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Views: 47 Author: Site Editor Publish Time: 2023-06-30 Origin: Site
The Hall Liner Sensor belongs to the Hall sensor, which uses the Hall effect to make the displacement drive the Hall element to move in the magnetic field to generate the Hall potential. The sensor has the characteristics of small size, simple structure, no contact, small starting torque, long service life, high reliability, good frequency characteristics, and continuous measurement.
How does the Hall Liner Sensor detect?
What are the working principles of Hall Liner Sensor?
How to determine whether the Hall Liner Sensor is good or bad?
First of all, it must be clear that the Hall Liner Sensor generally has three wires, power supply, signal, and iron, and only the magnetic pulse sensor has two wires. The difference between them is very simple.
First, unplug the sensor and measure the two wires. If the voltage is the same and both are between 0.5-3V, the resistance value of the two wires on the blocking side will be displayed, and there will be a resistance value when measuring with the AC gear. Alternating current is generated, indicating that it is a magnetic pulse sensor.
If the two lines have different voltages, and one of them has a voltage of 5-12V. The other wire has no power or the voltage is very low. At this time, use a light-emitting diode, connect one end to a wire with a low voltage, and connect the other end to a blacksmith. Start the car. If the diode flashes, it means that it is a Hall sensor, and it has also been judged Its good and bad.
There is a Hall semiconductor sheet in the magnetic field, and a constant current I passes through the sheet from A to B. Under the action of the Lorentz force, the electron flow of I shifts to one side when passing through the Hall semiconductor, causing the sheet to generate a potential difference in the CD direction, which is the so-called Hall voltage.
The Hall voltage changes with the strength of the magnetic field. The stronger the magnetic field, the higher the voltage, the weaker the magnetic field, and the lower the voltage. The Hall voltage is very small, usually only a few millivolt, but it is amplified by the amplifier in the integrated circuit. This voltage can be amplified enough to output a stronger signal.
The quality measurement of the unipolar switching Hall element: the unipolar switching Hall element is energized with 5V, and the output terminal is connected in series with the resistor. When the magnet is far away from the switching Hall element, the output voltage of the switching Hall element is high level (+5V ), when the magnet is close to the switch Hall element, the output voltage of the switch Hall element is low level (about +0.2V), which shows that the switch open Hall element is good. If the output level of the Hall switch remains unchanged without approaching or leaving the Hall switch, it means that the Hall switch is damaged.
Golden Light Electeronic Technology CO.,Ltd , is a high-tech enterprise specialized in the support service of cars and sensor parts. The business areas include: injection molding, thermal solid material packaging, stamping processing, precision hardware and mold processing, etc. It is widely used in automotive, electronics, 5g, new energy, medical, HSR, aerospace and other fields.
