Encoder tolerates heat, vibration, and shock

The Extreme 1000 series provides encoders for severe environments. The measurement and function range on this Leine & Linde encoder (Available in the U.S. from Heidenhain Corp.,

meets requirements of industries such as wind, steel, crane, and mining machinery. In these applications, the encoder is exposed to extreme mechanical stress, vibrations, shock, and high temperatures.

Sturdy bearings and a rugged enclosure make the encoder useful in all applications with similar demands. The enclosure, rated IP67, protects the encoder’s internal components from dust and liquids. A stainless-steel housing is available as a option.

Different incremental and absolute versions of the 1000 series are available, and of the various encoders can be combined in the same 1000 series product. What’s more, absolute pulse encoders with the Profibus interface can be used in extremely tough industrial environments by using this device. The absolute variants come with interfaces such as SSI, EnDat, CANopen, DeviceNet, or with a parallel output with resolutions up to 25 bit. For more info, reach Tom Wyatt at (847) 884-3713 or twyatt@heidenhain.com.

Encoders Give Turbine Controls More Data

To improve the efficiency of large turbines, many operators have turned to a rather small, 58-mm dia. absolute encoder from Denmark’s Leine&Linde. The Model 500 series of Incremental and absolute encoders provide speed and positioning  feedback to controls in nacelles. Siemens wind turbines, for example, use a pulse encoder on each rotor blade and one to track where the turbine is pointing. The main control system uses position information to optimize generator speed.
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