I was looking around on the web and found a good source for magnetic sensors,
and others at: http://www.vernier.com
Peter

ChrisAtUpw@....... wrote:

> In a message dated 03/02/00 01:03:51 GMT Standard Time, pho@...........
> writes:
> << Do you have a source for a microbargraph? Peter >>
>
>     For a general review of Infrasound sources, applications and
> developments, see www4.etf.noaa.gov/infra/infrasonic.html
>     There is an Infrasound detector described at
> http://www.tiac.net/users/shansen/belljar/content.htm which used an MKS
> Instruments Barotron Type 223 0.2 mm Hg detector. www.mksinst.com. I can
> suggest some improvements.
>     Arie has a prototype Infrasound detector on his site. I am also
> interested and have quite a lot of further info. I wasn't feeling very rich
> either.
>
> For magnetic fluxgate sensors, Arie reported :-
> >>The design is based around the sensitive FGM-3 and FGM-3h sensor. They are
> good buy, around $40 US.  http://fqs.dconn.com/Electronics/sensors.htm
>
>     Regards Chris Chapman
>
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