Open lineaire encoders

Open lineaire encoders zijn ontwikkeld voor toepassingen in machines en installaties waar een hoge nauwkeurigheid verlangd wordt van de meetwaarde. Typische toepassingen zijn:

  • Meet- en productiemachines voor de semiconductor industrie
  • Printplaat assembleermachines
  • Ultra-precisie machines
  • Nauwkeurige gereedschapsmachines
  • Meetmachines, comparatoren en meetmicroscopen
  • Directe aandrijvingen

Absolute lineaire encoders

LICThe LIC exposed linear encoders permit absolute position measurement both over large paths of traverse up to 28 m and at high traversing speed. In their dimensions and mounting, they match the LIDA 400.

Lineaire encoders met een uitgave van de positiewaarde

LIP 200The LIP 211 and LIP 291 incremental linear encoders output the position information as a position value. The sinusoidal scanning signals are highly interpolated in the scanning head and converted to a position value by the integrated counter function. As with all incremental encoders, the absolute reference is established with the aid of reference marks.

Incrementele lineaire encoders


For very high accuracy

The LIP exposed linear encoders are characterized by very small measuring steps together with very high accuracy and repeatability. They operate according to the interferential scanning principle and feature a DIADUR phase grating as the measuring standard.


For high accuracy

The LIF exposed linear encoders have a measuring standard manufactured in the SUPRADUR process on a glass substrate and operate on the interferential scanning principle. They feature high accuracy and repeatability, are especially easy to mount, and have limit switches and homing tracks. The special version LIF 481 V can be used in high vacuum up to 10–7 bar (see separate Product Information sheet).


For high traversing speeds and large measuring lengths

The LIDA exposed linear encoders are specially designed for high traversing speeds up to 10 m/s, and are particularly easy to mount with various mounting possibilities. Steel scale tapes, glass or glass ceramic are used as carriers for METALLUR graduations, depending on the respective encoder. They also feature a limit switch.


For two-coordinate measurement

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.


For application in high and ultrahigh vacuum technology

Our standard encoders are suitable for use in a low or medium vacuum. Encoders used for applications in a high or ultrahigh vacuum need to fulfill special requirements. Design and materials used have to be specially adapted for it. For more information, refer to the Technical Information document Linear Encoders for Vacuum Technology.
The following exposed linear encoders are specially adapted for use in high and ultrahigh vacuum environments.
• High vacuum: LIP 481 V and LIF 481 V

• High vacuum: LIC 4113 V and LIC 4193 V

• Ultrahigh vacuum: LIP 481 U

Nieuwe signaalverwerking ASIC voor open lineaire encoders

Open lengtemeetsystemen van HEIDENHAIN worden overal gebruikt waar behoefte is aan een positionering met een extreem hoge nauwkeurigheid of aan een nauwkeurig gedefinieerde beweging. Om ervoor te zorgen dat aan deze hoge nauwkeurigheidseisen gedurende de gehele levenscyclus van het meetsysteem kan worden voldaan, heeft HEIDENHAIN een nieuwe signaalverwerking ASIC ontwikkeld: de HSP 1.0. Deze video laat zien hoe deze ASIC de fluctuaties in de signaalkwaliteit bijna volledig compenseert en de oorspronkelijke signaalkwaliteit herstelt.