The measuring machine is intended primarily for the control of electro-optical distance
meters, in addition, can also be the direct and the optical distance measurement
to be checked, the principle consists in that the distance measurement of
the EDM will be compared to the distance measurement of a precise device.
In order to be able to measure different distances, is mounted on the measuring bench,
a guide which can move a trolley. Since in each case is measured the distance to the
trolley, different distances can be measured by placing the trolley at different positions.
The measuring machine consists of a masonry structure. Then is attached a guide
on which a truck can move. The reference measuring system is a laser interferometer.
At one end of the measuring machine is provided with a fixed point at which the
total station, with the electro-optical distance meter, can be placed, at
the other end, the interferometer. Both rangefinders require a reflector.
On the trolley is therefore an end-piece on which the two reflectors are attached.
To check if the level devices are correctly calibrated, the collimator can be used.
In the lab there is a table where the collimator is installed. Just before
the collimator, a fixed mounting point is fixed. The level device can be placed
on that mounting point to perform the check.
In the lab there are thirteen solid pilars. Along both sides of the measuring
machine are in each case six of those installation points between at variable
distance from each other. These sites are mainly used in the practice of
industrial measurements on an object on the measuring bench and for determining
the summation constant.