| 摘要 |
<p>The invention relates to a magnetic field circulation sensor which includes: an excitation unit (3, 20) suitable for generating an excitation current in an elongate main excitation coil (10) extending around a flexible superparamagnetic core (11) that is elongate and includes a flexible matrix having magnetic particles dispersed therein; a verification means (23, 24, 30) including a verification excitation coil suitable for generating a verification excitation magnetic field in the core using a predetermined verification current; and a measurement means (3, 21) for providing a measurement of magnetic field circulation in the core in operating mode and in verification mode.</p> |
