Current Sensor
Current sensor is a detection device that can sense the information of the measured current, and can transform the detected information into an electrical signal that meets certain standards or other required forms of information output according to certain rules to meet the needs of Information transmission, processing, storage, display, recording and control requirements.
Current sensors, also called magnetic sensors, can be used in household appliances, smart grids, electric vehicles, wind power generation, etc. Many magnetic sensors are used in our lives, such as computer hard drives, compasses, household appliances, etc.
Current sensors are mainly used for industrial control and independent voltage and current measurement. Therefore, they generally do not have a nominal angle difference index that is closely related to the accuracy of power measurement. Therefore, they are not suitable for high-precision power measurement.
With the development of frequency conversion technology and energy-saving technology, it is necessary to accurately evaluate the energy efficiency of various frequency conversion speed control devices. However, electromagnetic voltage and current transformers can generally only accurately measure the power of power frequency sinusoidal circuits. The new variable frequency power sensor is a combined voltage and current sensor. This type of sensor directly outputs digital quantities and uses optical fiber for transmission, which can effectively avoid losses and interference in the transmission link. And it has small ratio difference and angular difference in a wide frequency range, and can accurately measure various types of variable frequency electricity (voltage, current, power and harmonics, etc.). It is widely used in product inspection and energy efficiency evaluation of hybrid electric vehicles, electric vehicles, solar power generation, wind power generation, inverters, variable frequency motors and fuel cells.
