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Can Hall Effect Sensor Be Used for Magnetic Field Measurement?

Dec. 04, 2020

As a China Hall IC Supplier, share with you.

Hall-effect switches and instrument-level sensors are becoming more and more popular in industrial applications. Today, product and manufacturing process designers can choose a variety of highly integrated Hall-effect devices. Although there is still a lot of confusion as to what specifications are needed and magnetic field measurements in general, these devices have proven to be quite easy to use.

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In terms of the number of uses, only temperature sensors are slightly better, but Hall effect sensors have also been used in a wide range of domestic and commercial applications, including DVDs, CDs, memory drives, automatic toys, mobile phones, car compasses, and car ignition systems . In addition, they can also be seen in linear, industrial rotating equipment, position detectors, and military/aerospace equipment.

Manufacturing and test engineers use various types of discrete Hall-effect sensors and instruments to provide product information and monitor manufacturing process steps. Although the measurement function may overlap with other types of sensors and instruments, Hall effect sensors are obviously the best choice for certain types of measurements, and in some cases, no other types of test equipment can provide the required The data includes the measurement of DC current value, rotation position, gap, surface or leakage magnetic field value.

In an industrial environment, Hall-effect devices generally serve the following two main applications:

Measuring magnetic field strength

Detect the proximity, position and rotation parameters of moving objects

Instrument-grade sensors for magnetic field measurement

When an industrial application requires accurate or certified magnetic field measurements, instrument-grade Hall-effect devices are often used. Some of the more common instrument-level applications include electromagnetic field control, semiconductor ion implantation beam control, access inspection of magnets or magnetic parts, online magnetization confirmation, magnetic field mapping, current detection, and continuous magnetic field exposure monitoring. As an alternative to these many measurements, a commercial Gauss meter can be used. However, in practical applications, physical or cost constraints often require the use of discrete Hall sensors and commercial electronic devices.

Users of instrument-grade Hall devices usually want to get an accurate value of the magnetic field in a space or gap or from the surface. According to the spatial characteristics of the measurement, a suitable installation method needs to be used to install and maintain the detection element.

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