Page 85 - Lehrbuch Neigungsmessung deutsch 2018.indd

COMPENDIUM INCLINATION MEASUREMENT
WYLER AG, WINTERTHUR / SWITZERLAND

6.4.11 RELATIVE AND ABSOLUTE MEASUREMENTS / LONG-TERM MONITORING
Before we go further into the Software MT-SOFT, we must look at the concepts of relative and absolute
measurements in more detail.

From the viewpoint of applications, we must distinguish three basic areas:

• RELATIVE MEASUREMENTS
Relative measurements are then used when the horizontal position
of the measured object is not relevant. When measuring the flatness
of a measuring and setting plate made of granite, it is not the posi-
tion of the plate that is decisive, but the form and structure of the
surface. The decisive factor is the difference in the inclination from
one measurement to the next.

• ABSOLUTE MEASUREMENT
Absolute measurements are used when the horizontal position of
the measured object is relevant. For example, for the installation and
commissioning of a machine tool, it can be very important that this
is entirely horizontal. The decisive factor is the location of the object,
or measurement points, in space.

• LONG-TERM MONITORING
For long-term monitoring, an absolute measurement is a MUST.
When monitoring a building, we want to know the absolute position,
i.e. the deviation from the absolute zero.

6.4.11.1 RELATIVE MEASUREMENT
When measuring the flatness of an object, e.g. a measuring and setting plate, it must be horizontally alig-
ned in both axes to measure. The decisive factor is the difference in the inclination from one measurement
to the next. In other words, in this application, the object is not measured absolutely. The measurements
can be performed with the LEVELSOFT PRO software and then analyzed according to the different align-
ment methods such as
I. Endpoints
II. ISO 1101
III. Linear regression
The handheld BlueSYSTEM units are particularly well-suited to this kind of application. The data transmis-
sion is wireless. The BlueMETER can be connected to a PC or laptop.

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