Design and Development of a Miniature Digital Delay Generator for Laser-Induced Breakdown Spectroscopy

作者：Ding, Yu; Tian, Di; Li, Chunsheng; Duan, Yixiang; Yang, Guang^*

来源：Instrumentation Science & Technology, 2015, 43(1): 115-124.

DOI：10.1080/10739149.2014.940534

• LIBS
• miniature
• time-resolved
• delay generator
• laser induced breakdown spectroscopy

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 0.1ns 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.

• 出版日期2015-1-2
• 单位吉林大学