公开(公告)号：JP2010014739A

公开(公告)日：2010-01-21

申请号：JP2009243613

申请日：2009-10-22

Applicant: Trustees Of Princeton Univ ,  トラスティーズ オブ プリンストン ユニバーシティ

Inventor： LEHMANN KEVIN K ,  TARSA PETER B ,  RABINOWITZ PAUL

IPC: G01N21/27 ,  G01N21/39 ,  G01J3/42 ,  G01N21/77

CPC classification number: G01N21/39 ,  G01J3/42 ,  G01N21/552 ,  G01N2021/391 ,  G01N2021/7789

Abstract: PROBLEM TO BE SOLVED: To provide an improved apparatus for detection and measurement of trace species in a gas or a liquid sample. SOLUTION: A sensor of ring down cell formed from an optical fiber is exposed to the sample gas or liquid. A coherent source emits radiation into the optical fiber loop, which is in turn received at an output coupler. The fiber optic ring is coupled to a sensor which has a portion thereof, between the input and output, exposed to the sample gas or sample liquid. The sensor has an extended evanescent region. A processor is coupled to the receiver and determines the level of trace species in the gas or liquid sample based on the rate of decay of the radiation within the fiber optic ring. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供用于气体或液体样品中痕量物质的检测和测量的改进的装置。 解决方案：由光纤形成的环形电池的传感器暴露于样品气体或液体。 相干光源发射辐射到光纤环路，光纤回路又在输出耦合器处接收。 光纤环耦合到传感器，该传感器具有在输入和输出之间暴露于样品气体或样品液体中的一部分。 传感器具有延长的消逝区域。 处理器耦合到接收器，并且基于光纤环内的辐射的衰减速率来确定气体或液体样品中痕量物质的水平。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2011149954A

公开(公告)日：2011-08-04

申请号：JP2011066246

申请日：2011-03-24

Applicant: Trustees Of Princeton Univ ,  トラスティーズ オブ プリンストン ユニバーシティ

Inventor： LEHMANN KEVIN K ,  CHEN YU ,  YAN WEN-BIN

IPC: G01N21/35 ,  G01N33/00

CPC classification number: G01N33/0013 ,  Y10T29/49 ,  Y10T29/49002 ,  Y10T436/11 ,  Y10T436/17 ,  Y10T436/20 ,  Y10T436/206664 ,  Y10T436/207497 ,  Y10T436/208339 ,  Y10T436/209163 ,  Y10T436/21 ,  Y10T436/218 ,  Y10T436/22

Abstract: PROBLEM TO BE SOLVED: To provide an apparatus and method for quantifying impurity in input gas stream. SOLUTION: The device and method employ a catalyst to convert the impurity in the input gas stream 12 into detectable species in the output gas stream 30. After that, the concentration of the detectable species is then measured by a detector 26, thereby achieving high sensitivity in analyzing the impurity in the gas stream. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种量化输入气流中的杂质的装置和方法。 解决方案：该装置和方法采用催化剂将输入气流12中的杂质转化为输出气流30中的可检测物质。此后，可检测物质的浓度然后由检测器26测量，由此 在分析气流中的杂质时获得高灵敏度。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2009031312A

公开(公告)日：2009-02-12

申请号：JP2008287894

申请日：2008-11-10

Applicant: Trustees Of Princeton Univ ,  トラスティーズ オブ プリンストン ユニバーシティ

Inventor： LEHMANN KEVIN K ,  TARSA PETER B ,  RABINOWITZ PAUL

IPC: G01N21/27 ,  G01J3/42 ,  G01N21/39 ,  G01N21/77

CPC classification number: G01N21/39 ,  G01J3/42 ,  G01N21/552 ,  G01N2021/391 ,  G01N2021/7789

Abstract: PROBLEM TO BE SOLVED: To provide an improved apparatus used for detecting and measuring trace species, in either a sample gas or a sample liquid.
SOLUTION: This apparatus is provided with a passive resonance optical fiber ring; at least one sensor arranged in one line with the optical fiber ring, and having a tapered part, exposed to the sample gas or the sample liquid; a coherent radiation source emitting radiation; a first optical coupler for supplying at least a part of the radiation emitted by the coherent radiation source to a first section of the passive resonance fiber ring; and a second optical coupler for receiving a part of the radiation, from a second section of the resonance fiber ring in the passive resonance fiber ring. The level of the trace species in the gas sample or the liquid sample is decided, based on the attenuation rate of the radiation coupled to the second optical coupler and is received by the second optical coupler.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供用于在样品气体或样品液体中检测和测量痕量物质的改进的装置。 解决方案：本设备具有无源谐振光纤环; 至少一个传感器与所述光纤环一条直线布置，并且具有暴露于所述样品气体或样品液体的锥形部分; 发射辐射的相干辐射源; 第一光耦合器，用于将由相干辐射源发射的辐射的至少一部分提供给无源谐振光纤环的第一部分; 以及第二光耦合器，用于从无源谐振光纤环中的谐振光纤环的第二部分接收辐射的一部分。 基于耦合到第二光耦合器的辐射的衰减率并由第二光耦合器接收气体样品或液体样品中痕量物质的水平。 版权所有（C）2009，JPO＆INPIT