Using Hall sensors - automotive grade chips - [Veckway]
Hall effect sensor is a sensor that responds to magnetic fields. How to correctly use itUsing Hall sensorsBecause when a Hall sensor is placed in a magnetic field, the passing electrons will move to one side of the sensor. And it will have a positive pole and a negative pole, and generate a voltage called the Hall effect. The current usage of Hall effect sensors includes proximity (distance) detection, power sensing, speed detection, and current sensing applications. For example, the speed of the time wheel and axis, alarm system, keyboard, and printer. The advantages of using Hall effect sensors are: ? an "invisible" sensor. Non contact operation, therefore there is no wear and friction. Therefore, using Hall automotive grade chips means that the number of operation cycles is not limited by physical conditions.
However, the use of Hall sensors is affected by the following conditions and some typical application characteristics:
High speed operation - may exceed 100 kHz. At high frequencies, the output of inductive or capacitive sensors begins to distort
When the packaging is not affected by dust, air, or water, capacitive sensors may be triggered by dust.
? Measurable zero speed
? Wide temperature range
? Highly repetitive operations
? Capable of measuring high currents
The disadvantages of Hall effect sensors are:
? May be affected by external interference magnetic fields
? Large temperature drift
? Large offset voltage
The signal can be blocked by black metal
If you have such usage requirements or questions, you can discuss with our technical staff.
