Laser Technology TruSpeed LTI 20/20 - Sensors; LCD Screen; Serial Port; Sighting Scope

Section #1 - Getting Started
Page 5
Sensors
The TruSpeed has two lenses on the front panel. The top lens transmits the
infrared laser signals. The bottom lens receives the signals back from the target
and feeds signal information to the internal circuitry.
The internal circuitry consists of a laser range sensor and timing, analysis,
computation, and display circuits. The TruSpeed determines distance through its
laser range sensor, by measuring the time of flight of short pulses of infrared
light. The TruSpeed has a broad spectrum of sensitivity and can work with both
reflective and non-reflective targets. The maximum measurement distance varies
with target and environmental conditions.
• The absolute maximum is about 650 meters.
• Long Range (optional feature) absolute maximum is about 1,200 meters.
LCD Screen
The LCD Screen displays menu items, option indicators, error codes, and speed
measurement results.
Serial Port
Your TruSpeed includes a serial port located on the rear panel. The serial port
allows you to connect the instrument to a data collector or remote computer.
For information about the Serial Data Interface, see page 35.
Sighting Scope
Mounted on top of the TruSpeed is a single-power sighting scope.
• The polarizing light filter is adjustable to
optimize viewing contrast. Figure #2 shows
the polarizing light filter's adjustment ring.
• The in-scope aiming reticle helps you aim
accurately to the target. Figure #3 shows
reticle. This reticle represents the size of
the laser beam.
• In-scope speed measurement display.
You can vary the intensity of the
^ aiming reticle to account for different
lighting conditions. For more information,
see page 13.
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Figure #3