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针对以往关于两点法测量直线度的文献中要求两传感器端部严格对齐的问题，进行了数学分析和计算机仿真，证明对齐误差并不影响最后的误差分离准确度，同时可在一定程度上降低对传感器安装误差的要求。
Aiming at the problem of strict alignment between the two sensors in the literatures about measuring the straightness of the two-point method in the past, the mathematical analysis and the computer simulation are carried out to prove that the alignment error does not affect the accuracy of the final error separation and can be reduced to a certain extent The sensor installation error requirements.