基于共光路方式测距检测方法的研究

    Research on Ranging Calibration Method Based on Common Optical Path Approach

    • 摘要: 现有手持式激光测距仪检测方法中,存在野外基线场紧缺、光路折叠法实用性不强等问题。因此针对50 m以上长度检测基准难以建立的问题,提出了溯源至全站仪的新型测距仪检测方法,并设计了操作性强的检测装置,开展了50~200 m测段的手持式激光测距仪示值误差检测实验。实验表明,基于共光路方式的测距检测方法在200 m的测量结果不确定度为1.6 mm,满足JJG 966-2010《手持式激光测距仪》检定规程的要求。最后通过比对实验,验证了该检测方法测量能力的可靠性。该研究方法为全国首个在没有基线场的条件下,将计量标准《手持式激光测距仪》的测量范围从50 m扩展到200 m,具有突出的推广应用价值。

       

      Abstract: In the existing handheld laser rangefinder detection method, there were problems such as shortage of field baseline field and poor practicality of optical path folding method. Therefore, for the problem that it was difficult to establish the detection reference of the length of more than 50 m, a new rangefinder detection method tracing back to the total station was proposed. A highly operable detection device was designed to carry out the detection experiment of the hand-held laser rangefinder signaling error in the measurement section of 50 m-200 m. The experiments showed that the uncertainty of the range detection method based on the common optical path was 1.6 mm at 200 m, which met the requirements of JJG 966-2010 calibration specification for handheld laser rangefinders. Finally, the reliability of the measurement capability of the detection method was verified by comparison experiments. The research method is the first one in China to extend the measurement range of the measurement standard "Handheld Laser Rangefinder Calibration Device" from 50 m to 200 m under the condition of no baseline field, which has outstanding value of popularization and application.

       

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