公开(公告)号：US09347823B2

公开(公告)日：2016-05-24

申请号：US14166796

申请日：2014-01-28

Applicant: National Institute of Metrology, P.R.China

Inventor： Ruoduan Sun

IPC: G01J1/10 ,  G01J1/02 ,  G01J3/02 ,  G01J1/04

CPC classification number: G01J1/0295 ,  G01J1/0437 ,  G01J1/0462 ,  G01J3/0229 ,  G01J3/0254 ,  G01J3/0297

Abstract: The present invention discloses a method for measuring absolute value of non-linear error and an apparatus thereof. The method comprises: placing N reflecting plates jointed together at the sample port of the optical measuring instrument at the same time, wherein each of reflecting plate has a same covering area at the sample port; placing an aperture along light paths of the optical measuring instrument; adjusting the number of reflecting plates as used according to a position in the measuring range of the optical measuring instrument where the non-linear error is required to be measured; following every adjustment, acquiring the output results when the adjusted reflecting plates are placed at the sample port; performing a computation processing for non-linear error to the output results; and acquiring the non-linear error of the output results of the optical measuring instrument.

公开(公告)号：US20150009501A1

公开(公告)日：2015-01-08

申请号：US14166796

申请日：2014-01-28

Applicant: NATIONAL INSTITUTE OF METROLOGY, P.R.CHINA

Inventor： Ruoduan Sun

IPC: G01J1/02 ,  G01J3/02

CPC classification number: G01J1/0295 ,  G01J1/0437 ,  G01J1/0462 ,  G01J3/0229 ,  G01J3/0254 ,  G01J3/0297

Abstract: The present invention discloses a method for measuring absolute value of non-linear error and an apparatus thereof. The method comprises: placing N reflecting plates jointed together at the sample port of the optical measuring instrument at the same time, wherein each of reflecting plate has a same covering area at the sample port; placing an aperture along light paths of the optical measuring instrument; adjusting the number of reflecting plates as used according to a position in the measuring range of the optical measuring instrument where the non-linear error is required to be measured; following every adjustment, acquiring the output results when the adjusted reflecting plates are placed at the sample port; performing a computation processing for non-linear error to the output results; and acquiring the non-linear error of the output results of the optical measuring instrument.

Abstract translation: 本发明公开了一种用于测量非线性误差绝对值的方法及其装置。 该方法包括：同时将N个反射板连接在光学测量仪器的采样端口处，其中每个反射板在采样端口具有相同的覆盖区域; 沿着光学测量仪器的光路放置孔; 根据需要测量非线性误差的光学测量仪器的测量范围中的位置调整使用的反射板数量; 在调整好的反射板被放置在采样端口之后，进行每次调整后获得输出结果; 对输出结果执行非线性误差的计算处理; 并获取光学测量仪器的输出结果的非线性误差。