The latest in Magnet and Magnetic Technology including a new design of Neodymium Rare Earth Magnet will be on display on the Bunting Magnetics Europe stand (Hall 1, K19) at Sensors & Instrumentation 2017 (NEC, Birmingham, UK, 26th – 27th September 2017).
Bunting Magnetics is a world leader in the supply of Magnets, Technical Magnetic Assemblies, and Magnetisers. The European manufacturing and design headquarters are based in Berkhamsted in Hertfordshire.
At the Sensors & Instrumentation show, Bunting is launching a range of sintered and Bonded Neodymium Magnets with direction of magnetism controlled to +/- 0.5 degrees. This range of Magnets has been developed to provide integrators of Magnetostrictive position sensing offer more accurate and more compact systems. When a typically linear position sensing has an accuracy proportionally to the angular error in an axially aligned ring magnet, magnets with a tighter specification significantly improve the performance.
Magnetic position sensing using Hall Effect devices or Anisotropic Magneto Restrictive sensors is a well-established method of contactless positional location of rotational or linearly moving components. Multiple sensors offer very accurate resolution and are used extensively in many electronic and mechanical control systems. Nearly all position and rotational sensors include a bespoke magnetising fixture, specifically designed to maximise the properties of the magnet.
The Bunting design and engineering team work closely with companies manufacturing and using sensors to develop magnetic assemblies with a focus on weight reduction, minimising false triggers, and performance.
A sensing application may range from a simple proximity switch (e.g. reed switch on a door or window security alarm) to encoder technology for motor control in automotive or aerospace applications. The Bunting design team has worked on projects where sensors are required for detecting rotor positions, providing measurements (e.g. distances, speed or angle proximity), detecting fluid levels, and triggering switches. These include magnets used to measure the level of fuel, contactless position sensing magnets, and magnets to sense speed. A sensing application may range from a simple proximity switch (e.g. reed switch on a door or window security alarm) to encoder technology for motor control in automotive or aerospace applications. Understanding the technical requirements of a magnetically contactless solution ensures the best design of Magnetic Assembly.
Many of the bespoke magnetising fixtures designed and manufactured by the Bunting team utilise a Bunting range of compression or plastic bonded Neodymium called BREMAG and BREMAG10N. Plastic bonded magnets are often used due to their magnetic isotropy and advantage of being able to produce multipole (fine pole) magnetisation patterns for accurate position sensing.
Both the BREMAG and BREMAG10N Magnet materials are manufactured in the UK and offer the highest energy (10, 10.5 and a World Leading 11MGOe) of all types of bonded magnets. With the higher magnetic energy, this type of Neodymium Magnet is ideal for use in brushless DC motors, actuators and sensors.
For further information on the Magnets and Magnetic Assemblies that will be on show at the Sensors & Instrumentation 2017 exhibition, please contact us on press@buntingeurope.com
