Strong demand in the application field drives the rapid development of magnetic sensors

Magnetic sensors are mainly manufactured by using the principles of magnetoelectricity, magnetoresistance, magneto-optical, and thermomagnetic effects of some materials. In addition to Hall devices, semiconductor magnetoresistive resistors, magneto-sensitive diodes, and so on, there are fluxgates, proton precession magnetometers, superconducting quantum interferometers, and many others.

Magnetic sensors are an important part of sensor products and have been widely used in aerospace, automotive, industrial, consumer and many other fields. According to Shi Yunbo, the automotive sector occupies more than 70% of the magnetic sensor application market. It is mainly used in automotive applications such as speed, inclination, angle, distance, proximity, position and other parameters detection and navigation, positioning, etc., such as vehicle speed measurement, pedal position, gearbox position, motor rotation, assist torque measurement, crankshaft Position, inclination measurement, electronic navigation, anti-lock detection, parking positioning, etc.

According to iSuppli's prediction, the magnetic sensor chip market will experience strong demand from automotive, industrial and consumer applications in 2010. This market revenue is estimated to increase from 821 million U.S. dollars in 2009 to 1.4 billion U.S. dollars in 2013. From shipments, the figure will increase from 2.8 billion in 2009 to more than 5 billion in 2013.