公开(公告)号：US09719857B2

公开(公告)日：2017-08-01

申请号：US14587502

申请日：2014-12-31

Applicant: THERMO SCIENTIFIC PORTABLE ANALYTICAL INSTRUMENTS INC.

Inventor： Peidong Wang ,  Haowen Li ,  Rong Sun ,  Michael Bush

IPC: G01J3/30 ,  G01J3/443 ,  G01J3/02 ,  G01N21/15 ,  G01N21/71

CPC classification number: G01J3/443 ,  G01J3/0208 ,  G01J3/0262 ,  G01N21/15 ,  G01N21/718

Abstract: Methods and apparatus for laser induced breakdown spectroscopy (LIBS) sample chamber. An apparatus includes a sample chamber, a laser source connected to an excitation optics assembly, the excitation optics assembly connected to a first port on the sample chamber, a collimator assembly connected to a spectrometer, the collimator assembly connected to a second port on the sample chamber, and a first lens tube positioned on the first port and a second lens tube positioned on the second port, the first lens tube protecting the first port connected to the excitation optics assembly and the second lens tube protecting the second port connected to the collimator assembly from particles emitted when a laser pulse from the laser source ablates a surface of a target sample and generates a plasma.

公开(公告)号：US20160187201A1

公开(公告)日：2016-06-30

申请号：US14587502

申请日：2014-12-31

Applicant: THERMO SCIENTIFIC PORTABLE ANALYTICAL INSTRUMENTS INC.

Inventor： Peidong Wang ,  Haowen Li ,  Rong Sun ,  Michael Bush

IPC: G01J3/443 ,  G01J3/02

CPC classification number: G01J3/443 ,  G01J3/0208 ,  G01J3/0262 ,  G01N21/15 ,  G01N21/718

Abstract: Methods and apparatus for laser induced breakdown spectroscopy (LIBS) sample chamber. An apparatus includes a sample chamber, a laser source connected to an excitation optics assembly, the excitation optics assembly connected to a first port on the sample chamber, a collimator assembly connected to a spectrometer, the collimator assembly connected to a second port on the sample chamber, and a first lens tube positioned on the first port and a second lens tube positioned on the second port, the first lens tube protecting the first port connected to the excitation optics assembly and the second lens tube protecting the second port connected to the collimator assembly from particles emitted when a laser pulse from the laser source ablates a surface of a target sample and generates a plasma.

Abstract translation: 激光诱导击穿光谱（LIBS）样品室的方法和装置。 一种装置包括样品室，连接到激发光学组件的激光源，连接到样品室上的第一端口的激发光学组件，连接到光谱仪的准直器组件，连接到样品上的第二端口的准直器组件 以及位于所述第一端口上的第一透镜管和位于所述第二端口上的第二透镜管，所述第一透镜套管保护连接到所述激发光学组件的所述第一端口，所述第二透镜套管保护连接到所述准直器的所述第二端口 当来自激光源的激光脉冲消除靶样品的表面并产生等离子体时发射的颗粒的组装。

公开(公告)号：US10718716B2

公开(公告)日：2020-07-21

申请号：US16421888

申请日：2019-05-24

Applicant: THERMO SCIENTIFIC PORTABLE ANALYTICAL INSTRUMENTS INC.

Inventor： Peidong Wang ,  Rong Sun ,  Brendan Falvey ,  Haowen Li ,  Yu Shen ,  Michael E. Dugas

IPC: G01N21/71 ,  G01J3/02 ,  G01J3/10 ,  G01J3/443

Abstract: An embodiment of a laser induced breakdown system is described that comprises a portable device that includes: a laser configured to produce a beam comprising a plurality of repeating pulses; a processor configured to open a data acquisition window after a delay period, wherein the delay period begins upon production of one of the pulses; one or more optical elements configured to direct the beam at a sample and collect emitted light from a plasma continuum; and an optical detector configured to produce a plurality of signal values from the emitted light from the plasma continuum collected during the data acquisition window, wherein the processor is configured to identify an element from the signal values.