At this year’s Hannover Messe exhibition, FSG will present its new series of high-resolution heavy duty encoders. The devices register the rotation angle and speed with 12 bit accuracy over 360° and can cover up to 4096 revolutions in multiturn mode.
The contact-free measuring system is based on integrated Hall sensors technology that registers changes in the field of the permanent magnets and transforms these into digital signals. Position values can thus be provided directly after activation requiring no reference runs. Thanks to robust, seawater-proof aluminium housing, the encoders are designed to withstand rugged environments.
Suited for a -40 to 85°C temperature range, IP68 protection is provided on the housing side and IP67 on the shaft side. A typical application is position detection on ships or in offshore and outdoor applications. The encoders provide angle and speed data via either a Profibus or CANopen interface. DIP switches in the terminal compartment at the back of the encoder allow users to assign addresses and activate additional bus terminators. The electrical connection is established via three stainless steel cable glands.
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The Fraunhofer Institute for Integrated Circuits, working in concert with the Fraunhofer Institute for Wind Energy Systems, has developed a solution that can be used to identify cracks and breakage inside wind turbine blades remotely at an early stage.
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