What are the sensing methods of current sensors?

A current sensor is a device used to measure the current value in a circuit and is widely used in power systems, electronic equipment, machinery manufacturing and other fields. Its working principle is to convert the current in the sensing circuit into an electrical signal output proportional to the current. Common current sensors in HEMEI Electronics have a variety of sensing methods, such as these.

1. Magnetoelectric induction

Magnetoelectric induction current sensor is a device that uses the principle of magnetic field induction to measure current. It converts the current in the circuit into voltage or electrical signal output through magnetic field induction inside the sensor. Magnetoelectric induction current sensor has the characteristics of fast response speed, high precision and good linearity, and is widely used in power systems and electronic equipment.

2. Electric field induction

Electric field induction current sensor is a device that uses the principle of electric field induction to measure current. It converts the current in the circuit into voltage or electrical signal output through electric field induction inside the sensor. Electric field induction current sensor has the characteristics of wide measurement range, fast response speed and high precision, and is widely used in power systems and electronic equipment.

3. Resistive induction

Resistive induction current sensor is a device that uses the principle of resistive induction to measure current. It converts the current in the circuit into voltage or electrical signal output through the resistance induction inside the sensor. The resistance induction current sensor has the characteristics of simple structure and low price, and is suitable for some occasions with low precision requirements.

4. Ultrasonic induction type

The ultrasonic induction current sensor is a device that uses the ultrasonic induction principle to realize current measurement. It converts the current in the circuit into voltage or electrical signal output through ultrasonic induction inside the sensor. The ultrasonic induction current sensor has the characteristics of non-contact, high precision, and wide measurement range, and is suitable for current measurement in some special occasions.

In general, the current sensor is a very important electrical measurement device with a variety of induction methods, each of which has its characteristics and scope of application. When selecting a current sensor, it is necessary to select a suitable induction method according to actual needs and usage occasions.