites, the thermal model and operation of the electronics is validated.

100%
0%
More Blogs from Jonathan Harris
Technically an SET could also be considered as an SEU for a high speed ADC since it is likely that an ion strike could cause an SEU that results in a transient event that we would call an SET.
Id like to take a little more time to look at SETs. There are a few more points that Id like to cover on the topic before we move on to SEUs.
Now lets move to our next SEE topic which is single event transients (SETs)
In this installment we will look at single event latch-up (SEL) in particular for high speed ADCs.
flash poll
educational resources
 
follow Planet Analog on Twitter
Planet Analog Twitter Feed
like us on facebook
our partners
Planet Analog
About Us     Contact Us     Help     Register     Twitter     Facebook     RSS