公开(公告)号：EP3359934A1

公开(公告)日：2018-08-15

申请号：EP16785292.0

申请日：2016-10-06

Applicant: Honeywell International Inc.

Inventor： YANG, Wei ,  MARTA, Teresa M. ,  WILLETT, Martin ,  WATTS, Rodney R.

IPC: G01J5/42 ,  G01N21/37 ,  G01N21/17

CPC classification number: G01N21/1702 ,  G01J5/02 ,  G01J5/42 ,  G01N21/61 ,  G01N33/0027 ,  G01N2021/1704 ,  G01N2201/067 ,  G01N2201/068 ,  G01N2201/12

Abstract: Gas detector devices, systems, and methods using a Golay cell are described herein. One device includes a microphone having a front surface with an sound collecting aperture for receiving sound, a substrate, a gas cavity formed in the substrate such that the gas cavity is in gas communication with the sound collecting aperture and the front surface forms a side surface of the gas cavity, and a window abutting the substrate to form a side surface of the gas cavity.

公开(公告)号：EP3201605A4

公开(公告)日：2018-05-02

申请号：EP15845765

申请日：2015-09-30

Applicant: LI COR INC

Inventor： KOULIKOV SERGUEI

IPC: G01N21/39 ,  G01N21/17

CPC classification number: G01N21/39 ,  G01N2021/1704 ,  G01N2021/399 ,  G01N2201/0642 ,  G02B5/205 ,  G02B5/3066 ,  H01S3/081 ,  H01S5/0014 ,  H01S5/0078

Abstract: Laser-based spectroscopy systems and methods including a laser source that emits a beam of radiation, an optical resonant cavity having at least two cavity mirrors, and at least one beam filtering element positioned along a path of the beam external to the cavity and having a front surface, wherein the front surface is oriented such that an intersection of the beam and the surface is at an angle, such as the Brewster's angle or a pseudo-Brewster's, that reduces or eliminates reflection of a predominant polarization component of the beam by the filtering element.

公开(公告)号：EP3099896A4

公开(公告)日：2017-12-06

申请号：EP14881279

申请日：2014-12-11

Applicant: SERVICES PÉTROLIERS SCHLUMBERGER ,  SCHLUMBERGER HOLDINGS ,  SCHLUMBERGER TECHNOLOGY BV

Inventor： SPECK ANDREW J ,  POMERANTZ ANDREW E ,  MULLINS OLIVER C

IPC: G01N21/17 ,  E21B49/08

CPC classification number: G01N21/1702 ,  G01N2021/1704 ,  G01N2021/1708 ,  G01N2201/06113 ,  G01N2201/0697 ,  G02F1/39

Abstract: A method for downhole fluid analysis by optical spectroscopy with photoacoustic detection includes positioning a photoacoustic system within a wellbore, applying a laser pulse to the fluid sample using the pulsed laser system, detecting, by the acoustic sensor, a time-resolved acoustic pulse generated by absorption of the laser pulse by the fluid sample, and determining a property of the fluid sample using the detected time resolved acoustic pulse. The photoacoustic system includes a pulsed laser system and an acoustic sensor.

公开(公告)号：EP2167954B1

公开(公告)日：2017-11-01

申请号：EP08793881.7

申请日：2008-07-16

Applicant: GasSecure AS

Inventor： MOE, Sigurd, T. ,  ØSTBØ, Niels Peter ,  SANDVEN, Knut ,  SAGBERG, Håkon

IPC: G01N33/00 ,  G08B21/16 ,  G01N21/17 ,  G01N21/3504

CPC classification number: G01N33/0032 ,  G01N21/3504 ,  G01N2021/1704 ,  G08B21/16

公开(公告)号：EP3159673A1

公开(公告)日：2017-04-26

申请号：EP16185003.7

申请日：2016-08-19

Applicant: General Electric Company

Inventor： KAVOORI SETHUMADHAVAN, Nagapriya ,  ROBINSON, David Peter ,  PALANGANDA POONACHA, Samhitha

IPC: G01N21/3504

CPC classification number: G01N21/255 ,  G01N21/27 ,  G01N21/31 ,  G01N21/3504 ,  G01N2021/1704 ,  G01N2021/3174 ,  G01N2021/3177 ,  G01N2201/061 ,  G01N2201/068

Abstract: A gas analysis system and method filter different wavelengths of incident light using a variable light filter (104) at different locations along a length of the variable light filter (104) to form filtered light. The variable light filter (104) is configured to be disposed between a light source (102) generating plural different wavelengths of the incident light and a gas sample (106). Intensities of wavelengths of the filtered light are determined after the incident light generated by the light source (102) passes through the variable light filter (104) and the gas sample (106). The gas sample (106) may be identified from among different potential gasses based on the intensity of the one or more wavelengths of the filtered light that is determined by the light detector (108).

Abstract translation: 气体分析系统和方法使用可变滤光器（104）在不同位置处沿着可变滤光器（104）的长度对不同波长的入射光进行滤光，以形成滤光。 可变光滤波器（104）被配置为设置在产生多个不同波长的入射光的光源（102）和气体样本（106）之间。 在由光源（102）产生的入射光通过可变光滤光器（104）和气体样品（106）之后，确定经过滤光的波长的强度。 可以基于由光检测器（108）确定的经滤光的一个或多个波长的强度，从不同的潜在气体中识别气体样品（106）。

公开(公告)号：EP2132561B1

公开(公告)日：2016-11-30

申请号：EP08734814.0

申请日：2008-03-27

Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

Inventor： MIKLOS, Andras ,  ANGSTER, Judit

IPC: G01N29/24 ,  G01N15/02 ,  G01N29/22 ,  G01N21/17

CPC classification number: G01N29/2425 ,  F01N2560/05 ,  G01N21/1702 ,  G01N29/228 ,  G01N2015/0046 ,  G01N2021/1704 ,  G01N2291/0217 ,  G01N2291/02408 ,  G01N2291/02809 ,  G01N2291/045

公开(公告)号：EP2315001B1

公开(公告)日：2016-08-03

申请号：EP10290549.4

申请日：2010-10-13

Applicant: Commissariat à l'Énergie Atomique et aux Énergies Alternatives

Inventor： Gidon, Serge ,  Chaton, Patrick ,  Nicoletti, Sergio

IPC: G01N21/17

CPC classification number: G01N21/1702 ,  G01N2021/1704

公开(公告)号：EP3012616A1

公开(公告)日：2016-04-27

申请号：EP14290322.8

申请日：2014-10-22

Applicant: Services Petroliers Schlumberger ,  SAS AEROVIA ,  Schlumberger Holdings Limited ,  Schlumberger Technology B.V.

Inventor： Breviere, Jerôme ,  Colin, Lionel

IPC: G01N21/17 ,  G01N33/28 ,  E21B49/00

CPC classification number: E21B49/08 ,  E21B49/005 ,  G01N21/1702 ,  G01N33/0006 ,  G01N33/2841 ,  G01N2021/1704 ,  G01N2201/069

Abstract: The disclosure relates to a system and method for analyzing a gaseous sample extracted from a drilling fluid coming from a wellbore. The system comprises a surface assembly, situated outside of the wellbore and including :
- an extractor for extracting a gaseous sample from the drilling fluid,
- a quantification device connected to the extractor for quantifying at least a gaseous constituent contained the gaseous sample.
The quantification device comprises at least a photoacoustic cell in fluid communication with the extractor, at least a light source for emitting a light beam at a predetermined emission spectrum in the photoacoustic cell, at least an acoustic detector positioned in the photoacoustic cell and a processor for calculating a parameter relative to the quantity of the gaseous constituent on the basis of a signal obtained from the detector.

Abstract translation: 本发明涉及一种用于分析从从井筒未来钻井流体中提取的气体样品的系统和方法。 该系统包括一个面组件，位于所述井眼并包括外： - 在提取器，用于从所述钻探流体，提取气体样品 - 连接至所述提取器为至少定量气体成分的量化装置包含气体样品。 量化装置至少包括流体连通的提取器的光声细胞，至少，用于在光声单元的预定发射光谱发射光束的光源，租赁在上在光声细胞定位声学检测器以及处理器，用于 计算相对于所述气体成分的量从所述检测器获得的信号的基础上的参数。

公开(公告)号：EP2097955B1

公开(公告)日：2016-03-30

申请号：EP07873659.2

申请日：2007-12-05

Applicant: President and Fellows of Harvard College

Inventor： BELKIN, Mikhail, A. ,  LEE, Benjamin, G. ,  AUDET, Ross, M. ,  MACARTHUR, James, B ,  DIEHL, Laurent ,  CAPASSO, Federico ,  PFLÜGL, Christian

IPC: H01S5/34 ,  H01S3/10 ,  B82Y20/00 ,  G01N21/17 ,  G01N21/39 ,  H01S5/06 ,  H01S5/12 ,  H01S5/40

CPC classification number: H01S5/4031 ,  B82Y20/00 ,  G01N21/1702 ,  G01N21/39 ,  G01N2021/1704 ,  G01N2021/399 ,  H01S5/0612 ,  H01S5/12 ,  H01S5/3401 ,  H01S5/4087

公开(公告)号：EP2954311A1

公开(公告)日：2015-12-16

申请号：EP14707340.7

申请日：2014-02-04

Applicant: Blue Industry and Science

Inventor： MIKLOS, Andras ,  COLIN, Alexis ,  NGUYEN, Joël ,  CAMPREDON, Thibaut

IPC: G01N21/17 ,  G01N29/24

CPC classification number: G01N21/1702 ,  G01N21/031 ,  G01N29/2425 ,  G01N2021/1704 ,  G01N2291/021

Abstract: The present invention concerns a photo-acoustic cell (1), comprising: an acoustic resonator (2), said resonator comprising a resonator recess (3) in the form of a tube extending in a longitudinal detection (4); an input mirror (8) and an end mirror (10) aligned with the resonator (2) along an optical axis (5) of the cell parallel to the longitudinal direction (4); between the input mirror and the resonator, an input acoustic buffer (13); and between the end mirror and the resonator, an end acoustic buffer (14). According to a first aspect of the cell according to the invention, the lengths (63, 64) of the input and end acoustic buffers, measured in the longitudinal direction, are preferably asymmetrical. According to a second aspect of the cell according to the invention, the input mirror and the end mirror are preferably arranged to reflect a light beam (15) entering the cell through the input window (9) in the longitudinal direction, being centred on the optical axis, such that after each reflection on each of these mirrors, the reflected light beam remains centred on the optical axis (5). The invention also concerns a gas analyser comprising a cell according to the invention.