Magnetic sensor development trend

The rapid development of magnetic sensors in the past two years has captured the eye of the industry, and it is not difficult to find that the number of magnetic sensor manufacturers in the international and domestic markets is increasing rapidly. In fact, in the field of sensors, not only new types of MEMS sensors, but also the traditional magnetic sensor market is rapidly developing. According to iSuppli's prediction, the magnetic sensor chip market will experience strong demand from automotive, industrial and consumer applications in 2010. The estimated market revenue in 2009 will be 821 million US dollars, up to 2013 of 1.4 billion US dollars of scale; shipments to calculate, it is by 2.8 billion in 2009, up to more than 2013 of 5 billion.

Significant growth in the automotive market Magnetic sensors are mainly produced using the magnetoelectric, magnetoresistive, magneto-optical, and thermomagnetic effects of some materials. In addition to Hall devices, semiconductor magnetoresistive resistors, magneto-sensitive diodes, and so on, there are many types of fluxgates, proton precession magnetometers, superconducting quantum interferometers, and so on.

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 an automobile vehicle, inclination, angle, distance, proximity, application of the position detection parameters, and navigation, positioning, such as measured vehicle speed, pedal position, gear selector position, rotation of the motor, the assist torque measurement, the crankshaft Position, inclination measurement, electronic navigation, anti-lock detection, parking positioning, etc.