因瓦水准尺制造与检定中若干问题的研究

Research on Manufacture and Verification of Invar Levelling Staff

因瓦水准尺作为精密水准测量系统的组成部分,其质量的高低直接影响到水准测量成果的精度。分析了不同制造方法对因瓦水准尺分划线质量的影响;研究了不同品质的分划线获得检定结果的质量;介绍了因瓦水准尺检定的技术要求。

Invar leveling staff is an important part of leveling measurement system,which directly influence the accuracy of leveling measurement result.Different manufacturing methods produce different edges of bar lines.The verification results of invar levelling staffs were distorted by irregular edges of bar lines.The accuracy demands of verification instruments and the verification standard for invar levelling staff were also discussed.