How Are Magnets Used in the World of Sensors? Magnetic Sensors 101
As the term “sensor” would imply, magnetic sensors detect various changes and disturbances within its magnetic field. Common metrics detected and monitored include direction, flux and strength. It’s important to note that magnetic sensors differ from other detection sensors which may measure things like light, pressure, temperature and so forth.
Magnetic sensors can be divided into two primary groups. One group of magnetic sensors measures the complete magnetic field present, while the other measures specific vector components of a magnetic field.
Magnets offer an outstanding temperature stability, high residual induction and high energy output. They make for an excellent candidate in the world of sensor technology & can be manufactured in a variety of complex shapes and sizes.
(The Many) Practical Applications of Magnetic Sensors
As stated above, magnetic sensors are used every day, around the world, in a wide variety of applications from general use to specialized operations. Below are several common applications.
Consumer products: present in printers, scanners, flat panels, cameras, various household appliances, audio devices and more
Green energy production: magnetic sensors help allow for optimal power generation and serve as a critical part of contactless current
Robotics and factory automation: linear and angular position sensing is used frequently to ensure precise and smooth operations
Security and military: detection of ferromagnetic and other conducting objects; position tracking and navigation; facilitation of anti-theft systems
If you are like most of the world, you probably have an advanced smartphone within reach. Most current mobile operating systems feature a built-in compass or navigation app. As you may have guessed, indeed, this incredible feature is made possible by complex and powerful magnetic field sensor technology.