商城挎子 发表于 2008-5-30 09:18:25

军用望远镜的测距口诀

军用望远镜中的密位分划可利用"上间隔,下1000,密位、距离摆两边,要想求得那个数,对角相乘除邻边"的公式,即可测方位角、高低夹角和目标距离.
  在右镜筒的玻璃片上,刻有密位分划,
  从十字线交点起,向左、右的为方向分划,向上向下的为高低分划;每个大分划为10密位,小分划为5密位。
  测量前,应先调整焦距和目镜间隔,以便能清晰的看到目标。
  
  (1)测方位角
  用望远镜测方位角,是用它的方向分划进行的。测量时,应将望远镜持平,当所测的两目标在视界范围内时,则以十字线交点或任一方向分划对准其中的目标,再数出至另一目标间的密位数,即为该两目标的方向角。
  (2)测高低夹角
  用望远镜测高低夹角,是用它的高低分划进行的,其要领与测量方向角相同。
  (3)测距离
  用望远镜测距离,实际上是用镜内分划测出已知间隔(或高度)的目标的两端(或上、下)所夹的方向角(或高低夹角)后,根据密位公式计算出距离。(目标间隔乘以1000再除以密位数即为距离)
  
  
  第二种计算方法:
  
  间隔下来加一横,角度、距离横下乘,若想求得哪一个,用手遮住自然成。
  即:间隔/(角度x距离)=1
  间隔的单位是:米
  角度的单位是:密位
  距离的单位是:公里
  需注意的是,这只能得出一个大概的数值,并不太准确!
  
  举例:
  在望远镜中发现前方有一个站立的人,我们知道人的普遍身高为1.70米,用望远镜(或其仪器)测得人身高的角度是2个密位,则利用公式:1.7/2=0.85(公里)。即从你到那个人的直线距离约为0.85公里。

摩步营长 发表于 2008-6-2 09:00:33

:victory: :victory: :victory:

无锡750 发表于 2008-6-3 19:46:43

怎么这么多好文章啊 !!要顶的 !

颠峰岁月 发表于 2008-6-7 10:54:49

:victory: :victory:

老水 发表于 2008-12-16 14:42:13

值得学习!:victory: :victory: :victory:

战士情人 发表于 2008-12-16 15:18:28

学习学习:victory: :victory:

无锡750 发表于 2008-12-16 21:54:58

:victory: :victory: :victory:

累哦累哦累 发表于 2008-12-18 10:30:59

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