REDWIRE The Wiegand system of energy harvesting converts energy for POSITAL

July 16, 2020 REDWIRE is news you can use from leading suppliers. Powered by FRASERS.

Posted by FRABA Inc


POSITAL-Fraba is a major innovator in the field of motion control. The manufacturer always uses the latest technology in... Read more

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energy harvesting

In-house wire processing machinery

POSITAL-Fraba is a major innovator in the field of motion control. The manufacturer always uses the latest technology in its encoders, sensors, inclinometers, and more. A hot topic in industry these days is energy harvesting: when networked components can harvest the electricity that they need directly from their surroundings, they create potential for maintenance-free, energy-self-sufficient networks, with no batteries required. The Wiegand effect that POSITAL uses is an energy-harvesting system with a stellar track record.

A wire that creates electricity

Although kinetics, thermocouples, and piezo are more well known and common as energy-harvesting technologies, POSITAL has actively supported the Wiegand system. At the heart of this method of energy harvesting is a very special, tiny wire, invented by John Wiegand, that has an almost magical effect: it converts mechanical energy into pulses of electricity.

The first Wiegand sensor was designed in 2004, and POSITAL has been using this method of energy harvesting in its multi-turn encoders since 2006. This system enables reliable measurement of multi-turn absolute positions with no need for an external power supply. It generates short voltage pulses that are sufficient to power rotation-counting electronic circuits, even at very low rotation speeds.

To work with this technology, POSITAL supplies fingertip-sized “mini power plants” that can energize electronic counters and other low-power devices. Packaged as SMD components, small Wiegand sensors are used in the company’s own line of multi-turn encoders. POSITAL sells these encoders to gas- and water-meter producers and other third-party manufacturers.

Wiegand sensors by POSITAL are used as pulse generators in many industrial applications. These devices have no moving parts. When a magnetic field changes the magnetic state of the Wiegand wire within the sensor, it produces a output pulse that can be employed as a power source in an energy-self-sufficient revolution counter.

POSITAL’s Wiegand sensor products reflect the knowledge acquired by a full decade of experience in using Wiegand-effect base revolution counters. The company uses SMD mounting technology to assemble these high-performance sensors, which can be used for revolution counters in absolute rotary encoders, meters, and other relevant applications.

For more information, contact POSITAL.


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Posted by FRABA Inc


POSITAL-Fraba is a major innovator in the field of motion control. The manufacturer always uses the latest technology in... Read more

Contact supplier