| 摘要 |
An inductive transducer shielding method and an inductive transducer using the inductive transducer shielding method. An annular shielding coil (2.12, 2.13) is added outside an annular detection coil (2.2, 2.3); the shielding coil (2.12, 2.13) surrounds the detection coil (2.2, 2.3); the radial thickness of the shielding coil (2.12, 2.13) is less than the radial thickness of the detection coil (2.2, 2.3); magnetic fields generated by the two coils are in opposite directions and are partially offset; and when there is interference, the magnetic fields generated by the two coils are simultaneously affected and are attenuated or increased by the same strength. Therefore, the strength of the magnetic field after superposition can remain constant, and a resonant voltage can not decline, which not only improves the anti-interference degree of the inductive transducer, but also does not affect the sensitivity of the inductive transducer. |
