| 摘要 |
The present invention relates to a measuring device for measuring the humidity of materials, in particular the humidity of textiles. The measuring device according to the invention comprises an evaluation circuit EC having electrical terminals (8, 9), an oscillatory circuit (5) and a primary electrical circuit (1) contactlessly coupled to a secondary electrical circuit (2). Each of said primary and secondary circuit (1, 2) comprises a ferromagnetic element (3, 6) and a coil (4, 7) wrapped around it. Switching means (10) are provided for short-circuiting the coil in the secondary circuit (2) in response to the electrical resistance of an electric load connected the electrical terminals (8, 9) and output means (11) for outputting signals in response to the short-circuiting of the switching means (10) are also provided. A laundry drying machine comprising a measuring device is also disclosed.
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