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）仪器被设计用于确定 任何种类的材料（如气体、液体或固体）的样品，具有非常高的精度。基本上，LIBS 系统使用高功率脉冲激光束，其与物质相互作用并产生等离子体。的分析 它的散射光，通过一个复杂的光学安排，允许识别几乎所有的元素， 周期表要实现。这项技术最近在美国宇航局的应用中取得了巨大成功， 从土壤样本中收集的指纹能够充分表征 地球的矿物含量。最近，我们的工业合作伙伴开发了一种LIBS系统， 用于金属制造业。为了达到这一目的，这种仪器必须能够长期稳定地工作 在非常恶劣的环境条件下（即温度变化从-10 ℃到50 摄氏度、机械振动、灰尘等）特别地，该LIBS系统必须能够维持其 温度在很小的范围内。目前，在工业中，类似的仪器使用水冷却 流经热交换器，在那里，微小的泄漏可能导致无法忍受的光学漂移。因此 本Engage的目的是开发一种适当的技术，使系统能够保持其 通过消除可能引发潜在风险的冷却剂的使用，降低了温度。一旦提议 解决方案将全面投入使用，预计我们的成果将有助于公司制造一个 商业单位，从而促进加拿大的高科技发展 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.