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Magnetic Rotary Encoders

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General information and areas of application

Time for a new generation – time for new standards

square wave signals [3] and can therefore be evaluated by any electronic counting system. Sealing of the electronic compo- nents also permits safe operation, even with fluid media. The magnetic absolute measurement requires an even more cunning use of the technology, as the possible shaft adjust- ment is also logged when the system is not supplied with power. Therefore on a magnetic angle encoder, an initial dimetral magnet installed upstream from the functional logic system described above generates a complete sinus signal per rotation. This already absolute single turn signal is also digitized and oset with the se- quence signal. This SIKO development with its inde-structible, magnetic scanning tech- nology is suitable for completely new mechanical engineering concepts. Both resolution and scanning reliability as well as the robustness of the compact measuring systems cover application ar- eas which by far exceed those of optical rotary encoders. magnetized pole length of the magnetic ring is converted by a customized evalu- ation electronic system into up to 2,560 pulses per rotation. These incremental counting pulses are available as

Benefits

â–  Very high shock, vibration and tem- perature resistanceFully resistant to oil, lubricants, dirt
â–  and waterWear and maintenance-free sensor
â– 

How it works

electronic sensors [2]. The systemOptional sealing of the electronics also With a magnetic ring [1] mounted on a hollow or solid shaft, the rotation of ma- chine shafts or spindles can be “transmit- ted” to special
â–  permits use in oil baths etc.Very compact designs

Rotary Encoder - 16025 .

â–  â–  Magnetic encoders are very versatile due to the wide range of versions for hollow shaft and solid shaft installa- tion

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[1][2] [3]

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The signal path: A sensor [2] tracks the north-south poles [1] of the spe-cially magnetized ferrite ring and generates pulses [3] which are processed in real time and made available as digital signals.

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Digital output signal Sensor with downstream real-time pro- cessing Magnetic ring with magnetized north and south poles 2 RotoLine | 2.1 Magnetic rotary encoders www.siko.de