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Underground
tracking and location
GL- 505: the advanced 3-dimensional portable horizontal
drilling tracking system
The GL-505 is the portable HDD tracking system, which automatically displays
the 3-dimensional drill head positioning information in graphics. With
GL-505, you can literally see through the ground. The display information
is clear and unambiguous: it shows the position of the drill head as it
is. The GL-505 does all of the processing automatically and continuously,
providing the picture of what is going on under the surface.
Along with the positioning information, the transmitter telemetry and
the steering data are displayed: the orientation of the drill head, the
pitch, the temperature, and the battery status.
The transmitter uses the coded PSK modulation, which allows operating
the tracker in the conditions of the severe interference from the power
lines, industrial equipment and such. The operating frequency is optimized
for the maximum locating distance.
The GL-505 family includes the locator, the wireless remote display for
the operator of the HDD rig, and the variety of the downhole transmitters.
The
locator was build using the BlackFin™ BF-531 DSP from Analog Devices.
The DSP is running the sophisticated algorithms required to "see"
through the ground.
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