逆向反射器常数的调查
R.E.Mclean ,陈明慧
摘要(Abstract):
除微波测距仪外,电子测距仪测定距离的方法,都是量测由逆向棱镜反回的调制载波。测出的值还要作一些改正,而改正数取决于棱镜玻璃表面和中心标志之间的偏距,以及棱镜玻璃厚度与折射率的乘积。通常称改正数为棱镜常数,应从测得的值中减去棱镜常数,并规定它的公差在±1毫米内。但是,对电子测距仪所用三种型号的棱镜进行物理测定后表明,许多棱镜常数已超出公差,需重新确定出与制造有关的新的棱镜常数。
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基金项目(Foundation):
作者(Author): R.E.Mclean ,陈明慧
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