Hi Chris,
Err, Umm, how about putting the charger/transmitter in a pad
that goes under a rug by the toilet?  pretty much everyone
stops by once in awhile, and the distance is controlled and
pretty short, and plenty of time.

alice

> Dear all,
>
> Sorry to keep asking questions, but I'm trying to kill several birds
> with one stone. I want to sense proximity to a receiver so that I can
> transmit telemetry data (hence the reason I asked about RFID tags), and
> also to charge the battery inductively. I wonder if anyone has any tips
> on the latter? The battery is very low capacity (20mA 3V) Vanadium
> Pentoxide Lithium.
>
> Thanks in anticipation,
>
> Chris
> --
> Dr. Chris Kirtley MD PhD
> Associate Professor
> HomeCare Technologies for the 21st Century (Whitaker Foundation)
> NIDRR Rehabilitation Engineering Research Center on TeleRehabilitation
> Dept. of Biomedical Engineering, Pangborn 105B
> Catholic University of America
> 620 Michigan Ave NE
> Washington, DC 20064
> Tel. 202-319-6247,  fax 202-319-4287
> Email: kirtley@cua.edu
> http://engineering.cua.edu/biomedical
>
> Clinical Gait Analysis: http://guardian.curtin.edu.au/cga
> Send subscribe/unsubscribe to listproc@info.curtin.edu.au
>
> --
> http://www.piclist.com hint: The list server can filter out subtopics
> (like ads or off topics) for you. See http://www.piclist.com/#topics
>
>
>
>

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
"[PIC]:","[SX]:","[AVR]:" =uP ONLY! "[EE]:","[OT]:" =Other "[BUY]:","[AD]:" =Ads