发明名称 |
Moisture protection for an electromechanical transducer |
摘要 |
A strain gauge with a strain-sensitive electrical resistor track and connector electrodes for contacting the resistor track arranged on a carrier substrate is provided with a protective coating having inorganic materials and covering at least part of the carrier substrate and/or of the resistor track and/or of the connector electrodes. The build-up structure of the protective coating over the range of the coating thickness is inhomogeneous, and the protective coating is underlaid with a surface-smoothing polymer layer which evens out rough surface portions of the area to be coated. The layer thickness of the surface-smoothing layer is at least equal to the thickness of the protective coating. A strain gauge of this type can be used in a force-measuring cell, where the surface-smoothing layer and the protective coating can be deposited after an uncoated strain gauge has been installed on the deformable body of the force-measuring cell.
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申请公布号 |
US2005163461(A1) |
申请公布日期 |
2005.07.28 |
申请号 |
US20050051628 |
申请日期 |
2005.01.27 |
申请人 |
METTLER-TOLEDO GMBH |
发明人 |
ZIEBART VOLKER;TELLENBACH JEAN-MAURICE |
分类号 |
G01B7/16;G01G3/14;G01L1/22;(IPC1-7):G02B6/00 |
主分类号 |
G01B7/16 |
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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