Geokon 6350, Installation Manual, Page: 8 / 26

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1.2 Tilt Sensor Construction
The sensor is comprised of a pendulous mass, which is supported by a vibrating wire strain gage
and an elastic hinge. See Figure 2. The strain gage senses the changes in force caused by rotation
of the center of gravity of the mass. The mass and sensor are enclosed in a waterproof housing,
which includes components for connecting the sensor to the mounting bracket. The housing is
constructed using stainless steel tubing to minimize the effects of corrosion. Biaxial systems use
a mounting bracket to mount two transducers at 90
°
to each other. In environments subject to
vibrations, a damping fluid can be used, as shown in the figure below.
Figure 2 - Model 6350 Tilt Sensor
To prevent damage during shipment the tilt sensors are locked in place by means of a
slotted head locking clamp screw. This slotted head locking clamp screw must be removed
and replaced by a Phillips head seal screw (provided), to render the tiltmeter operative.