摘要
地下金属管道防腐层的损坏,使管体产生严重腐蚀,造成管道事故,因此有必要对其防腐层进行定期不开挖检测。本文将伪随机码技术引人地下管道防腐层状况测量,在分析测量原理的基础上,建立了系统模型,并对发送端和接收端设备以及工作流程分别作了说明;对部分单元做了实验,并对整个检测系统进行了仿真实验,实验和仿真结果证明方案合理可行。
The und cause accidents. So it＇s erground metal pipes can be seriously corrupted by necessary to do regular nondestructive detection of the damages of their anticorrosive layers and such anticorrosive layers. In this paper, the technique of pseudorandom code is introduced into this field. The system model is constructed based on measurement principle and the models of transmitting and receiving devices are explained respectively. In the end, the experiment to the transmitting devices and simulation to the system are done; the results show that the scheme is reasonable.
出处
《电子测量与仪器学报》
CSCD
2005年第6期74-78,共5页
Journal of Electronic Measurement and Instrumentation
基金
天津市自然科学基金项目(编号:05YFJMJC11500)。
关键词
检测技术
地下金属管道
防腐层
伪随机码
detection technique
underground metal pipes
anticorrosive layer
pseudorandom code.
