| 摘要 |
<p>PURPOSE:To reduce variability of current sensitivity by improving position accuracy when a coil spool is assembled into a substrate and at the same time to facilitate fixing operation of the coil spool. CONSTITUTION:A cut part 6 is formed on a substrate 1, an engagement part 7 is provided in a spool 5, and then they are engaged. Furthermore, the substrate 1 and the spool 5 are sandwiched by a core 4 for fixing them, thus improving positioning accuracy of the spool 5 and reducing fluctuation of current sensitivity. Also, fixing operation can be simplified since no adhesive is required.</p> |
