发明名称 |
Low cost time domain reflectometry system for bridge scour detection and monitoring |
摘要 |
An apparatus for detecting and monitoring scouring around a structural member uses time-domain reflectometry (TDR) to measure the level of sediment around a submerged portion of the structural member such as a bridge pier, dock, utility crossing, or similar structure. The apparatus includes a time domain reflectometer which transmits a series of electrical pulses, a sensor which is connected with said time-domain reflectometer, and a signal analyzer which receives and interprets the portion of the electrical pulses reflected back to the source from an interface, such as water/air or water/gravel, to calculate the position of the interface along the sensor. Knowledge of the position of the interfaces before and after a scouring event and of the dielectric constant of the surrounding media allows the user to detect and monitor the level of erosion caused by scouring.
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申请公布号 |
US6121894(A) |
申请公布日期 |
2000.09.19 |
申请号 |
US19980197438 |
申请日期 |
1998.11.23 |
申请人 |
U.S. ARMY CORPS OF ENGINEERS AS REPRESENTED BY THE SECRETARY OF THE ARMY |
发明人 |
YANKIELUN, NORBERT E.;ZABILANSKY, LEONARD |
分类号 |
G01N17/00;(IPC1-7):G08C19/06 |
主分类号 |
G01N17/00 |
代理机构 |
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