| 书目名称 | Electromagnetic Aquametry | | 副标题 | Electromagnetic Wave | | 编辑 | Klaus Kupfer | | 视频video | | | 概述 | Reports the state of the art in electromagnetic measuring and sensing water and moisture.With contributions from the world‘s leading experts.Includes supplementary material: | | 图书封面 |  | | 描述 | Mformation about a material can be gathered from its interaction with electromagnetic waves. The information may be stored in the amplitude, the phase, the polarisation, the angular distribution of energy transportation or the spectral characteristics. When re trieved from the wave, certain material properties may thus be determined indirectly. Compared on the one hand to direct material analysis, an indirect method requires calibration and is prone to interference from undesired sources. On the other hand, however, it permits the determination of features inaccessible by direct methods, such as non-destructive material interrogation, high measurement speed, or deep penetration depth. However, being a physical method, the use of electromagnetic waves is still handicapped by the lack of acceptance by many chemists, who are used to applying direct approaches. Historically, the first application of electromagnetic wave interaction with mat ter involved measurement of amplitude changes at a single frequency caused by material properties, and it is still used today by some systems. This approach was soon supplemented by single frequency phase measurements, in order to avoid distortion | | 出版日期 | Book 2005 | | 关键词 | artificial neural networks; electromagnetic wave; measurement; metrology; model; moisture; network; neural | | 版次 | 1 | | doi | https://doi.org/10.1007/b137700 | | isbn_softcover | 978-3-642-06072-4 | | isbn_ebook | 978-3-540-26491-0 | | copyright | Springer-Verlag Berlin Heidelberg 2005 |
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发表于 2025-3-21 19:20:08
