Tire sensors (was: Proc Pwr and Northstar Coolant Loss)

[CICIORA STEVEN JOSEP]

On Wed, 24 May 1995, Dave Williams wrote:

> 
> -> Pardon my ignorance, but, how do these sensors relay the information
> -> back to the main unit?  Wireless/RF transmission?  Slip Rings (I
> -> doubt it)?
> 
>  Low power RF.  If you drive past another Corvette with a flat tire,
> your own warning will go off.
>                          
> 
  Sorry, but I had to ask...  how does the (rotating) transmitter get 
it's power?  One slip ring and the chassy for ground?  Or some sort of 
generator (like the old self-winding watches)?
-Steven Ciciora