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2 min read

Multiturn encoders - How battery-free revolution counting is changing the industry

Roger Zingg Mar 26, 2025 10:00:00 AM
Multiturn encoders - How battery-free revolution counting is changing the industry
3:52

Precise angle and rotation measurements are essential in modern industry. Whether in medical devices, mobile machines or renewable energy systems - in many applications, not only the angle of rotation but also the number of revolutions must be reliably recorded. This is precisely where multiturn technology comes in.

The new Vert-X 46MT from Contelec is a high-precision multiturn encoder that works without a battery or gearbox and stores absolute position data over several revolutions. But what makes multiturn encoders so special - and why should a battery-free solution be preferred?

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What is a multiturn encoder?

A multiturn encoder not only records the current angle of a rotary movement, but also counts the number of complete revolutions - even over longer periods of time and regardless of whether the system has been switched off in the meantime.

How does this work?

  • Classic encoders only measure a single rotation (0-360°)
  • Multiturn encoders also count how many times this full rotation has taken place
  • This information is crucial for applications in which large travel distances or multiple rotational movements need to be recorded

What is the difference between battery-free multiturn encoders?

Traditionally, multiturn encoders store rotation information using batteries or mechanical gears. The Vert-X 46MT requires neither.

  • No battery in the sensor / no risk of disposal / no risk of failure
    ➡️ Maintenance-free, more reliable and more sustainable
  • No mechanical gearbox
    ➡️ Wear-free and durable, even at high speeds
  • Independent revolution counting
    ➡️ Stores revolutions even when the sensor is switched off - without an external energy source

Why battery-free multiturn encoders are revolutionizing the industry

Mobile machines & vehicle technology

  • Steering & drive systems: Monitoring steering movements in off-highway vehicles
  • Lifting systems: Detecting the lifting height in forklift trucks or construction machinery
  • Swivel mechanisms: Control of crane booms and work platforms

Medical technology

  • Positioning of operating tables & patient couches: Accurate measurement of height and rotation adjustments
  • Precision movements in diagnostic devices: Ensuring exact processes in imaging procedures

Renewable energies

  • Rotor blade adjustment in wind turbines: Precise adjustment to wind conditions
  • Tracking systems for solar panels: Maximizing energy yield through optimal alignment

Vert-X 46MT - The smart solution from Contelec

With the Vert-X 46MT, Contelec offers a powerful solution for industrial and mobile applications.

Why Vert-X 46MT?

  • Battery-free, autonomous revolution counting up to 16 bit - maximum precision without maintenance effort
  • Absolute position measurement - saves data even in the event of a power failure
  • Durability thanks to contactless technology - no mechanical wear parts
  • Compact design - ideal for applications with limited space
  • Proven technology in medical technology & industry - tried and tested in demanding environments

Conclusion: More precision, less maintenance - the future of multiturn sensors

Multiturn encoders are indispensable in numerous industries when it comes to reliably detecting not only angles but also rotational movements. The battery-free multiturn technology of the Vert-X 46MT ensures maximum precision and freedom from maintenance - even under extreme conditions.

💡 Interested in a reliable multiturn solution?
📩 Contact us for an individual consultation!
Roger Zingg
Roger Zingg has been Managing Director of Contelec AG, a company based in Biel, Switzerland, which specializes in the development and production of angle sensors, since 1989. Under his leadership, Contelec has established itself as a leading provider of sensor solutions used in various industries such as agricultural engineering, medical technology and the energy sector. With over 35 years of experience in the sensor industry and a strong commitment to sporting activities, Roger Zingg embodies a balance between professional success and personal passion. Translated with DeepL.com (free version)

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