The Hall sensor sounds a bit high-tech to us. Actually, it's just that we don't know it. Today, Weikewei Technology will introduce to you how amazing Hall sensors are!

By its literal meaning, we can know that it belongs to electronic devices such as sensors.

So let's first understand what a sensor is.

Sensor definition:

In fact, it belongs to a detection device that can sense the measured information and transform it into electrical signals or other required information according to certain rules to meet the requirements of information transmission, processing, storage, display, recording, and control.

Isn't it difficult to understand after reading the definition? Let's understand it this way, in fact, we all have sensors everywhere on our bodies. When we taste a food, the tip of our tongue will tell our brain whether it tastes good or not. If it tastes good, the brain will tell you to eat more, and if it doesn't taste good, the brain will tell you not to eat or eat less!

At this point, we no longer understand what sensors do. We don't have many sensors on our bodies.

Hall sensors generally refer to components on electronic devices. The working principle of a Hall sensor is that it is a transducer element that converts a changing magnetic field into a change in output voltage, used to measure the magnetic field and the physical quantities that generate and affect the magnetic field, and then converts the analog signal into a voltage in a simple form.

1、 Introduction and classification of Hall sensors

1. Hall sensors can be divided into two types: linear and switch type.

2. Linear Hall sensors can be divided into open-loop linear Hall sensors and closed-loop linear Hall sensors.

It mainly includes three parts: Hall elements, linear amplifiers, and designed followers, used for measuring AC current, DC current, and voltage.

The switch type Hall sensor mainly consists of Hall elements, differential amplifiers, voltage regulators, Schmitt triggers, and output stages, used for digital output.

2、 Characteristics of Hall sensors

① Sensitive to magnetic fields.

② Simple structure and small size.

③ Wide frequency response.

④ The output voltage varies greatly and has a long service life.

3、 Application fields of Hall sensors

Electronic products such as industry, automobiles, computers, AI, and smartphones have a wide range of applications.

Summary: Abouthall sensor On the fast lane of technological development today, regardless of whether it is a large or small system, artificial intelligence technology, autonomous vehicle technology, facial recognition technology, etc. are widely applied and can be said to run through every aspect of our lives.