Originally Posted by
wiggy
Just excuse me for asking if I've understood that comment- I'm sometimes hard of reading...
.
You are saying you were flying a piece of kit around in a presumably vibrating aircraft, presumably in turbulence, and nevertheless it was still measuring "g" to an accuracy of one in a million ...If that was the case colour me very very impressed..in simple terms how the heck did it do that? ( simple explanation or a suitable link to one will do)
Gravity system which mesures difference of gravity in the subsurface. The aircraft can fly up to a certain threshold of turbulence, not very high usually and still produce good data.
This kind of instruments where initially used as navigation systems in nuclear submarines back in the 80's since they are passif.
Then someone at Lockheed Martin had the idea of throwing it inside an aircraft.
Actually they had it in a van and they strapped the van inside a C-130....