Magnetic kit encoders with diametrical magnet for precise end-of-shaft position detection

Produkte Branchen

Robust, high-resolution angle sensor technology with easy integration and reliable performance even at high speeds.

Kübler is expanding its sensor technology portfolio with a new magnetic kit encoder based on a diametrical magnet, which can be integrated directly onto the motor shaft or into the housing thanks to its compact design. The lateral arrangement of the north and south poles ensures stable and reliable position detection – even at high speeds and in environments with external influences. An additional shielding plate protects the system from EMC interference, such as from motor brakes.

The encoders are available in two absolute versions:

• Singleturn: provides a unique position for each angular position, which is retained even after a loss of voltage.
• Multiturn: enables detection over several revolutions. The integrated energy harvesting technology stores the number of revolutions without an external power supply.

With high accuracy, flexible interfaces, and robust magnetic field sensors, the new kit encoder is suitable for a wide range of applications in drive and automation technology.

How it works

When the diametrical magnet rotates, the magnetic field changes in the plane of the direction of rotation. Magnetic field sensors detect these changes as X and Y components and convert them into sine and cosine signals.

The exact angle of rotation is then calculated from the signal processing – with a resolution of several thousand steps per revolution.

In multiturn systems, an integrated energy harvesting chip counts the revolutions and stores them even if the power supply is briefly interrupted.