电子数字显示JSS30A收敛计是地下等工程中进行收敛变形监测,新型、科技含量高、精度高的长度测量仪器。对它的内部符合精度、稳定性进行检测,并进行概率t分布假设检验和方差分析;对该仪器在作业中的操作方法、测站限差以及外界因素变化对于仪器的影响等进行探讨;对观测结果精度等方面的问题进行研究。对于相关工程质量的正确评判具有现实意义。 Electronic digital display JSS30A convergence meter is underground and other projects for convergence and deformation monitoring, new, high technology content, high precision length measuring instruments. Its internal compliance with the accuracy and stability of the test, and the probability distribution of t hypothesis testing and analysis of variance; the operation of the instrument in the operation method, the station limits and changes in external factors on the impact of the instrument to explore; The accuracy of observation results and other aspects of the study. It is of practical significance for the correct judgment of the related project quality.