The KGM grid encoders dynamically tests the contouring accuracy of CNC-controlled machine tools. It can perform, for example, circular interpolation tests with radii ranging from 115 mm down to 1 µm at feed rates up to 80 m/min. The KGM can also perform free-form tests in two axes. The advantages of the KGM include its contact-free measurement, which eliminates the influence of ball bearings such as with the DBB. Also, the error resulting from the machine's geometry has no influence on the results of circular interpolation tests with very small radii.

Measurement - Equipment & Instruments
  • grid encoder
  • cnc
  • contouring accuracy

Product features

Measuring standard Two-coordinate TITANID phase grating
Coefficient of linear expansion αtherm ≈ 8 x 10-6 K-1
Accuracy grade ± 2 µm / ± 1 µm
Traversing speed ≤ 80 m/min / ≤ 72 m/min
Voltage supply 5 V ± 0.25 V/< 100 mA (per axis)

Additional product literature


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