激光准直仪由激光器作为光源的发射系统、光电接收系统及附件三大部分组成。激光准直仪将激光束作为定向发射而在空间形成的一条光束作为准直的基准线，以标定直线的一种工程测量仪器。
激光准直仪拓宽了应用为范围。
开发了便携式激光准直仪及直线度误差测量、评定软件。
The portable laser collimator and the straightness measuring and evaluating software are developed.
结合水平仪、自准直仪、激光准直仪等测量仪器开发了直线度误差实验教学软件。
Based on the alignment measurements such as level meter, gradienter and laser collimator, the instructional software for straightness measuring and evaluating is developed.
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