At the open, non-guided systems a double sided adhesive foil is applied on the measuring scale for direct sticking on the machine bed.
In all of these versions, the scanning still takes place without contact and is therefore not subject to wear. Depending on the application a grating pitch of 500 µm, 1000 µm or 3000 µm can be used. To determine the absolute position along the axis the scale has integrated reference marks. These reference marks can be realized as a single, multiple or distance-coded pattern.
|LMB-1050 / 1150||LMB-100 / 110||LMB-130|
|Grating pitch:||500 µm||1000 µm||3000 µm|
|Accuracy after linear compensation:||Down to ± 3 µm/m||Down to ± 5 µm/m|
|Coefficient of expansion:||~ 11 ppm/K|
|Measuring length:||Any lengths up to 30m|
|Mechanical execution:||Stainless steel measuring tape with adhesive layer for mounting|
|Reference marks:||1 reference mark as standard or any desired number and position or distance coded
(see page 48 here)