Who wants to help read a Saturn V core stack?

[Chuck Guzis]

On 10 Nov 2008 at 11:54, John Foust wrote:

> If each core is magnetized or not, isn't there a way to measure that
> independently of actually applying current to the wires?  Today's 
> (Hall effect?) devices are fairly sensitive, no?  You could disassemble
> the stack and move a small sensor over each core.  Maybe that's
> not possible here.

There are all sorts of magnetic sensors (Hall effect, AMR, GMR, SQID, 
NMR, etc.).  ISTR that EDN had a good article on magnetic sensors a 
few months ago.  Each type has its advantages and disadvantages.  

Cheers,
Chuck