ACADEMY OF OPTO-ELECTRONICS, CHINESE ACADEMY OF SCIENCES
发明人:
SUN, Hui,FAN, Zhongwei
申请号：
WO2016CN101742
公开号：
WO2018035937(A1)
申请日:
2016.10.11
申请国别(地区):
世界知识产权组织国际局
年份:
2018
代理人:
摘要：
A method for detecting the composition of a steel sample by using a multi-pulse laser-induced plasma spectrometer, and in particular, a method for detecting the composition of a steel sample by using a multi-pulse laser-induced plasma spectrometer comprising picosecond and nanosecond laser pulse widths; a laser-induced light source (10) is a laser light source comprising nanosecond and picosecond ultrashort pulses, and is capable of generating two pulsed lasers, nanosecond laser and picosecond laser, by using one pulsed laser generator; by means of same outputting and focusing optical paths, the two pulsed lasers are focused on a same position on a sample to be tested, thus applying a first beam of nanosecond laser pulse onto a surface of the sample to generate a plasma, and later applying a second beam of picosecond laser pulse on the plasma to enhance spectral emission.
