Energy Harvesting Using The Wiegand Effect - Battery-Less Sensors For The IoT
Santa Clara Convention Center, CA, USA
Grand Ballroom D
09:20 - 09:40
The Wiegand effect was widely used in rotation sensors and key cards. Over the last years Hall-sensors and RFID have taken over these applications and the macroscopic extension of the Barkhausen effect was about to be forgotten.
The revival of the Wiegand wire comes with low power electronics. The energy of a single pulse can power counters and detect position changes. The technology is now widely accepted replacing batteries or gears in rotary multi-turn encoders and metering devices.
Current R&D projects aim on optimizing the Wiegand wire and sensors to harvest energy for a variety of battery-less sensors and wireless transmission which will be key for the Internet-of-things.
Christian Fell received his M.S. in Physics from University of Duisburg, Germany in 1996 and a diploma in Medical Physics from University of Kaiserslautern, Germany in 1997. He has over 15 years of experience in the
field of magnetic and optical sensors and has worked in R&D, sales & marketing and executive management positions. Today he is responsible for FRABA's OEM business development in the Americas as well as for their global product strategy for POSITAL sensors.
POSITAL-FRABA Inc., based in Hamilton New Jersey, is the North American member of the international FRABA Group, a family of enterprises focused on providing advanced products for position sensing and motion control. Key products include rotary encoders, inclinometers (tilt sensors) and linear position sensors. POSITAL sensors incorporate advanced sensing and signal processing techniques that deliver accurate measuring performance, durability, versatility and cost efficiency. The energy harvesting technology built into their multi-turn magnetic encoders supports a self-powered rotation counter that ensures that these devices can reliably report absolute position measurements without any need for backup batteries.