Measuring distanes without a reflector

 Each of the TCR total stations from Leica Geosystems includes not only a conventional infra- red distancer that measu- res to prisms, but also an integrated laser distancer

that requires no reflector. You can switch between these two distancers. This arrangement brings many advantages where points are accessible only with difficulty or not at all, for example during the recording of frontages, in positioning pipes and for measurements across gorges or fences. 

The visible red laser dot is also suitable for marking targets in connection with the recording of tunnel profiles or tunnel profiles or with indoor work.

Automatic target recognition 

The "DISTO" hand- held laser meter from Leica Geosystems is another simple instrument that uses a visible laser beam and needs no reflector; it is particularly suitable for indoor measurements to ascertain spacings, areas and volumes. 

The TCA total stations from Leica Geosystems are equipped with an automatic target- recognition system ( "ATR"). This makes tar- geting faster and easier.it is enough to point the tele- scope approximately at the reflector; a touch on a button then automatically triggers the fine pointing and the angle- and distance measurements, and records all of the values. This technology also makes it possible to carry out fully- automatic measurements with the help of a computer. 

The ATR can also be switched to a mode in which moving targets can be followed and measured;

 after establishing the instrument locks on to it and tracks on to it and tracks it. The practical applications of this option include the precise guidance of construction machinery.

Advantages of ATR: High speed of measurement combined with a contract measuring accuracy that is independent of the observer.