摘要
基坑测斜工作是保障基坑安全的重要环节,但目前仍采用人工使用测斜仪监测的常规方法,不仅工作效率低,而且监测频率低,无法满足数据实时采集和自动化管理的要求。结合物联网技术,研究开发了一种基于倾角传感器的远程自动基坑测斜系统。本文介绍了其工作原理,系统构成,以及对其性能进行的试验。经测定,传感器分辨率为0.000002rad,长期数据误差0.0002rad,工程适用精度为0.0001rad。在实验室环境下,系统防水性达到100m水压,测量相对误差为0.12mm/m,初步满足了基坑工程监测的远程自动化要求。
Slope monitoring is a critical step to ensure the safety of excavation.However,conventional manual method using inclinometer is unable to fulfill real-time data acquisition and automated management because of its inefficiency and low monitoring frequency.So we use Internet of Things technology to develop a remote and automatic slope monitoring system based on electronic dip angle sensor.This paper presents the operating principle,constitution of this system and tests of its performance.According to the results,resolution,long term error and applicable accuracy of the sensor are 0.000002 rad,0.0002 rad,and 0.0001 rad respectively.In the laboratory,the system has water repellency under the water pressure of 100 mand relative tolerance of 0.12mm/m,which tentatively satisfies remote automation of excavation monitoring.
出处
《电子测量技术》
2016年第4期27-30,共4页
Electronic Measurement Technology
关键词
基坑
测斜
水平位移
MEMS
倾角传感器
excavation
slope monitoring
horizontal displacement
MEMS
inclinometer
