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New Compact, High-Accuracy Angle Encoder from HEIDENHAIN

By Miles Budimir | May 3, 2012

Schaumburg, Ill. – HEIDENHAIN’s newest angle encoder, the ERO 6000, features a flat design, no integral bearing and a small scanning head. It’s ideal 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 20 µm, 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 available. The encoders are available with 1VPP 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.

www.heidenhain.us

 

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About The Author

Miles Budimir

Miles has been with Design World since 2009 covering motion control, automation, and test and measurement. He holds a BSEE degree and an MA in Philosophy from Cleveland State University and has experience working in the controls industry as a project engineer. Miles has taught engineering technology courses as well as engineering ethics continuing education courses for professional engineers in the state of Ohio. He is also a drummer, and enjoys travel and photography.

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