starship-design: Wirelss power transmission

[Fred Reyes <reyesfred@xoommail.com>]

I am in the process of completing a project that involves the use of 
numerous remote units within a confined are to accomplish several tasks.  
One thing that continuously bugs me is that I have to constantly replace 
or charge batteries in the power hungry units.  Since it has more to do 
with space travel than my project, I thought you may have some information 
on Wireless Power Transmission in order to minimize use of battery power.  
What follows is a short section of my notes, and I hope you can give me a 
hand:

Notes on Wireless Power Transmission

I keep finding entries that relate to high power microwave transmissions 
which I really want to avoid.  I believe that the current designs are made 
for long range transmission of very large amounts of power.  What we 
require is a short range (within one building) transmission of a 
relatively small amount of power.  The current designs are made to power 
space structures or ships and colonies.  All we will require is the 
transmission of battery power to a few remote units.

One idea is the conversion of the building into the stator coil of an 
alternator.  Inside each remote unit will be a rotor section which will 
pick up the alternating magnetic field and convert it into an alternating 
current.  This current can then be rectified and stored or used as 
necessary by the equipment.  The design is simple, but I do not have 
enough knowledge of electromagnetics to see if it may work.  What I would 
like to do is use some resources to test a small scale experiment with 
this idea in mind.  If my thought is correct, we will require a very low 
level magnetic field, probably at a high frequency.

Of course there are probably other methods of wireless power transmission, 
but this one seems to be the most feasible and economical.  Also, it does 
not involve potentially harmful microwaves.


Thanks in advance

Fred Reyes

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