发明名称 |
Self-compensating rolling weight deflectometer |
摘要 |
A rolling weight deflectometer for monitoring deflection of pavement under load. The deflectometer incorporates an alignment laser beam emitter that measures vertical displacement of each of a plurality of distance sensors mounted on a horizontal sensor bearer member that bends or vibrates as it is transported over a pavement for deflection measurement. The measured vertical displacements, due to member bending, allow the deflectometer to compensate for errors introduced by member bending and thereby provide a more accurate measurement of pavement deflection.
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申请公布号 |
US5753808(A) |
申请公布日期 |
1998.05.19 |
申请号 |
US19950526486 |
申请日期 |
1995.09.11 |
申请人 |
QUEST INTEGRATED, INC. |
发明人 |
JOHNSON, ROGER F.;BONDURANT PHILLIP D;MARVIN MARK H |
分类号 |
E01C23/01;G01B11/16;G01M5/00;(IPC1-7):E01C23/00 |
主分类号 |
E01C23/01 |
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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