Th lf i d t f th il i i l ti l t th l th coil wound

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Th lf i d t f th il i i l ti l t th l th coil wound on a ferromagnetic core. 31 The self inductance of the coil is inversely proportional to the length of the air gap. When the target is near the core, the length is small, thus increases the self inductance. Inductive Transducer (variable reluctance) displacement t t target air gap core (ferromagnetic) 32 output
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