Design and Development of a Miniature Digital Delay Generator for Laser-Induced Breakdown Spectroscopy |
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| Authors: | Yu Ding Di Tian Chunsheng Li Yixiang Duan |
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| Affiliation: | 1. College of Instrumentation and Electrical Engineering, Jilin University, Changchun, China;2. Research Center of Analytical Instrumentation, Sichuan University, Chengdu, China |
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| Abstract: | Laser-induced breakdown spectroscopy (LIBS) is widely used for atomic emission spectroscopy. The delay time is a significant factor that affects the selection of the optimal plasma conditions. In this study, a miniature digital delay generator was designed and built for time-resolved LIBS with a widely adjustable time delay with 0.1 ns resolution. Experimental observations were used to examine and perform a diagnosis study of the delay time accuracy and a series of time-resolved LIBS spectra with satisfactory signal-to-noise ratios were obtained. Therefore, this delay generator is suitable for replacing the widely used delay generators in LIBS instrumentation and may have widespread application in portable instrumentation. |
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| Keywords: | delay generator laser induced breakdown spectroscopy LIBS miniature time-resolved |
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