数码相机及T3经纬仪在相似材料模拟中的应用

Application on digital camera and T3 theodolite in similar material model test

为了实现高效、高精度地获取相似材料模拟实验中待测点的瞬间数据,采用高分辨率数码相机联合T3经纬仪的方式。通过在模型框架上布置像控点,采用经纬仪空间前方交会法获取控制点坐标,在GIS专业软件ArcGIS下用控制点坐标纠正数码相机获取的模型照片,从而直接采集模型中待测点的坐标数据。通过工程实例验证,该方法较传统方法快捷、简便和精确。

In order to obtain instant high precision data at test points in similar material model test effectively, a digital camera and T3 theodolite were used in this study. The cameras were mounted at image control points on model frame. The coordinates of control points were obtained by spatial forward intersection method using T3 theodolite. Using ArcGIS software, the photos were corrected by control point coordinates. Then the coordinates at test points were obtained. Comparing with other traditional methods, this method is quicker, simpler and more accurate.