一种利用液面建立水平准线的方法  

A method for establishing a horizontal reference line using a liquid surface

作　　者：刘浩 田野 毛斌 赵迪 任苗苗 Liu Hao;Tian Ye;Mao Bin;Zhao Di;Ren Miaomiao(Shaanxi Institute of Metrology Science;Gansu Institute of Metrology)

机构地区：[1]陕西省计量科学研究院 [2]甘肃省计量研究院

出　　处：《上海计量测试》2023年第4期45-48,共4页Shanghai Measurement and Testing

摘　　要：介绍了一种利用液面折射原理建立水平准线方法,包括使用自准直光管和正多面棱体来构造水平准线和铅垂准线,从而实现对精密水准仪、水平陪检标准器以及垂准仪进行校准。通过自准直光管和液面下的反射镜进行对准,构造出铅垂准线。然后使用正多面棱体和另一支自准直光管,构造出水平准线。这种方法的准确度较高,符合“水平”的定义,结构简单。同时,还给出了通过改变容器的形状来减少液面变形的方案。This article introduces a method to establish a level reference line using the principle of liquid surface refraction,including the use of an autocollimator and a positive multi-surface prism to construct the level reference line and plumb reference line,thereby calibrating precision spirit levels,level inspection standards,and plumb lines.The plumb reference line is constructed by aligning the autocollimator with the reflecting mirror below the liquid surface.Then,the level reference line is constructed using the positive multi-surface prism and another autocollimator.This method has high accuracy and conforms to the definition of"level",and its structure is simple.Additionally,a scheme to reduce liquid surface deformation by changing the shape of the container is presented.

关 键 词：水平准线 水准仪 垂准仪 自准直仪 

分 类 号：TB938.1[一般工业技术—计量学]