What You Need to Know About Hall Effect Current Transducer?

Hall effect current transducers are usually composed of Hall elements (a semiconductor material), magnetic circuits, and signal conditioning circuits. There are two main types of Hall effect current transducers: open-loop and closed-loop. They are widely used in power monitoring, motor control, and circuit protection.

Principle of Hall Effect

The Hall effect is a physical phenomenon caused by the interaction between current and magnetic field. When current passes through a conductor perpendicular to an external magnetic field, a potential difference, namely the Hall voltage, is generated in the direction perpendicular to the current and magnetic field. The voltage is proportional to the current flowing through. Therefore, the current data can be obtained by measuring the voltage.

Advantages of Hall Effect Current Transducers

High Precision and Stability

Hall effect current transducers are known for their high precision, with a basic accuracy of up to 1.0%. And some Hall effect current transducers have their automatic calibration function, which improves the accuracy. For example, the CSCA-A Series open-loop current transducers have their offset calibration.

High Safety

Hall effect current transducers use non-contact induction to measure current, which greatly increases the safety and convenience of detection.

Low Power Consumption

Hall current transducers do not need to directly contact the current-carrying conductor during measurement (especially in open-loop design), so they do not consume energy from the measurement circuit.

Compact Size

Hall effect current transducers use advanced integrated design to highly integrate Hall elements with signal processing circuits, reduce the number and volume of external components, and achieve the characteristics of compact size and easy installation.

Disadvantages of Hall Effect Current Transducers

Susceptible to External Magnetic Field Interference

Hall current transducers are magnetic induction products, which are easily disturbed by strong magnetic fields, affecting the accuracy of measuring output current. Therefore, magnetic field interference in the surrounding environment should be avoided when using them.

High Cost

Closed-loop Hall effect current transducers are more expensive than open-loop current transducers due to their complex structure and high precision.

The above content is a detailed introduction to the principle of the Hall effect and the advantages and disadvantages of Hall effect current transducers. If you want to find a current sensor with a full range of specifications, welcome to OFweek Mall, where there are hundreds of current transducers for you to choose from, supplied by original manufacturers and sold at wholesale prices.

OFweek looks forward to your arrival!

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