Applications for Magnetic Sensors
Release time:
2023-03-28 11:20
1
Automotive industry
Magnetic sensors in the automotive applications are mainly speed, inclination, angle, distance, proximity, position and other parameters detection, as well as navigation, positioning and other applications. In the energy saving and consumption reduction, especially at present to reduce a little carbon emissions or other pollutants, the motor will become a top priority, the motor will be from the existence of friction & ldquo; a moment & rdquo; pulley system to the transformation of electronic motors, the latter can be on-demand control. And, electronic motors will shift to more efficient and reliable brushed DC motors, and the role of magnetic sensors is reflected in making motor control or commutation more precise.
2
Industrial Applications
In other industrial applications, magnetic sensors are used in uninterruptible power supplies for machines such as computer servers and welding systems. In applications with high currents, such as large inverter motors, open- and closed-loop Hall sensors can be used with a Hall-effect IC in a small package, or a dedicated integrated circuit can be included in the package to increase integration. Hall ICs are also suitable for industrial inverter control applications. In addition to current sensors, standalone Hall effect ICs or magnetoresistive sensor switches also exist for motor rectification to reduce ripple and improve performance, or for applications such as position measurement.
3
Medical applications
Magnetic sensors are used in the medical field, albeit on a smaller scale than in industry, to assist in patient care and monitoring in many settings: ambulances, hospitals, and home care. Whether during surgery, in intensive care units, or in general home care, they can provide an effective way to control motion, airflow, detect blood pressure, and more to save lives or improve quality of life. However, magnetic sensors are still primarily used for motor control in medical devices with commutation sensors, such as ventilators, infusion, insulin and kidney dialysis machines.
4
Consumer Electronics
Magnetic sensors are also widely used in consumer electronics. For example, mobile phones, laptops, electronic compasses, etc. MEMS sensors and magnetic sensors in the electronic compass to promote each other, can make the navigation products more accurate, and this will be a bright spot in the navigation market. If the gyroscope, acceleration and magnetic sensors three sensors integrated together, the three in the function of each other to assist each other, it constitutes a more powerful inertial navigation products.
5
Aerospace Military
High sensitivity and low magnetic field sensors are very important materials for aviation, space and satellite communications technology. With the development of wave-absorbing technology in the military industry, military objects can be hidden by covering a layer of wave-absorbing material, but in any case, these objects will generate magnetic fields, so through the GMR magnetic field sensors can be used to find out these hidden objects.GMR magnetic field sensors can also be used in satellites, used to detect the objects on the surface of the earth and the distribution of mineral deposits underneath. And electronic compasses are mainly used in weapons/missile navigation, seafaring and aviation in high-performance navigation equipment credit.
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