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Programs
TPS400-5.0.1en
Measuring facilities
Single face I or II or dual face I + II measurements
are always possible. No specific point sequence or
specific face sequences are required.
Gross errors checks are made for dual face
measurements to ensure the same point(s) are
sighted with the other face.
)
If a target point is measured several times in
the same telescope position the
last valid measure-
ment
is used for computation.
Measurement restrictions:
•
2 face measurements
When measuring the same target in both faces,
the reflector height may not be altered when
changing the telescope position.
•
Target points with 0.000 height
Target points with 0.000 height are discarded for
height processing. If target points have a valid
height of 0.000 m, use 0.001 m to enable it for
height processing.
Computation procedure
The measuring procedure automatically determines
the method of evaluation, e.g. resection, 3 point
resection, etc.
If more than the minimum required measurements
are performed, the processing routine uses a least
squares adjustment to determine the plan position
and averages orientation and heights.
1. The original averaged face I and face II
measurements enter the computation process.
2. All measurements are treated with the same
accuracy, whether these are measured in single
or dual face.
3. Easting and northing is determined by the
method of least squares, including standard
deviation and improvements for Hz-direction
and horizontal distances.
4. The final height (H) is computed from averaged
height differences based on the original
measurements.
5. The Hz-circle orientation is computed with the
original averaged face I and face II measure-
ments and the final computed plan position.
