What is a magnetostrictive sensor?

What is Magnetostriction?

Have you ever thought about what happens when you bend a metal piece or twist it? When you do this, its called "strain. " Scientists are investigating this effect, and they measure these transitions in a metal’s magnetic domain using something called magnetostriction. Magnetostriction is a specific term that refers to the alteration of the shape or dimension of a magnetic material under the influence of the external magnetic field. This is an important effect because it allows us to produce specialized devices known as sensors. In a wide range of applications, these sensors can sense minute variations in magnetic fields.

How Do Magnetostrictive Sensors Works?

Magnetostrictive sensors are amazing devices where an electrical signal is passed through a wire or rod. This wire is composed of a magnetostrictive sensor metal. As the electric signal passes through the wire, a magnetic field is generated around it. This new magnetic field is then coupled with the magnetic field from a nearby magnet. The two fields add constructively to form a wave moving along the wire. When this wave propagates to the end of the wire, it gets reflected. By determining how long it takes for the wave to return to its original location, we learn the distance between the magnet and the copper coil. This can measure distances less than one millimeter very accurately. Such precision is critical in many applications.

How Various Industries Benefit From Magnetostrictive Sensors

Magnetostrictive Sensors provide better control and monitoring of machines and systems, thus revolutionizing many industries. In the automotive sector, these sensors control the positioning of critical engine components such as the valves and throttle body, for instance. In the aerospace sector, they are used to measure how wings of an aircraft move and control landing gear. Magnetostrictive sensors are highly beneficial for the controlling of robots, assembly lines, and conveyor systems within the manufacturing industry. They make sure everything goes as it should. For example, these sensors have been used in prosthetic limbs to enable person who utilize them to help keep track of the moving parts. They also assist in positioning MRI machines correctly to guarantee accurate imaging.

Conclusion

Magnetostrictive sensors are unique types of sensors that operate based on the magnetostrictive position sensor theory to sense the changes in the magnetic fields. They have a reputation of high accuracy, reliability and durability. These sensors have various types and can be tailored as per varying requirements in different sectors. To read more about magnetostrictive sensors please feel free to visit our website or contact us.