Title:
METHOD FOR DETECTING COMPOSITION OF STEEL SAMPLE BY USING MULTI-PULSE LASER-INDUCED PLASMA SPECTROMETER
Document Type and Number:
WIPO Patent Application WO/2018/035937
Kind Code:
A1
Abstract:
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.
Inventors:
SUN HUI (CN)
FAN ZHONGWEI (CN)
FAN ZHONGWEI (CN)
Application Number:
PCT/CN2016/101742
Publication Date:
March 01, 2018
Filing Date:
October 11, 2016
Export Citation:
Assignee:
ACAD OPTO ELECTRONICS CAS (CN)
International Classes:
G01N21/63
Foreign References:
| CN102841075A | 2012-12-26 | |||
| CN102709801A | 2012-10-03 | |||
| US8310671B1 | 2012-11-13 | |||
| CN203385665U | 2014-01-08 | |||
| CN105762633A | 2016-07-13 | |||
| CN104181146A | 2014-12-03 |
Other References:
See also references of EP 3505912A4
Attorney, Agent or Firm:
BEIJING TROHENG INTELLECTUAL PROPERTY LAW FIRM (CN)
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