Sensor is the core part of the automatic system of driving, measuring and intelligent control technology. With the development of IoT, the demand for Hall Effect sensor magnet also increased significantly.
What is Hall Effect Principle?
The Hall Effect Principle is named for Edwin Hall after he discovered it on 1879. When place the current-carrying conductor or semiconductor into the magnetic field, a voltage which perpendicular to both electric current and field could be measured at right angles to the current path.
What is Hall Effect Sensor?
The Hall Effect sensor is an energy converter which transforms changing magnetic field into voltage which based on Hall Effect Principle, thus electrical signal will be further processed by specific electric circuit to provide the expected output. As a magnetic field sensor, Hall Effect sensor can be served for proximity sensing, current sensing, position and speed detection.
Classification of Hall Effect Sensor
The Hall Effect sensor can be classified into analogue type and digital type according to output mode. Analogue Hall Effect sensor, also known as linear Hall Effect sensor, is consists of the Hall element, linear amplifier and the emitter follower. Digital Hall Effect sensor, or switch Hall Effect sensor, includes a Hall element, regulator, differential amplifier and the Schmitt trigger. The Hall Effect sensor also can be divided into bipolar type and a unipolar type based on the operation mode.
Advantages of Hall Effect Sensor
- Fairly fast response speed, measuring sensitivity and precision also very high.
- Low power and energy consumption.
- Small volume and lightweight, and easy to install.
- Solid structure, thus will not be influenced by ambient conditions, includes humidity, dust and vibration, and hence provide long operation time.
- Maintenance frees.
- Can work between -40 to 150 deg C.
- High speed operation is reliable which over 100 kHz.
- Extremely high repeatable operation.
- Low cost.
About Hall Effect Sensor Magnet
The Hall Effect sensor magnet can be chosen among sintered Neodymium magnet, sintered Samarium Cobalt magnet, AlNiCo magnet, ceramic magnet, and bonded magnet. SDM team has also collected much experience on sensor magnet. SDM will utilized the finite element analysis to analyze magnetic field strength during the development stage, thus serve economical sensor magnet solutions to customers. Excellent process controls capability and inspection technology will give outstanding consistency products to you.
