How does Hall Liner Sensor work

The Hall Liner Sensor is a contactless sensor that uses the Hall effect to detect the presence of a magnetic field. When a magnet is brought near the sensor, the magnetic field interacts with the semiconductor material of the sensor, causing a change in the electrical resistance of the sensor. This change in resistance can be used to detect the presence of a magnet and determine its strength.

• What are the common types of Hall Liner Sensor?

• What is the definition of Hall Liner Sensor?

• What is the physical principle of Hall Liner Sensor?

What are the common types of Hall Liner Sensor?

1. Hall pressure sensor: One end of the spring piece of the sensitive element is fixed, and the other end is installed with a Hall element. When the input pressure increases, the spring stretches, causing the Hall element in the constant gradient magnetic field to produce a corresponding displacement, and the output voltage from the Hall element can reflect the pressure.

2. Hall current sensor: An air gap is opened on the magnetic core, and a linear Hall element is built in. After the device is powered on, the Hall voltage output by it can obtain the magnitude of the current flowing in the wire.

   
   

What is the definition of Hall Liner Sensor?

The Hall line is an important part of the Hall sensor, and the Hall sensor refers to a magnetic field sensor made according to the Hall effect. It can be divided into two types, namely, a linear Hall sensor and a switch Hall sensor. The advantages of the Hall sensor are solid structure, small size, light weight, long life, easy installation, low power consumption, high frequency, vibration resistance, good corrosion resistance, etc. Its main uses are to measure displacement, force, Angular velocity and linear velocity etc.

What is the physical principle of Hall Liner Sensor?

The essence of the Hall effect is that when carriers in a solid material move in an external magnetic field, the trajectory is shifted due to the Lorentz force, and charge accumulation occurs on both sides of the material, forming a charge perpendicular to the direction of the current. The electric field finally balances the Lorentz force and the repulsion force of the electric field on the carriers, thereby establishing a stable potential difference on both sides, that is, the Hall voltage. The ratio of the orthogonal electric field and the product of the current intensity and the magnetic field intensity is Hall Coefficient, the ratio of the parallel electric field and the current intensity is the resistivity. A large number of studies have revealed that not only negatively charged electrons but also positively charged holes participate in the conduction process of materials.

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