As electronic systems become increasingly compact and intelligent, on-board magnetic sensors have emerged as indispensable components for measuring position, speed, direction, and current. These tiny yet powerful devices are now integrated into everything from electric vehicles to industrial automation systems and consumer electronics.

What Are On-Board Magnetic Sensors?
On-board magnetic sensors detect and measure magnetic fields generated either naturally or by electrical currents and magnets. When integrated into electronic circuits or printed circuit boards (PCBs), these sensors provide real-time data on movement, rotation, and orientation without direct physical contact.

They're typically based on Hall effect, magnetoresistive (AMR, GMR, TMR), or fluxgate technologies, depending on the application requirements for sensitivity, linearity, and robustness.

Key Applications
1. Automotive Systems
Wheel speed and ABS sensors

Steering angle and pedal position monitoring

Battery management and motor control in EVs

2. Industrial Automation
Motor feedback for robotic arms and CNC machinery

Conveyor belt speed sensing

Non-contact position tracking in harsh environments