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Mighty Micro Magents 101: Their Applications In Sensors

Micro magnets, as the name suggests, are miniature magnets that measure just a few micrometers in size. Despite their tiny size, they possess remarkable magnetic properties that make them invaluable in the realm of sensors. These micro-sized magnets are made from materials like neodymium, ferrite, or samarium-cobalt. One of the most important applications of micro magnets is in the field of sensors. They are used to detect and measure physical properties such as magnetic fields, temperature, pressure, and acceleration. In this article, we will talk about the applications of micro magnets in sensors.

micro magnets in sensors

One of the key advantages of micro magnets is their small size. Because they are so small, they can be used in sensors that are themselves small and compact. This makes micro magnets ideal for use in portable devices such as smartphones and wearables. Additionally, they are highly sensitive, which allows them to detect even the smallest changes in physical properties.


magnetic sensor

Micro Magnets In Speed Sensors

Speed sensors that use micro magnets are used to measure the speed of a vehicle’s wheels and are critical for anti-lock brake systems (ABS) and electronic stability control (ESC). By accurately measuring the speed of each wheel, these systems can ensure that the wheels don’t lock up during hard braking or lose traction during cornering, helping to prevent accidents.

Micro magnets are also used in speed sensors for industrial applications. They can be used to measure the speed of conveyor belts and turbines. By accurately measuring the speed of these machines, engineers can detect problems early and take corrective action before they become more serious.

Temperature Sensors

In temperature sensors, micro magnets are used to measure changes in temperature. The principle behind this is that the magnetic properties of a material change with temperature. By measuring the data of the magnetic properties, engineers could know the temperature of the material. Temperature sensors have been widely used in a variety of applications, from monitoring the temperature of engines to monitoring the temperature of food products during shipping.

Pressure Sensors

In pressure sensors, micro magnets are used to measure changes in pressure. The principle behind this is that the magnetic properties of a material change with pressure. After feeling the changes in magnetic properties, the sensor could measure the pressure of the material it is in contact with. This is useful in applications such as monitoring tire pressure in automobiles, as well as in industrial applications such as monitoring fluid pressure in pipelines.

Magnetic Sensors

In the field of magnetic sensors, micro magnets are used to detect magnetic fields. For example, they can be used to measure the strength and direction of a magnetic field. This is particularly useful in applications such as compasses, which use micro magnets to determine the direction of magnetic north. Micro magnets can also be used in magnetic field sensors for industrial applications, such as detecting the presence of magnetic materials in a product.

Biomedical Sensors

In medical devices like MRI machines and blood flow monitors, micro magnets are utilized to generate and sense magnetic fields within the human body, enabling non-invasive diagnostics and imaging.


Micro magnets may be small, but their impact on sensing technology is big. These pint-sized magnets empower a wide range of sensors, which are used in a wide variety of applications from daily gadgets to cutting-edge devices. As technology advances, it will continue to shape the future of sensing technology in exciting and unforeseen ways.

While customers may have a basic understanding of magnets, specialists can guide them toward more appropriate and effective solutions. At Tengye, we’re thrilled to be early participants in your new projects. Our passion for magnets extends from material selection and design optimization to providing magnetic solutions. We hope to bring our knowledge and experience to the forefront by actively engaging in your upcoming projects. Get the right magnet solution with our expert assistance. Fill out the form and work with experts to solve the problems of neodymium magnet coatings.

Featured image source: Ubuy UK and Monarch Instrument

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Jonah Jin

Jonah Jin
Managing Director

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