Usage - Leica tps1100 Reference Manual

GeoCOM Reference Manual
16.1

USAGE

16.1.1 Inclination measurement/correction
The TMC module handles the inclination sensor data and correction. To get exact
results (co-ordinates, angles, distances) the inclination of the instrument must be
taken into account. In general, there are two ways how this can be done:
Measuring the inclination
Calculating the inclination
For a limited time of several seconds and a limited horizontal angle between 10
and 40 degrees (depending on instrument type) an inclination model is generated
to speed up measurement. The model for the inclination is based on the last exact
inclination measurement and is maintained within the TMC as a calculated
inclination plane.
To control the kind of generating the results, all measurement functions have a
parameter (of type
selected. The different measurement modes are:
:
TMC_MEA_INC
Measures the inclination (in any case). Use this mode by unstable conditions like
e.g. the instrument has been moved or walking around the instrument may
influence on an unstable underground (e.g. field grass). The disadvantage of this
mode is that it is about half a second slower than
TMC_PLANE_INC
Calculates the inclination (assumes that the instrument has not been moved). This
mode gives an almost immediate result (some milliseconds).
:
TMC_AUTO_INC
The system decides which method should be used (either
TMC_PLANE_INC
accuracy with this mode, the instrument checks the conditions around the station.
We recommend taking this mode any time.
Note that the results depend on the system's configuration, too. That means that
the compensator must be switched on in order to get a result with inclination
correction (see
TMC_SetInclineSwitch
functions holds information about the quality of the result. E.g. it is reported, if the
compensation of inclination could not be done.
TPS1100 - Version 1.05
Theodolite Measurement and Calculation - TMC
TMC_INCLINE_PRG
:
). You get the best performance regarding measure rate and
), where the inclination mode can be
TMC_PLANE_INC
). The return code of the measurement
.
or
TMC_MEA_INC
16-2