| 摘要 |
The invention relates to an apparatus for measuring properties of a moving paper web or cardboard web. The apparatus comprises a sensor and a counterpart. The sensor comprises at least one coil. The sensor is arranged on a first side of the moving web and the counterpart is arranged on a second side of the moving web. The coil comprises a plurality of layers, each layer constituting a part of the coil, the layers being superimposed and coupled in series to constitute the coil. |
