Do You Know Hall Effect Sensor

A Hall effect sensor is a transducer that varies its output voltage in response to a magnetic field. Hall effect sensors are used for proximity switching, positioning, speed detection, and current sensing applications. Application:Position sensing, Direct current (DC) transformers, Automotive fuel level indicator,Keyboard switch.

Hall Effect Sensor


Advantages
A Hall effect sensor may operate as an electronic switch.
· Such a switch costs less than a mechanical switch and is much more reliable.
· It can be operated up to 100 kHz.
· It does not suffer from contact bounce because a solid state switch with hysteresis is used rather than a mechanical contact.
· It will not be affected by environmental contaminants since the sensor is in a sealed package.
In the case of linear sensor (for the magnetic field strength measurements), a Hall effect sensor:
· can measure a wide range of magnetic fields
· is available that can measure either North or South pole magnetic fields
· can be flat

评论

发表评论

此博客中的热门博文

The Process Technology Of Hall Effect Sensor

图片
In order to accurately distinguish the cause of  Hall Effect Sensor  abrupt signal generation, a wavelet band analysis method based on mathematical model is proposed. For the measurement and control system in industrial process, the relationship between the frequency composition of the output mutation signal and the cause of the mutation is analyzed. Using wavelet band analysis technology, the high and low frequency signals are separated, and energy statistics are performed. According to the change of the energy ratio of high and low frequency signals, the cause of the mutation signal is judged. The computer simulation of the classic control system and the experimental results of the constant pressure water supply system show that the method can effectively diagnose whether the  Magnetic Sensor  is faulty. In the measurement and control system, the output signal of the sensor is affected by many factors, and often abrupt changes. These mutation point values contai...
阅读全文

Review of Our Munich Electronic Components Exhibition

图片
International Electronic Components Exhibition in Munich, Germany began in 1964, every two years, is Europe and the world's largest and most influential professional electronic components Expo, the world's electronic and inspection systems components and components industry Suppliers are participating in the exhibition. Range of exhibition Electronic Components & Components, High and Low Voltage Power Supplies and Switchgear, Control Components, Circuit Protection Devices, Power Supplies, Batteries, Low Voltage Cables, Cables, Harnesses, Electromechanical Components and Connectors, Antenna Technology, Passive Components, Silicon Crystal Devices , Electronic Materials, Welding Technology, Semiconductor Devices, Insulation Materials, Magnetic Materials and Products, Connectors, Audio Components, Speakers, Buzzers, Optoelectronics, Optical Components and Connectors Technology, Display Devices, TFT-LCDs, Liquid Crystal Devices . We attended the trade fair and this pi...
阅读全文

What is the difference and connection between the resolution and accuracy of the Linear Hall Sensor?

图片
  The resolution of the   Linear Hall Sensor   is essentially how much displacement can produce an identifiable electrical signal. For example, a displacement sensor measures the displacement of an object. If the displacement is below one micron, the probe does not react. If the displacement exceeds one micron, it will change. The output of the probe, then say that this micron is the resolution of the probe. Linear Hall Sensor Accuracy has a lot of understanding, it may refer to absolute error or linearity. To put it bluntly, is your ruler accurate or not. One micrometer you measured, how much different from a micrometer of the metrology standard. Others will say repeatability as precision. In fact, he said that under the same measurement conditions, only the probe is removed and then reset to the same measurement point, and the measurement results are drifted. Or do not remove the probe, just look at it after a while, whether the measurement results drift. The relationsh...
阅读全文