Suzhou Littelfuse Ovs Co., Ltd.

Hamlin Electronics (Suzhou) Ltd.

Jiao Yu

Ioannis Anastasiadis

Ming Li

Loannis Anastasiadis

A speed sensor assembly () includes a printed circuit board (PCB) () having a first main side and a second main side, a magnet () directly coupled to the first main side of the PCB (), a sensor () electrically connected to the PCB (), and a pole piece () directly coupled to the magnet () and to the sensor (), wherein the magnet () includes a slot partially enclosed by the pole piece (). The speed sensor assembly () including a slotted magnet () to reduce magnetic field amplitude for single sensing element hall effect sensor applications. The speed sensor assemblies () operate with both minimum and maximum air gaps.

Speed sensor assembly

Sensor arrangements are disclosed. A magnetic sensor is mounted to a printed circuit board. A pole element is arranged next to the magnetic sensor. The pole element acts as a magnetic field concentrator for the magnetic sensor. A movable magnet may be positioned in proximity to the magnetic sensor and the pole element. The movable magnet may be held in a magnet holding element. The magnet holding element may be attached to a rotatable element, such as a shaft.

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Suzhou, China

Jiao Yu