Measurement Accuracy
15
www.ocularrobotics.com
Ocular Robotics Ltd
4
Measurement Accuracy
4.1
Angular
The RE08 laser scanner natively records 3D data in spherical coordinates of
range,
azimuth
and
elevation
and also provides
intensity, reflectance
and
pulse width
for each
data point. The accuracy of the two angular components of
azimuth
and
elevation
along
with the
range
measurement determine the accuracy with which each data point can be
placed in 3D space.
The angular resolution of both the
azimuth
and
elevation
components is 0.0025°. The
reporting accuracy is <0.01° for both
azimuth
and
elevation
. The accuracy of the
reported
azimuth
and
elevation
aperture angles is independent of any path following
errors of the aperture. This means that regardless of what type of scan mode or
azimuth
and
elevation
rates are set the angular accuracy of the positions of the points reported
by the RE08 are unchanged.
4.2
Range
The laser range finding module accurately measures range to a wide variety of surfaces
and materials. The rangefinder achieves measurement accuracy nominally of ±14mm ,
±10mm and ±8mm in High Speed, High Range and Extended Range Mode respectively,
however measurement accuracy for any particular scenario will be determined by
factors such as the nature of the surface being measured and ambient light levels.
NOTE
– The RE08 laser scanner has a minimum range of 1 m from
the aperture regardless of measurement mode. Objects within 1 m
might be resolved based on the surface properties but performance
is not guaranteed.