Geodesic Sensor Net Technical Manual page 43

Cutting the pedestal assembly of the sensor down the middle makes its construction
easier to see (Figure 3-7).
Sensor Array
The GSN 200 sensor leads are bundled with the aid of a sliding wire guide, which
they pass through on their way to terminating at the Hypertronics connector of the
sensor array.
Sensors are sewn into a geodesic tension structure of elastomer thread. The cap of the
pedestal functions as a snap-in, hold-down device that fixes the sensor in position in
the GSN 200.
Ag/AgCl Electrode Pellet
The custom-made electrodes used in the GSN 200 have been fabricated using a silver/
silver chloride or silver chloride–plated carbon electrode pellet. These materials have
low-drift properties.
Smart Nets
Users of GES 200, 250, or 300 can be aided by "Smart Net" technology. This feature
enables Net Station to sense what type of GSN is connected to the Net Amps (see
"Smart Nets" on page 87). (The GES 120 and 140 do not contain or require "Smart
Net" technology.)
Geodesic Sensor Net Technical Manual
Cap
Sponge
Pedestal
wall
Figure 3-7. Sensor cut-away view
S-MAN-200-GSNR-001 • January 31, 2007
Lead wire
Electrode
pellet
3: GSN 200
43