| Summary: | 碩士 === 清雲科技大學 === 電子工程研究所 === 95 === This research used the optical frustrated total internal reflection by the coupling of prisms to excite surface plasma waves to measure the resonant angle of the chlorine and Halogen-methane (including the fluoromethane, chloromethane, bromomethane, and iodomethane). During the process of this research, the Otto configuration and KR configuration are used to proceed the special analysis on the chlorine and Halogen-methane, and through the simulative experimental investigation into the tiny variation of dielectric constants of Halogen gas, the resonant angle and depth of absorption of the to-be-investigated gas can be accurately measured. Thus, this optical measuring system can be confirmed with high sensitivity. The measurement of the resonant angle and findings of gas gap or metal film are expected to practically apply to the industrial safety investigation into harmful gas channels in the future. Through the protection of the investigating system, the warning information can be given in time, the labor’s safety in the work place can be ensured, and the occurrence of work accidents can be prevented.
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