ERO 6000 Angle Encoder

May 12, 2012

Distinguishing itself by its flat design, no integral bearing and very small scanning head, HEIDENHAIN's newest angle encoder is now being introduced to the marketplace. Called the ERO 6000, this new angle encoder is perfect for use in many metrology systems, in compact rotary tables and high dynamic applications such as air bearing spindles, laser trackers and robot arms.

The compact scanning head of the ERO 6000 is made possible primarily by the application of a divergent scanning principle that does not require lenses or other beam-directing optics. The scale graduation is an extremely sturdy and high-quality METALLUR graduation and is adhered very accurately to a steel hub. This scanning method is new in HEIDENHAIN angle encoders. The component's resulting grating period is 20µm, regardless of diameter.

Small scanning heads usually require small scanning fields, which are more sensitive to contamination due to the scanning principle. To counteract this characteristic, a signal error compensation function is integrated in the encoder's scanning sensor, which compensates the amplitude size and amplitude ratio within certain limits and thus increases the reliability and safety margin of the device.

Two ERO 6000 design types with line counts of 9,000 and 18,000, respectively, are being introduced currently. The encoders are available with 1 VPP and TTL interfaces. When it comes to mounting, the disk/hub assembly can be centered mechanically via 3-point centering or electrically with a second scanning head.

Related Glossary Terms

  • centering


    1. Process of locating the center of a workpiece to be mounted on centers. 2. Process of mounting the workpiece concentric to the machine spindle. See centers.

  • flat ( screw flat)

    flat ( screw flat)

    Flat surface machined into the shank of a cutting tool for enhanced holding of the tool.

  • metrology


    Science of measurement; the principles on which precision machining, quality control and inspection are based. See precision machining, measurement.