| 摘要 |
<p>The present invention relates to a method, device (10) and computer program product for determining the change in insulating ability of the insulation provided around a conductor (18) of an inductively operating element (16), which conductor is wound a number of turns. The device (10) includes a signal generating unit (12) that applies a signal of varying frequency to the conductor (18) and an analyzing unit (14), which receives a frequency response to said signal from the conductor, compares the received frequency response with a reference frequency response and determines the change in insulating ability based on the comparison.</p> |
