| 摘要 |
<p>In a laminated core for a transformer or other electrical apparatus, at least one lamination e.g. (10) has a sensor applied to it, the sensor being disposed at least partially between that lamination and an adjacent lamination. The sensor comprises a thin film structure deposited on a surface of the lamination: because it is of a thin film structure, the sensor does not create any significant gap between the adjacent laminations. The sensor may comprise a thermocouple (12) or a search coil for sensing the magnetic flux perpendicular to the plane of the lamination (sensor 14) or parallel to that plane (sensors 16, 18).</p> |
