PSN-L Email List Message
Subject: RE: Optical position indicator idea
From: "Coleman, Allan" allan.coleman@............
Date: Tue, 17 Aug 2004 07:39:46 -0700
Chris,
=20
Have you seen the development work done by Scripps, regarding their =
"experiments with an optical seismometer", based on a fringe resolver =
using fiber optic interferometry? The design is beyond the capability of =
most amateurs, but it is an interesting read. You can see details of =
their design at:
=20
http://gravity.ucsd.edu/research/OFSEIS/opt_seis.html
=20
Regards,
=20
Allan Coleman
-----Original Message-----
From: psn-l-request@.............. =
[mailto:psn-l-request@................. Behalf Of ChrisAtUpw@.......
Sent: Monday, August 16, 2004 6:53 PM
To: psn-l@..............
Subject: Re: Optical position indicator idea
<<<<<>>>>>=20
If you try to use interference fringe methods, your resolution will be =
limited, commonly to a fraction of a micron. =20
Regards,=20
Chris Chapman=20
Chris,
Have=20
you seen the development work done by Scripps, regarding =
their "experiments with an optical =
seismometer", based on a fringe resolver using fiber optic=20
interferometry? The design is beyond the capability of =
most=20
amateurs, but it is an interesting read. You can see details of their =
design=20
at:
Regards,
Allan=20
Coleman
<<<<<<SNIP>>>>>&g=
t;
If you try to use interference =
fringe=20
methods, your resolution will be limited, commonly to a fraction of a =
micron.=20
=
Regards,=20
Chris=20
Chapman=20
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