UNLIMITED FREE
ACCESS
TO THE WORLD'S BEST IDEAS

SUBMIT
Already a GlobalSpec user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your GlobalSpec Experience

Finish!
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

NASA-LLIS-0438

Lessons Learned - Voyager Photopolarimeter Subsystem (PPS) Filter & Analyzer Wheel Step Problems (~1977)

active, Most Current
Organization: NASA
Publication Date: 19 July 1996
Status: active
Page Count: 2
scope:

Abstract:

Palladium is a particularly efficient catalyst for the formation of polymers. Palladium in the potentiometer wiper contacts on the Voyager Photopolarimeter Subsystem formed a frictional polymer that prevented the stepping of both the analyzer and filter wheels.

Catalytic material, including palladium-containing substances, should not be utilized in designs for sliding wipers, relay contacts, etc.

Document History

NASA-LLIS-0438
July 19, 1996
Lessons Learned - Voyager Photopolarimeter Subsystem (PPS) Filter & Analyzer Wheel Step Problems (~1977)
Abstract: Palladium is a particularly efficient catalyst for the formation of polymers. Palladium in the potentiometer wiper contacts on the Voyager Photopolarimeter Subsystem formed a frictional...
Advertisement