Design, characterization and control of heat generation of an online Laser-Induced Breakdown Spectroscopy (LIBS) sorting process analyzer

激光诱导击穿光谱(LIBS)仪器设计用于确定 任何类型的材料(如气体、液体或固体)的样品都具有非常高的准确度。从根本上说，自由党 系统使用高功率脉冲激光束与物质相互作用并产生等离子体。这些分析 它的散射光，通过复杂的光学装置，允许识别几乎所有的元素 要实现元素周期表。这项技术最近在NASA的应用中取得了巨大的成功 好奇号火星漫游者，从土壤样本中收集的指纹能够充分描述 地球上的矿物质含量。最近，我们的工业合作伙伴开发了一个LIBS系统，该系统将 用于金属制造业。为此，该仪器必须能够长期稳定运行 在非常恶劣的环境条件下(即温度从-10摄氏度到50摄氏度变化)的时间段 摄氏度、机械振动、尘埃等)特别是，这个LIBS系统必须能够维护其 温度在很小的范围内。目前，在工业中，类似的仪器都是用水冷却的。 流经热交换器，其中一个微小的泄漏可能会导致无法忍受的光学漂移。因此， 本项目的目的是开发一种适当的技术，使系统能够保持其 通过取消使用冷却剂来降低温度，因为这可能会引发潜在的危险。一旦提议的 解决方案将全面投入使用，预计我们的结果将帮助公司制造 商业单位，从而为加拿大高科技的发展做出贡献 仪器仪表行业。

Laser-Induced Breakdown Spectroscopy (LIBS) instruments are designed to determine the composition of samples of any sort of materials (e.g. gas, liquid or solid) with a very high accuracy. Fundamentally, LIBS systems use a high-power pulsed laser beam that interacts with the matter and generates a plasma. The analyses of its scattered light, via a complex optical arrangement, permit the identification of almost all elements of the periodic table to be achieved. This technology has recently shown a great success with NASA's application in the Curiosity Mars Rover, where the fingerprints collected from a soil sample has enabled to fully characterize the mineral content of the planet. Recently, our industrial partner has developed a LIBS system that will be used in the metal manufacturing industry. To this aim, such instrument must be able to operate stably for long periods of time under very harsh environmental conditions (i.e. temperature variations from -10 C to 50 degree Celsius, mechanical vibrations, dust, etc.) In particular, this LIBS system must be able to maintain its temperature within a very small range. Currently, in the industry similar instruments are cooled using water flows through heat exchangers, where a minor leak can bring about intolerable optical drifts. Therefore, the purpose of the present Engage is to develop an appropriate technique that will permit the system to maintain its temperature by eliminating the use of coolants, which may provoke potential risks. Once the proposed solutions will be fully operational, it is expected that our results will help the company to manufacture a commercial unit and consequently contribute towards the development of Canada's high technology instrumentation industry.