News | company news | Nov 25,2023
The fluxgate current sensors are a sensor used to measure current, which uses the fluxgate effect to achieve measurement. This sensor is also known as a fluxgate current sensor, fluxgate current sensors, or fluxgate current transmitter.
Working Principle:
Fluxgate effect: The fluxgate effect means that in magnetic materials, when the material is affected by an external magnetic field, the magnetic flux (magnetic flux) within the material will change. This change can be measured and correlated with external factors causing the change, such as electrical current.
Effect of Current: Fluxgate current sensors will measure the effect of a magnetic field produced by passing an electric current through a magnetic loop (usually a ring-shaped magnetic chip). When current passes through the conductors of the gauge, the resulting magnetic field causes a change in magnetic flux.
Sensor structure: The core part of the sensor is a magnetic loop, usually made of some kind of soft magnetic material. When measuring current, this loop senses changes in the magnetic field produced by the current, causing changes in magnetic flux.
Output signal: The sensor measures this change in magnetic flux and converts it into a corresponding voltage or current output signal. The change in the output signal is proportional to the current through the sensor.
Advantage:
Fluxgate current sensors have high accuracy, wide measurement range and excellent linear characteristics.
They generally have less impact on the external environment because the fluxgate effect is primarily affected by electrical current.
It performs well in applications with high precision and large dynamic range, and is suitable for applications requiring precise current measurement.
Application:
Industrial automation, especially in power systems for current measurement and monitoring.
Current control of power electronics and frequency converters.
Electric vehicle charging equipment.
Overload protection and fault detection and other fields.
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