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Future Sensor Technology
Feb 03, 2018

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Future sensor technology - magnetic sensors.

In your car, these small sensors could be as many as 70, of course, there are all kinds of capacitor and other components, they silently execution are endowed with various functions, allows you to move from point A to the destination smoothly B.


Huge amounts of application

Magnetic sensors are ubiquitous, compact and affordable, and can easily be integrated into chips with other circuits, so magnetic sensors are widely used in various applications.For more information on magnetic sensors, please read the white paper.


The advantage of magnetic sensing technology in robot and factory automation is particularly obvious.Because of the higher reliability and precision of the magnetic sensor in the parts location and speed detection, it is very important to the motion control.This advantage also allows the robot arm and other components to move smoothly and accurately, ensuring high quality and high safety manufacturing processes.


In addition to cars, magnetic sensors are also heavily used in household appliances such as washing machines and microwaves to detect whether the door of the machine is closed or open.Magnetic sensor is widely used in medical devices, for example, when used in hearing AIDS, it can detect whether the wearer to carry the mobile phone, then change to the corresponding model, in order to help the wearer can more clearly hear the call.In addition, it is often used for floor detection in elevators and to detect whether handheld devices such as tablets or mobile phones are open or closed.


The working principle of

Magnetic sensors work by converting magnetic fields into voltage or current information.Sensors due to the internal operation and external components don't need the actual contact, therefore, magnetic sensor in the automotive and industrial environment ideal reducing environment pollution, at the same time it can reduce wear due to friction between components, thus reducing maintenance costs of the equipment.


Magnetic sensor has a wide variety of functions, but specifically, there are two functions of the sensor can be widely integrated into other circuits, the hall effect sensors and flux-gate sensor.

The hall effect sensor can operate reliably in various electromagnetic environments, and is highly praised and loved by manufacturers.Common applications include oil gauges, which are used to detect the float in the tank, and it can also be used for brushless motors, detecting rotor positions and timing current.When the magnetic sensor is integrated with other circuits, the manufacturing process does not require special materials or special processing to help reduce the design cost.

The fluxgate sensor is more sensitive than the hall effect sensor and can detect very subtle changes in the magnetic field.The applications commonly used for fluxgate sensors include electronic compasses for ships and aircraft, and instruments used by geologists to detect underground structures.


The new development

Texas instruments (TI) can provide a range of solutions related to the integrated hall effect or fluxgate sensor.


"We are developing a variety of magnetic induction technologies and integrating them into semiconductor technology to develop interesting new devices," said system engineer Ross Eisenbeis.

For engineers hoping to use TI sensors in chip design, TI offers a rich array of features and support.A range of tools and software can help engineers create new designs, and engineers can communicate and discuss best practices on our BBS.The rich online training can help engineers make full use of the features and advantages of TI magnetic sensor.

"We are developing a range of new technologies that will help design engineers to achieve performance and cost goals more easily," says Ross.At the same time, we can also provide them with a large number of easy-to-use technical documents.Our technical experts and IC designers have continued to promote these technologies.


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