DIN EN ISO 11146-2:2005
激光和激光相关设备.激光束宽度、发散角和束扩散率的试验方法.第2部分:一般象散束

Lasers and laser-related equipment - Test methods for laser beam widths, divergence angles and beam propagation ratios - Part 2: General astigmatic beams (ISO 11146-2:2005); German version EN ISO 11146-2:2005

被代替

标准号

DIN EN ISO 11146-2:2005

发布

2005年

发布单位

德国标准化学会

替代标准

DIN EN ISO 11146-2:2021

当前最新

DIN EN ISO 11146-2:2021

DIN EN ISO 11146-2:2020

 

 

被代替标准

DIN EN ISO 11146-2:2004

适用范围

This part of ISO 11146 specifies methods for measuring beam widths (diameter), divergence angles and beam propagation ratios of laser beams. This part of ISO 11146 is applicable to general astigmatic beams or unknown types of beam. For stigmatic and simple astigmatic beams, ISO 11146-1 is applicable. Within this part of ISO 11146 the description of laser beams is accomplished by means of the second order moments of the Wigner distribution rather than physical quantities such as beam widths and divergence angles. However these physical quantities are closely related to the second order moments of the Wigner distribution. In ISO/TR 11146-3, formulae are given to calculate all relevant physical quantities from the measured second order moments.#,,#

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