2-D Laser Scanner
Appendix
2
0
1
6
-0
1
37
The measurement on a white (90 % reflectivity), natural surface is based on a
vertical angle of incidence and an emitted beam that hits the measurement object
with its full geometry.
If the emitted beam is at an entrance angle of 60
°
...70
°
on the reflector foil, the
measured value drops by approximately 50% compared to the value for a vertical
entrance angle.
10.4
Pulse Ranging Technology (PRT) Glossary
10.5
Using Open Source Programs
Fuchs uses a range of open source software in the R2000 laser scanner.
This relates to the programs listed individually below under 1 to 12. We have
edited programs 1 to 4:
1. U-Boot
2. Blackfin uClinux
3. Xenomai
4. Mongoose Webserver
5. Libedit
6. Giflib
7. Libncurses
8. ST Standard Peripherals Library
9. ARM CMSIS Header
10.IAR LIBC
11.AVR LIBC
12.CRC Bibliothek
You can use all programs in accordance with the respective license. The licenses,
their exact scope, and the respective exclusions of liability can be found in the
header of the files themselves.
Accuracy
The degree to which the measurement result corresponds to the true
value of the measurement. The accuracy is a relative deviation based on
a measurem ent standard. For practical applications, a distinction is
drawn between different influencing factors.
Absolute accuracy
Specifies the total of all systematic measurement errors (e.g., linearity,
device offset) over a defined distance, reflectivity range, and
temperature range that cannot be eliminated by other actions, such as
averaging.
Repeat accuracy (repeatability)
The measurement is repeated under the same conditions on the same
target. The deviation is the repeatability value. The measured value
signal noise is not taken into account.
Measured value signal noise
Randomly distributed deviation of a measured value by an average
value. The distribution of the individual measurement values typically
follows a statistical normal distribution.
Measurement range
The range between the smallest and largest object distance in which the
measuring instrument supplies readings within the specification.
