Hall sensors are a magnetic field sensor based on Hall effect.The Hall effect is a type of magnetic and electrical effect. This phenomenon was discovered by Hall in 1879 in studying metal conductors.Later, it was found that the semiconductor and the conductive current also had this effect, and the Hall effect of the semiconductor was much stronger than the metal. The various Hall components made by this phenomenon were widely used in industrial automation technology, detection technology and information processing.aspect.
Hall sensor manufacturer
1. Shenzhen Deheng Technology Co., Ltd. 2. Hangzhou Huabao Electric Co., Ltd. 3. Shenzhen Keke Source Electronics Co., Ltd. 4. Nanjing Tolen Electronic Technology Co., Ltd.
Hall sensor model
1. UGN3503updf ratio linear Hall effect sensor 2. UGN3503LTPDF ratio linear Hall effect sensor 3. SS496a1pdf miniature ratio linear Hall sensor 4. SS496A miniature linear Hall sensor 5, SS495A2PDF miniature linear linear linear linear linear sensor
The role of Hall sensor
The displacement measurement can be used for displacement measurement, and the linear Hall sensor is placed in the middle of the two relatively different permanent magnets of the same polarity. At this time, this point can be regarded as zero -point displacement point, and the magnetic sense strength is zero.When the sensor displacement to the △ Z at the Z axis at this time, the sensor will have voltage output. At this time, the displacement size and voltage size will be properly proportional.If the force measurement is used as a displacement such as stress and tensile force, we can measure the size of the pressure and pulling force, and can make the force sensor according to this principle.Angle speed measures a piece of magnetic steel on the surroundings of general non -magnetic discs. When the Hall sensor is close to the surrounding discs, the disc will rotate for a week, and the Hall sensor will output a pulse at the same time. This principle can be measured by testing.The number of rotating circles can measure the speed of rotation if the frequency is inserted in this way.
Application of Hall sensor
Surveying in various data: Hall sensors are used in data measurement, which is the most widely used field.Hall sensors can be used to measure various physical quantities, such as measuring line speed, speed, speed, wind speed, flow rate, and material movement.When measuring these physical parameters of the object, we can add semiconductor materials to the surface of the object to be tested, and then use the Hall sensor to capture the magnetic field of the semiconductor material to measure the object in real time, so that the Hall sensor can be passed through the Hall sensorGet parameters about the speed of moving the object.Application in automation control: In life, there are many applications that use Hall effects and Hall sensors to perform automated processing on objects.When entering some high -end places, such as star hotels, they will enter those automatic doors.When these doors approach the human body, they will automatically open, which uses the Hall effect and Hall sensor to a certain extent.The human body is a semiconductor with a Hall effect. The designer sets the Hall sensor in the inductive door. When the Hall sensor is approaching the human body, the magnetic field effect is instantly captured to open the "convenient door" for people.
Hall sensor principle
The Hall current sensor is made based on the Hall principle. It has two ways to work, namely the magnetic balance and the straight.) Composition of amplifier circuit.

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