The measurement accuracy of the prism constant will directly affect the quality of observation results of total station in the precision engineering survey .Because the common methods are subject to the constraints of many factors such as field or facilities ,the measurement process is usually time-consuming and laborious . In order to get through the limitation of traditional methods , a new rapid method is proposed in this paper .By observing the array of several 360° mini prisms with total station at different stations ,it uses the adjustment condition with added parameters to solve the prism constant .This method is simple and easy to operate without professional field and auxiliary equipment ,and has good effect .%在精密工程测量中,棱镜(加)常数测定的准确与否会直接影响全站仪观测成果的质量.而常规的检测手段往往受到场地、设施等因素的制约,测量过程费时费力.因此,提出一种新的快速测定方法,旨在突破传统方法面临的条件限制,即采用全站仪在多个测站反复观测一组360°棱镜阵列,再通过附有参数的条件平差迭代求解棱镜常数.本方法无需专业场地和辅助设备,简捷易行,效果良好.
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