光电液位传感器及其在桥梁挠度自动测量中的应用
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摘要
挠度是反映桥梁线性变化的重要参数,光电液位传感器是一种新型的连通管液位检测传感器,它的测量精度能达到0.1mm。将光电液位传感器、连通管、485总线、RS485/232转换卡、计算机等组成桥梁挠度自动测量系统,能够对大型桥梁挠度进行多点、长期、在线、远程、自动监测且不受桥梁现场高尘、高湿和浓雾的影响。目前,该系统已经成功应用到重庆大佛寺长江大桥上,测量结果表明可以准确获取桥梁的挠度信息,测量的挠度值能够真实反映桥梁的挠度变化,是一种有效的桥梁挠度自动测量方法。
The deflection is an important parameter that reflects the bridge linear variety.The optoelectronic liquid-level sensor is a novel kind of senor for detecting the connected-pipe liquid-level,and its measurement accuracy is in the 0.1mm level.The bridge deflection measuring system is made up of the optoelectronic liquid-level sensors,connected pipe,485 bus,RS485/232 transition card,computer etc.The system can be applied for multipoint,long-period,online,remote,automatic measurement of long-span bridge deflection and it is not affected by the dust,humidity,and fog in the bridge.At present,the system has been successfully applied in the Dafosi Bridge over Yangtze River in Chongqing.The measuring data show that the system can accurately collect the bridge deflection information and the measured deflection can really reflect the bridge deflection variety,so it is an effective method for automatically measuring the bridge deflection.
The deflection is an important parameter that reflects the bridge linear variety.The optoelectronic liquid-level sensor is a novel kind of senor for detecting the connected-pipe liquid-level,and its measurement accuracy is in the 0.1mm level.The bridge deflection measuring system is made up of the optoelectronic liquid-level sensors,connected pipe,485 bus,RS485/232 transition card,computer etc.The system can be applied for multipoint,long-period,online,remote,automatic measurement of long-span bridge deflection and it is not affected by the dust,humidity,and fog in the bridge.At present,the system has been successfully applied in the Dafosi Bridge over Yangtze River in Chongqing.The measuring data show that the system can accurately collect the bridge deflection information and the measured deflection can really reflect the bridge deflection variety,so it is an effective method for automatically measuring the bridge deflection.
引文
[1]徐日旭.桥梁检测[M].北京:人民交通出版社,1992.11~12.
[2]胡伍生.水准测量法观测桥梁挠度的应用[J].华东公路,1996,(2):72~74.
[3]曾小明,张文基.基于全站仪的桥梁挠度检测研究[J].黑龙江工程学院学报,2003,17(1):39~41.
[4]周正想,王洪烈.几种桥梁挠度测量方法的比较[J].公路,1995,(7):46~47.
[5]侯兴民,杨学山,廖振鹏,等.实时测量桥梁挠度[J].地震工程与工程振动,2002,22(1):67~72.
[6]杨学山,马树林.QY型倾角仪瞬态反应的测量方法[J].地震工程与工程振动,2002,22(2):97~100.
[7]侯兴民,杨学山,马树林,等.陶赖昭松花江特大桥挠度测量分析[J].地震工程与工程振动,2003,23(2):77~80.
[8]董辉,陈伟民,符欲梅,等.一种激光图像挠度测量方法[J].传感器技术,2004,23(10):63~66.
[9]夏哲,付红桥,张文,等.桥梁变形图像监测系统调制传递函数[J].重庆大学学报(自然科学版),2004,27(6):17~20.
[10]过静?,戴连君,卢云川.虎门大桥GPS(RTK)实时位移监测方法研究[J].测绘通报,2000,(12):4~5.
[11]胡卫军.重庆大佛寺长江大桥连通管式光电挠度测量系统的实用化研究[D].重庆:重庆大学,2003.13~16.
[12]陈伟民,胡卫军,陈小强,等.一种透射式半集成光电液位测量方法[J].仪器仪表学报,2005,26(4):425~427.
[2]胡伍生.水准测量法观测桥梁挠度的应用[J].华东公路,1996,(2):72~74.
[3]曾小明,张文基.基于全站仪的桥梁挠度检测研究[J].黑龙江工程学院学报,2003,17(1):39~41.
[4]周正想,王洪烈.几种桥梁挠度测量方法的比较[J].公路,1995,(7):46~47.
[5]侯兴民,杨学山,廖振鹏,等.实时测量桥梁挠度[J].地震工程与工程振动,2002,22(1):67~72.
[6]杨学山,马树林.QY型倾角仪瞬态反应的测量方法[J].地震工程与工程振动,2002,22(2):97~100.
[7]侯兴民,杨学山,马树林,等.陶赖昭松花江特大桥挠度测量分析[J].地震工程与工程振动,2003,23(2):77~80.
[8]董辉,陈伟民,符欲梅,等.一种激光图像挠度测量方法[J].传感器技术,2004,23(10):63~66.
[9]夏哲,付红桥,张文,等.桥梁变形图像监测系统调制传递函数[J].重庆大学学报(自然科学版),2004,27(6):17~20.
[10]过静?,戴连君,卢云川.虎门大桥GPS(RTK)实时位移监测方法研究[J].测绘通报,2000,(12):4~5.
[11]胡卫军.重庆大佛寺长江大桥连通管式光电挠度测量系统的实用化研究[D].重庆:重庆大学,2003.13~16.
[12]陈伟民,胡卫军,陈小强,等.一种透射式半集成光电液位测量方法[J].仪器仪表学报,2005,26(4):425~427.
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