公开(公告)号：WO2015057784A1

公开(公告)日：2015-04-23

申请号：PCT/US2014/060611

申请日：2014-10-15

Applicant: TSI, INC.

Inventor： QUANT, Frederick ,  FARMER, Kenneth R. ,  TAN, Phillip V. ,  STIPE, Christopher B. ,  BUCKLEY, Steven G. ,  STOCKINGER, Erik ,  JENSEN, Daniel

IPC: G01N21/71

CPC classification number: G01N21/718 ,  G01J3/0221 ,  G01J3/0272 ,  G01J3/0291 ,  G01J3/18 ,  G01J3/443 ,  G01J2003/1861 ,  G01N2201/0221 ,  G01N2201/0697

Abstract: A novel device, method and systems disclosed managing the thermal challenges of LIBS laser components and a spectrometer in a handheld structure as well the use of simplified light signal collection which includes a bare fiber optic to collect the emitted light in close proximity to (or in contact with) the test material. In one example embodiment of the handheld LIBS device, a burst pulse frequency is 4 kHz is used resulting in a time between pulses of about 250µs which is a factor of 10 above that of other devices in the prior art. In a related embodiment, an active Q-switched laser module is used along with a compact spectrometer module using a transmission grating to improve LIBS measurement while substantially reducing the size of the handheld analyzer.

Abstract translation: 公开了一种新颖的装置，方法和系统，其管理LIBS激光组件和光谱仪在手持式结构中的热挑战，以及使用简化的光信号采集，其包括裸光纤以收集靠近（或 接触）测试材料。 在手持式LIBS装置的一个示例性实施例中，突发脉冲频率为4kHz，导致约250μs的脉冲之间的时间，这是现有技术中其他装置的10倍。 在相关实施例中，使用有源Q开关激光模块以及使用传输光栅的紧凑型光谱仪模块来改善LIBS测量，同时显着减小手持式分析仪的尺寸。