| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pickup coil capable of reducing heat thereof. SOLUTION: A pickup coil is made up of a core 1 with an E-shaped cross section and a pair of cables 3 turned around a projected part 1A at a central part of the core 1. In this case the pair of cables 3A and 3B, in parallel with a central line (C) of the projected part 1A, are turned along the project 1A at the central part of the core 1. In this constitution, the effects of magnetic flux on the cable 3A or 3B can be made equal, when the magnetic flux is generated from an induced line path 10. Then, each current at the cable 3A and 3B is balanced. Since current is balanced at each cable 3A and 3B, each heat is made equal, and thereby heat can be reduced as compared with conventional case.</p> |
