【摘要】 介绍了能见度仪对检测激光测距能力的影响,分析了能见度与测距能力之间关系。用常用的方法计算测距能力与实际检测的测距能力相差较大,原因可能是大气衰减系数造成。大气衰减系数与能见度密切相关,它的确定有多种方法,通过比较得出,用经验值法和能见度仪原理法得到的大气衰减系数偏大,测距能力偏高,与实际检测结果相差较大。用能见度仪检测能见度,用经验公式计算大气衰减系数,得到的测距能力与实际检测较为接近。更多还原

【Abstract】 This passage introduces the influences of visibility meter to the laser ranging ability,analyzing the relationship of the visibility meter and the laser ranging ability.There are kinds of differences between the outcome which is based on some commonly used methods of calculating the ranging ability and the actual examination.The main reason may be caused by atmosphere coefficient of attenuation.Since the relationship of atmosphere coefficient of attenuation and visibility meter is closed.Well,there are many ways to get atmosphere coefficient of attenuation.Getting it from Empirical value or by comparision and using the principle of the visibility meter are good examples.However,what makes the differences with the actual examination is the last two ways,which lead to the data of atmosphere coefficient of attenuation is bigger and the result of the ranging ability is higher.Using the visibility meter to get the visibility data and the atmosphere coefficient of attenuation formula to have the atmosphere coefficient of attenuation are much closed at actual examination.更多还原