| Description
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A
laser beam is transmitted by using the so-called
phase-difference method and supplies range
values as
well as reflectance
values.
The measuring process can be
carried out irrespective of the lighting
conditions.
With this spot measurement system a
medium range of
up to 79 m can be covered and, at the
same time, an
absolute accuracy of millimetres can be
achieved. In
addition to the range, the amplitude of
the detected
scattered light is digitalised. As a
result of constant
transmitter signal amplitude, this
amplitude is equivalent
to the reflectivity value of the object.
Range and reflec-
tance values are measured with the same
receiver at the
same time, so that they directly
correspond to one single
data point in space (”pixel
correspondence”).
Both values are more or less independent
from environ-
mental influences (ambient light etc.)
due to the auto-
nomous, active illumination with laser
light. The measure-
ment system is designed to scan 500,000
points per
second and thus enables a very fast
measuring of an
environment with many little details.
The LARA Measurement Systems are an
integral part of
all profiling and imaging systems.
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