发明名称 |
Method and apparatus for scour depth measurement |
摘要 |
A method and apparatus for measuring scour depth in a waterway bed is described. The apparatus utilizes magnetic attraction between a weight resting on the waterway bed and a magnetic probe within a guide chamber to which the weight is attached. Magnetic attraction between the probe and the weight retains the probe in an aligned position with the weight, enabling a user to detect a reduced force in the support line to identify the location of the weight and thus the riverbed. In a second embodiment, the inventive device includes a second weight slidably attached to the guide enabling a measurement of infill in a waterway bed scour. In the method according to the invention, the weight is placed upon the waterway bed and allowed to rest there. A probe is then inserted into the chamber and allowed to descend to the level of the weight where magnetic attraction supports the probe. The location is identifiable by a reduced tension in the support line, and the depth can be determined by measuring the length of the support line from the waterway surface to the probe.
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申请公布号 |
US5479724(A) |
申请公布日期 |
1996.01.02 |
申请号 |
US19940208534 |
申请日期 |
1994.03.09 |
申请人 |
NAHAJSKI, ANTHONY P.;NAHAJSKI, STUART E. |
发明人 |
NAHAJSKI, ANTHONY P.;NAHAJSKI, STUART E. |
分类号 |
E02B3/00;G01B5/18;G01B7/26;G01C13/00;(IPC1-7):G01B5/18;E21B47/04 |
主分类号 |
E02B3/00 |
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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