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Heidenhain - Exposed Linear Encoder - PP

Exposed linear encoders are designed for use on machines and installations that require high accuracy of the measured value.

Typical applications include:
  • Measuring and production equipment in the semiconductor industry
  • PCB assembly machines
  • Ultra-precision machines
  • High-accuracy machine tools
  • Measuring machines and comparators, measuring microscopes, and other precision measuring devices
  • Direct drives

PP - For two-coordinate measurement
Incremental Encoders
On the PP two-coordinate encoder, a planar phase-grating structure manufactured with the DIADUR process serves as the measuring standard, which is scanned interferentially. This makes it possible to measure positions in a plane.


Model Accuracy grade Substrate and mounting Interpolation error Measuring length 
PP 281
 ± 2 μm
Glass grid plate, 
with full-surface bonding
 ± 12 nm Measuring range 68x68mm

 Exposed Linear Encoders - PP

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Exposed Linear Encoders - PP