FARO
®
Laser Scanner Manual
87
Chapter 7: Controller Software
The barometric height sensor (altimeter) determines the altitude of the current
scanner position. The altitude determination is based on the measurement of
the atmospheric pressure. The measured altitude is attached to each scan
and can be used for the scan registration in SCENE (see SCENE user manual
for more information). If you want SCENE to automatically use the measured
altitude for the scan registration, switch the
Use Altimeter
button to ON, else
switch it to OFF. This setting affects the current scanning parameters and has
the same function as the equivalent button in the parameters settings.
Setting the Scanning Parameters
To see the currently measured altitude on this screen, the use of the altimeter
must be switched ON.
For scan registration it is sufficient to know the difference in altitude of the
various scanner positions. Before starting your scan project, you should pick a
position of your scanning site which you would like to use as the reference for
the altitude measurements. Move the scanner to this reference position, enter
any height you would like to use for this position and reset the altimeter to this
reference height by taping on the
Sync Reference Height
button. All further
altimeter measurements will then be done on the basis of this reference
height.
If you want comparable height measurements across different projects, you
can sync the altimeter with a real altitude. For this, pick a reference position of
your scanning site where you know the approximate
altitude above sea level
.
You can get this value from GPS, a topographic map, or from Google Earth.
As the altimeter determines the altitude based on the measurement of the
atmospheric pressure, changes in the air pressure caused by changing
weather conditions have an effect on the resulting altitude. To have precise
altitude measurements, you should therefore check the reference altitude from
time to time, at least at the beginning of each project day or if you experience
changes in the weather. To do this, move the scanner to your reference
position again and compare the altitude reading with the reference height. If
there is a difference, sync the altimeter with the reference height again.
Summary of Contents for FocusM 70
Page 6: ...FARO Laser Scanner Manual 1...
Page 12: ...FARO Laser Scanner Manual 7...
Page 58: ...FARO Laser Scanner Manual 53...
Page 132: ...FARO Laser Scanner Manual 127...
Page 146: ...FARO Laser Scanner Manual 141...
Page 156: ...FARO Laser Scanner Manual 151 Chapter 12 Disposal Figure 12 114 WEEE Symbol...
Page 166: ...FARO Laser Scanner FocusS Manual 161...
Page 170: ...FARO Laser Scanner Manual 165...
Page 172: ...FARO Laser Scanner Manual 167...
Page 193: ...Appendix F Certifications...
Page 194: ...F 1 CE Conformity...
