Section #8 - Glossary -
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Section #8 - Glossary
beam divergence
:
The tendency of a laser beam to expand in
diameter as it moves away from the source,
measured in milliradians (mrad).
Continuous Mode
:
Alternate speed measurement mode. Allows you
to take several successive readings of a target
vehicle. Re-trigger for each new target.
See
Delta Distance Test
:
Optional Feature. Uses two measurements each
to a known distance to verify the measurement
accuracy of the TruSpeed. See
Display Integrity Test
:
Allows you to verify that all segments of the LCD
screen are operating. See
Fixed Distance Test
:
Uses one measurement to a known distance to
verify the measurement accuracy of the
TruSpeed. See
laser
:
L
ight
A
mplification by
S
timulated
E
mission of
R
adiation.
lidar:
A device that is similar in operation to radar, but
emits pulsed laser light instead of radio waves.
microcontroller
:
The computer processor that controls all of the
functions of the TruSpeed.
Receive Lens
:
Located on the front panel of the TruSpeed, it is
the bottom lens and receives the signals back
from the target and then feeds the signal
information to the microcontroller.
reticle
:
A scale located in the sighting scope that helps
you aim to your target. It is visible when the
TruSpeed is powered ON. You may need to press
the TRIGGER to see the reticle. See
Transmit Lens
:
Located on the front panel of the TruSpeed, it is
the top lens and transmits the infrared laser
signals.
Weather Mode
:
Alternate speed measurement mode. The laser
only acquires targets that are beyond the range
where weather affects the laser’s ability to
capture a speed reading. Targets must be at a
distance greater than 61 meters. See
Zero Velocity Test
:
See
Fixed Distance Test
.
