发明名称 |
Microwave leakage field sensor for measuring moisture and/or density |
摘要 |
The microwave leakage field sensor for measuring moisture and/or density of dielectric materials is distinguished by the fact that it is of essentially rotationally symmetrical design and transmissive for electromagnetic radiation in the axial direction toward at least one side, and that an essentially rotationally symmetrical alternating field of standing waves can be generated in it, the spatial period of which field in the peripheral direction is less than the vacuum wavelength at the frequency of the alternating field.
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申请公布号 |
US6316946(B2) |
申请公布日期 |
2001.11.13 |
申请号 |
US19980154563 |
申请日期 |
1998.09.16 |
申请人 |
MANFRED TEWS |
发明人 |
HERRMANN RAINER;ZAAGE STEFAN |
分类号 |
G01N22/00;G01N22/04;(IPC1-7):G01R27/04;G01R27/32 |
主分类号 |
G01N22/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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