| 摘要 |
An electrical current sensor comprises a magnetic circuit with an air-gap, a magnetic field sensor positioned in the air-gap, and a secondary coil surrounding a branch of the magnetic circuit. The magnetic circuit comprises at least two parts ( 18, 20 ) that are assembled together, a branch portion ( 45, 46 ) of each part being insertably received in a central cavity of the secondary coil in an axial direction (A). The air-gap ( 30 ) is arranged between overlapping branch portions of each magnetic field circuit part.
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