NASA-LLIS-0574
Lessons Learned – Eliminate Potentiometers from Flight Critical Position Indicators (1995)
active, Most Current
| Organization: | NASA |
| Publication Date: | 31 July 1997 |
| Status: | active |
| Page Count: | 2 |
scope:
Abstract:
Potentiometers (pots) are low reliability items. Yet Mars Global Surveyor used 8 pots for confirming solar panel deployment that were non-essential, yet a single failure could have jeopardized the mission. Eliminate potentiometers from deployment designs unless intermediate position readings are essential and the spacecraft lacks a redundant sensor.
Document History
NASA-LLIS-0574
July 31, 1997
Lessons Learned – Eliminate Potentiometers from Flight Critical Position Indicators (1995)
Abstract:
Potentiometers (pots) are low reliability items. Yet Mars Global Surveyor used 8 pots for confirming solar panel deployment that were non-essential, yet a single failure could have...