The use of current sensors

As a device that can accurately measure current, current sensor plays a key role in many fields. The following are its main uses and application scenarios:

1.The industrial field

Power monitoring and management

In substation and grid monitoring systems, current sensors are used to measure the current of high-voltage lines in real time to help realize remote monitoring, fault detection and load management of power systems.

In the distribution system, the current is monitored to ensure the stable operation of the grid and prevent overloads and short circuits.

Motor control and protection

For motor drive systems that monitor current in real time to optimize motor performance and prevent overheating and damage.

In CNC machine tools and industrial robots, precise control of motor speed and position is ensured.

Inverter and power management

Detect current in frequency converters to optimize output efficiency and protect equipment.

In the uninterruptible power supply （UPS）， control the trigger Angle of the inverter to ensure the stability of the power supply.

2.Automotive electronics

Battery Management System （BMS）

Monitor the charge and discharge current of electric vehicle power battery to prevent overcharge or overdischarge and improve battery safety and life.

Real-time collection of battery pack voltage, temperature and current data to ensure that the battery status is controlled.

Motor drive control

The operating current of the motor is measured and fed back to the electronic control system to optimize drive efficiency and response speed.

In a hybrid vehicle, coordinate the power output of the engine and the motor.

Vehicle power and charging system

Control the current output of the vehicle power supply to ensure stable operation of the equipment.

Monitor the charging current in the charging pile to prevent overload and safety hazards.

3. Medical equipment

High precision power management

In MRI, CT and other medical equipment, ensure the stability and safety of the power supply current.

Provides accurate current control for life support devices such as pacemakers.

Patient monitoring

In some portable blood glucose meters or micro-pumps, a weak current is monitored to control the operating state of the device.

4. New energy and environmental protection

Photovoltaic and wind power

Monitor inverter current to optimize generation efficiency and ensure output power quality.

In a solar tracking system, the motor current is controlled to adjust the photovoltaic panel Angle.

Energy storage system

In an energy storage battery pack, charge and discharge currents are measured to balance the energy distribution.

In microgrids, currents are monitored to coordinate the operation of distributed energy sources.

5.Other areas

rail traffic

Monitor the current of train traction motor and brake system to ensure driving safety.

Optimize energy efficiency in high-speed trains and subways.

aerospace

In the aircraft power system, the current is monitored to ensure flight safety.

In satellites and spacecraft, electric currents are controlled to optimize equipment performance.

Smart home and consumer electronics

In home appliances such as air conditioners and refrigerators, the current is monitored to optimize energy management.

In smartphones and laptops, protect batteries and circuit boards from current fluctuations.

Sum up

The core value of current sensor lies in its high precision, real-time and reliability, which can provide critical current data support for various types of equipment. Through reasonable selection and application of current sensors, the efficiency, safety and intelligence of the system can be significantly improved. Whether it is industrial control, automotive electronics or medical devices, current sensors are an indispensable and critical component.

2025-03-20 16:06