公开(公告)号：US11965418B2

公开(公告)日：2024-04-23

申请号：US17550556

申请日：2021-12-14

Applicant: Halliburton Energy Services, Inc.

Inventor： Mathew Dennis Rowe

IPC: G01J3/02 ,  E21B49/00 ,  G01J3/443 ,  G01N21/03 ,  G01N21/67

CPC classification number: E21B49/003 ,  E21B49/00 ,  G01J3/0205 ,  G01J3/027 ,  G01J3/443 ,  G01N21/0303 ,  G01N21/67

Abstract: A system includes a discharge tool positioned within a wellbore and configured to generate an electrical discharge that interacts with a rock formation proximate to the discharge tool, wherein the interaction of the electrical discharge with the rock formation vaporizes a portion of the rock formation to generate a discharge plasma. The system further includes an optical emission spectroscopy (OES) sub-system configured to determine an elemental composition of the portion of the rock formation based on optical emission generated by the discharge plasma, wherein at least a portion of the OES sub-system is positioned within the wellbore.

公开(公告)号：US11868147B2

公开(公告)日：2024-01-09

申请号：US17198619

申请日：2021-03-11

Applicant: Applied Materials, Inc.

Inventor： Philip DiGiacomo ,  Sunil Kumar Garg ,  Paul G. Kiely ,  Keith A. Miller ,  Rajat Agrawal

IPC: G05D11/13 ,  G05B15/02 ,  G01N21/67

CPC classification number: G05D11/138 ,  G01N21/67 ,  G05B15/02

Abstract: A system may be configured to monitor an amount of a gas species in a processing chamber using Optical Emission Spectrometry. The gas measurement may be provided as feedback to a control process that generates a target setpoint for a gas flow controller into the process chamber. This real-time process may increase/decrease the flow rate of the gas in order to maintain a process deposition mode within a transition region between primarily metallic deposition and primarily compound deposition.

公开(公告)号：US20230349832A1

公开(公告)日：2023-11-02

申请号：US18308138

申请日：2023-04-27

Applicant: HORIBA FRANCE SAS

Inventor： Patrick CHAPON

IPC: G01N21/68 ,  G01B11/22 ,  G01N21/67

CPC classification number: G01N21/68 ,  G01B11/22 ,  G01N21/67 ,  G01N2201/0634 ,  G01N2201/0635

Abstract: Disclosed is a glow discharge spectrometry device including a glow discharge lamp and an optical emission spectrometer adapted to receive a light beam emitted by a glow discharge plasma. The optical emission spectrometer includes a dispersive optical component and an echelle grating arranged and configured in such a way as to form a two-dimensional spectrum of the light beam, the two-dimensional spectrum being dispersed in a plurality of diffraction orders, the plurality of diffraction orders extending along a first direction and each diffraction order extending spectrally according to a second direction transverse to the first direction and a pixel-array CMOS sensor arranged and configured to acquire the two-dimensional spectrum as a function of time.

公开(公告)号：US11474042B2

公开(公告)日：2022-10-18

申请号：US16326595

申请日：2017-08-31

Applicant: Agnes Obuchowska

Inventor： Agnes Obuchowska

IPC: G01N21/67 ,  G01N21/69 ,  H01J49/04 ,  H01J49/12 ,  G01N1/14

Abstract: A device and method is described for analysing the elemental composition of a liquid sample utilizing a combination of electrochemical pre-concentration followed by spectrochemical analysis of analytes in a single device. The device consists of two electrodes for the purpose of pre-concentration of the analyte ions by electrodeposition, a DC power supply/potentiostat/galvanostat, a high voltage power supply capable of creating an electrical discharge such as arc, spark, glow discharge or plasma, a spectrometer capable of recording a spectrum generated during such discharges as well as a pump(s) for pumping the analyte containing solution. Such a device is autonomous, field-deployable and capable of providing online analysis.

公开(公告)号：US11143595B2

公开(公告)日：2021-10-12

申请号：US16390513

申请日：2019-04-22

Applicant: ARKRAY, Inc.

Inventor： Tsuyoshi Takasu ,  Kojiro Honma

IPC: G01N21/67 ,  G01N21/66 ,  G01N21/69 ,  G01N33/493

Abstract: A plasma spectroscopy analysis method includes a preliminary addition process in which a bonding agent that is an agent other than DMSA is added to the specimen collected from a living body to which meso-2,3-dimercaptosuccinic acid (DMSA) is administered, a concentration process in which the analyte heavy metal ions in the specimen at a vicinity of one of a pair of electrodes by applying a voltage to the pair of electrodes, and a detection process in which plasma is generated by applying a voltage to the pair of electrodes, and luminescence of the analyte metal ions caused by the plasma is detected.

公开(公告)号：US20210285820A1

公开(公告)日：2021-09-16

申请号：US17048081

申请日：2019-05-02

Applicant: Elementar Analysensysteme GmbH

Inventor： Hans DOMINICK ,  Michael MOLDERINGS

IPC: G01J3/443 ,  G01J3/02 ,  G01J3/10 ,  G01N21/67

Abstract: The invention relates to an optical emission spectrometer with a spark chamber (10) which comprises a spark stand opening (14) and an oblong electrode (11) being arranged inside thereof for generating a spark and a beam of light originating therefrom. Furthermore, a coupling unit (20) is provided which comprises at least one window being arranged on a window holder and a channel. The spark chamber (10) and the coupling unit (20) are arranged with respect to each other such that the beam of light falls through the window (30) into the channel (21). In addition, the spark chamber (10) and the coupling unit (20) comprise means for purging with an inert gas.
The spark chamber (10) is directly connected with a window holder (31) and via the window holder (31) with the coupling unit (20), wherein between spark chamber (10) and window holder (31) a sealing element (33) is provided. The coupling unit (20) comprises at least one elastic means which is arranged such that it presses the window holder (31) against the spark chamber (10).

公开(公告)号：US20210131971A1

公开(公告)日：2021-05-06

申请号：US16326595

申请日：2017-08-31

Applicant: Agnes OBUCHOWSKA

Inventor： Agnes OBUCHOWSKA

IPC: G01N21/67 ,  G01N21/69 ,  H01J49/04 ,  H01J49/12 ,  G01N1/14

Abstract: A device and method is described for analysing the elemental composition of a liquid sample utilizing a combination of electrochemical pre-concentration followed by spectrochemical analysis of analytes in a single device. The device consists of two electrodes for the purpose of pre-concentration of the analyte ions by electrodeposition, a DC power supply/potentiostat/galvanostat, a high voltage power supply capable of creating an electrical discharge such as arc, spark, glow discharge or plasma, a spectrometer capable of recording a spectrum generated during such discharges as well as a pump(s) for pumping the analyte containing solution. Such a device is autonomous, field-deployable and capable of providing online analysis.

公开(公告)号：US20210109026A1

公开(公告)日：2021-04-15

申请号：US16600363

申请日：2019-10-11

Applicant: Battelle Memorial Institute ,  Clemson University ,  GAA Custom Engineering, LLC

Inventor： David W. Koppenaal ,  Ying Zhu ,  Edward D. Hoegg ,  R. Kenneth Marcus ,  Gordon A. Anderson ,  Chris Anderson ,  Tyler Williams

IPC: G01N21/67 ,  H01J49/10

Abstract: Apparatus include an atmospheric pressure glow discharge (APGD) analyte electrode defining an analyte discharge axis into an APGD volume, and a plurality of APGD counter electrodes having respective electrical discharge ends directed to the APGD volume, wherein the APGD analyte electrode and the APGD counter electrodes are configured to produce an APGD plasma in the APGD volume with a voltage difference between the APGD analyte electrode and one or more of the AGPD counter electrodes. An electrode can be integrated into an ion inlet. Apparatus can be configured to perform auto-ignition and/or provide multi-modal operation through selectively powering electrodes. Electrode holder devices are disclosed. Related methods are disclosed.

公开(公告)号：US10962483B2

公开(公告)日：2021-03-30

申请号：US16151034

申请日：2018-10-03

Applicant: InnoTech Alberta Inc.

Inventor： Stuart Garth Schroeder ,  Wade Joseph Hagman

IPC: G01N21/67 ,  G01N27/62 ,  H05H1/48 ,  G01N33/50 ,  G01N21/69

Abstract: A device and method to reduce molecular background emission and to increase matrix management in solution cathode glow discharge (SCGD). A purging device for purging atmospheric gases from a solution cathode glow discharge (SCGD) apparatus, comprising a hollow body that encloses a plasma generated between a solid anode and a solution cathode, wherein the body comprises at least one opening for release of water vapor generated by the plasma. A method for reducing matrix interferences from a SCGD comprising introducing an internal standard into a sample to be analyzed, wherein the sample comprises at least one element of interest; determining a spatial emission profile of the internal standard; using linear correlation between the spatial emission profile of the internal standard and the element of interest to predict a crossover point; and using the crossover point of the element of interest to select a vertical acquisition height for SCGD analysis.

公开(公告)号：US10830705B2

公开(公告)日：2020-11-10

申请号：US16626898

申请日：2018-06-29

Applicant: Aleksandr Nikolaevich Zabrodin ,  Sergei Aleksandrovich Zabrodin

Inventor： Aleksandr Nikolaevich Zabrodin ,  Sergei Aleksandrovich Zabrodin

IPC: G01J3/28 ,  G01N21/69 ,  G01J3/02 ,  G01J3/443 ,  G01N21/67 ,  G01N21/71 ,  G01N21/85

Abstract: The invention relates to the field of spectral analysis of the chemical composition of ferrous and non-ferrous metals and can be used in metallurgical factories to monitor the ongoing production of molten (liquid) electrically conductive materials directly in the melting units.A method for optical emission spectral analysis of the chemical composition of an electrically conductive metal melt includes the following steps: immersion of a refractory probe with a sampler into a container with a metal melt at an angle to its surface, ingress of the metal melt into the sampler due to the ferrostatic pressure and stabilization of its level due to an inert gas flow, excitation of plasma torch using electric spark from an electrode located inside the sampler, transfer of the plasma glow through the optical channel to the input of the spectrometer, receiving a spectrum of the chemical elements in the metal, processing this spectrum in the computer to evaluate composition and the mass fraction of the chemical elements in the melt, wherein when measuring the level of the liquid sample in the sampler is stabilized and maintained at the level of the lateral opening in the wall of the sampler due to the flow of inert gas, which is continuously fed into the probe and comes out as bubbles through the hole directly into the melt medium. The technical effect: increase in sensitivity and accuracy of spectral analysis of electrically conductive melts, increase in reliability and simplification of the device for plasma excitation.