发明名称 |
Device for testing the quality of rope-like materials |
摘要 |
A device for testing the quality of rope-like materials in the form of yarns, rollings, fiber bands and the like employs a microwave resonator and devices for determining the displacement of the resonant frequency and the widening of the resonance curve due to the rope-like material present in the microwave resonator. Mechanical devices are provided for transporting the rope-like materials through the measuring volume of the microwave resonator. The microwave field is homogeneous in the measuring volume and the measuring device is a microwave generator constructed for measuring the mass per length and the moisture of the rope-like materials. Sensitivity of the device is improved by using metallic elements to concentrate the electromagnetic field in the measuring volume.
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申请公布号 |
US6897659(B2) |
申请公布日期 |
2005.05.24 |
申请号 |
US20030459877 |
申请日期 |
2003.06.12 |
申请人 |
TEWS ELEKTRONIK |
发明人 |
HERRMANN RAINER;TEWS MANFRED;SCHLEMM UDO |
分类号 |
G01N22/00;G01N22/04;G01N33/36;(IPC1-7):G01R27/04 |
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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