7 Pulsed Sine Wave Encoder Magnets, O.D14mm/0.55in, Radial, 14poles

The magnetic ring sensor in the motor hall is a magnetic induction sensor. It operates through an induction mechanism involving the magnetic ring and the Hall element. As the rotor turns, the magnetic ring rotates along with it, and the Hall element also rotates, detecting the changes in magnetic flux. Typically, the magnetic ring utilizes several sets of poles, such as two, three, or four pairs. Each pair consists of an N and S pole. Hall element activation can be triggered in three ways: omnipolar, bipolar, or unipolar. Mostly, water heater flow sensors employ the unipolar latching method. This method involves the generation of a pulse when the N and S poles pass sequentially across the Hall sensor's detection zone. In other words, each transition of a magnetic pole pair produces a pulse signal, with multiple pairs generating multiple signals accordingly. Enhancements such as using amorphous or nanocrystalline magnetic rings (ultra-microcrystalline iron cores), incorporating open-cut air gaps, and adding Hall chips within the assembly facilitate current monitoring and sampling. These sensors find application in the control systems of new energy-electric vehicles.

Examples of Magnetization

Single-track ring magnets

Double-track ring magnets

Sensor Magnets

Examples of Magnetization Waves

Square Wave

Sine Wave

Examples of Magnetization Waves

Enterprise technology center and research institute

UAV

Industrial robot