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Traditional current transformers are often limited by magnetic saturation, narrow measuring range and cumbersome installation, failing to adapt to new power scenarios such as new energy systems, smart grids and industrial frequency conversion. As a new generation of flexible current sensing device,

Roche coil, also known as current measurement coil or differential current sensor, is an important component in the field of current measurement. It is composed of a circular coil uniformly wound on a non-magnetic material, also known as a hollow coil due to the absence of an iron core.The principle

Roche coils and magneto electric resistors (which may refer to sensors that operate based on the magnetoresistance effect, such as TMR sensors, etc.) are important tools in the field of current measurement, but they have significant differences and connections in their working principles, structural

Roche coils cannot measure direct current. The following is a detailed explanation of this viewpoint:measuring principle Roche coil is a current sensor based on Faraday's electromagnetic induction principle. When the primary current IP changes, it will cause a change in the induced voltage U output