PSN-L Email List Message

Subject: Looking for Sensors
From: Doug doug@.............
Date: Sat, 14 Aug 1999 12:41:17 -0700


Greetings,

I am working on setting up a PSN seismic station here in the santa cruz 
mountains of northern california. It should be interesting because I am
about one mile from the san adreas fault line, just 3 miles from the 
epicenter of the 89 loma prieta quake.

Larry Cochrane is putting together the interface hardware for me,
including a 3 channel amp/filter board, the SG electronics board,
radio telemetry board, GPS timing and A/D converter. 

The problem I have is locating sensors. My initial interest is for 
local event monitoring, so geophones are probably how I will get 
started. But I am also interested in setting up other sensors like 
the lehman and SG types.

I am wondering if anyone out there knows of any sources for sensors, 
either geophones, lehman, or shakleford-gunderson style sensors. If
you have any of these to sell, or know someone who does, please let
me know. I am also wondering if anyone out there would be willing to 
build me the lehman or SG type sensors, let me know.

BTW I have some live weather data from my location posted here:

 http://sensorium.los-gatos.net/

You can get a weather station from dallas semiconductor for $80 that 
includes temperature, wind speed, and wind direction. For another $50 
you can add a rain guage. They also provide free source code for 
these devices. See http://www.ibutton.com/weather/index.html. Here
are some other interesting weather related sensors:

  http://www.ibutton.com/ibuttons/thermochron.html
  http://www.pointsix.com/products/index.htm#1wireprobes
  http://www.texas-weather.com

Thanks,
Doug    

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Larry Cochrane <cochrane@..............>