The sensors that Fat Quarters sells are MOST CERTAINLY fluxgates!

Doug

On Fri, 4 Feb 2000, Jim Hannon wrote:

>  See site for details of suitable fluxgate 
> >sensors:- http://fqs.dconn.com/Electronics/sensors.htm 
> >    Descriptions of amateur constructed fluxgate equipment have been 
> >published. Magnetic field changes may be of interest to Ham Radio operators 
> >and to astronomers.
> >
> >     Regards Chris.
> >
> The sensors that Fat Quarters sells are probably not fluxgate sensors.
> The are most likely magneto inductive sensors. Precision Navagation 
> http://www.precisionnav.com/sensormain.html holds
> some patents on this technology. See
> http://www.patents.ibm.com/patlist?icnt=US&patent_number=4851775
> and http://www.patents.ibm.com/patlist?icnt=US&patent_number=5239264
> 
> Also this link has a brief description of the operation of the
>  magneto inductive sensor.
> http://www.pacific.net/~brooke/Sensors.shtml#Magneto-Inductive
> 
> Jim Hannon
> http://soli.inav.net/~jmhannon/
> 42,11.90N,91,39.26W
> WB0TXL
> 


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