光纤光栅传感技术的基坑压力传感器试验研究

Experimental Study on Pressure Sensor of Foundation Pit Based on Fiber Bragg Grating Sensing Technology

随着建筑高度的增加,对基坑监测的技术手段提出了更高的要求,文章基于光纤光栅传感原理设计了弹簧-锥柱式光纤光栅压力传感器,并对其进行了压力传感试验,试验表明压力传感器线型拟合度好、反应灵敏、可用于基坑土压力及其他结构监测,为工程建设提供数据支持,可推广使用。

With the increase in building height,higher requirements have been put forward for technical means of foundation pit monitoring.Based on the principle of fiber Bragg grating sensing,this article designs a spring-cone fiber Bragg grating pressure sensor and conducts pressure sensing tests on it.The tests show that the pressure sensor has good linear fitting and sensitive response.It can be used for foundation pit earth pressure and other structural monitoring to provide data support for project construction,and has a potential for promotion.