Magnetic induction sensor is a device that can convert changes in the magnetic properties of sensitive components caused by external factors such as magnetic field, current, stress-strain, temperature, and light into electrical signals. It is widely used in modern industry and electronic products to measure physical parameters such as current, position, and direction by inducing magnetic field strength. Magnetic induction sensors can be classified into compass, magnetic field sensor, position sensor, and other types based on their working principle and purpose. These sensors utilize the characteristics of magnetic materials to detect changes in magnetic fields and output corresponding electrical signals, thereby achieving measurement and monitoring of external physical quantities. ‌

The working principle of magnetic induction sensors is based on the characteristics of magnetic materials. When external factors such as magnetic fields, currents, etc. act on sensitive components, they will cause changes in magnetic properties, which are converted into electrical signals for output. This conversion process enables magnetic induction sensors to detect and measure various physical quantities, such as magnetic field strength, direction, etc. Due to the high sensitivity of magnetic materials, magnetic induction sensors can provide more accurate measurement results.