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。 :victory: :victory: :victory: 怎么这么多好文章啊 !!要顶的 ! :victory: :victory: 值得学习!:victory: :victory: :victory: 学习学习:victory: :victory: :victory: :victory: :victory: ...........o8:::::::::888::顶88888888888888888888888.
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