公开(公告)号：WO1993013401A1

公开(公告)日：1993-07-08

申请号：PCT/US1992011350

申请日：1992-12-30

Applicant: GAZTECH INTERNATIONAL CORPORATION

Inventor： GAZTECH INTERNATIONAL CORPORATION ,  WONG, Jacob, Y.

IPC: G01N01/00

CPC classification number: G01N1/2258 ,  G01N21/0332 ,  G01N21/05 ,  G01N21/3504 ,  G01N33/0011 ,  G01N33/0016 ,  G01N33/0031 ,  G01N2001/2261 ,  G01N2021/0321 ,  G01N2021/0385 ,  G01N2021/052 ,  G01N2021/158 ,  G01N2021/8585 ,  G01N2201/0228 ,  G01N2201/066 ,  G08B17/117 ,  G08B29/20

Abstract: A gas sample chamber (10) for use in a gas analyzer consists of an elongated hollow tube (21) having an inwardly-facing specularly-reflective surface (22) that permits the tube to function also as a light pipe for conducting radiation from a source (12) to a detector (14) through the sample gas. A number of apertures (24) in the wall of the elongated hollow tube permit the sample gas to enter and exit. Particles of smoke and dust of a size greater than 0.1 micron are kept out of the chamber by use of a semi-permeable membrane (28) that spans the apertures in the hollow tube. Condensation of the sample gas components is prevented by heating the sample chamber electrically to a temperature above the dew point of the component of concern. In one embodiment, more than one detector (40, 42, 44) are spaced around the periphery of the elongated hollow tube adjacent one end of it. In another embodiment, more than one detector (56, 58, 60) are spaced along the length of the elongated hollow tube.

Abstract translation: 用于气体分析仪的气体样品室（10）由具有向内的镜面反射表面（22）的细长的中空管（21）组成，该中空管（21）允许管也用作用于传导辐射的光管 源（12）通过样品气体传送到检测器（14）。 在细长的中空管的壁中的许多孔（24）允许样品气体进出。 通过使用跨越中空管中的孔的半透膜（28）将尺寸大于0.1微米的烟雾和灰尘颗粒保持在室外。 通过将样品室电加热到高于所关注部件的露点的温度来防止样品气体组分的冷凝。 在一个实施例中，多于一个的检测器（40,42,44）围绕其一端的细长中空管的周边间隔开。 在另一个实施例中，多于一个的检测器（56,58,60）沿着细长的中空管的长度间隔开。

公开(公告)号：EP3305170A1

公开(公告)日：2018-04-11

申请号：EP16192198.6

申请日：2016-10-04

Applicant: ams AG

Inventor： Münzer, Martin

IPC: A61B1/04 ,  G01B11/14 ,  G01S7/486 ,  G01N21/64 ,  A61B5/00

CPC classification number: G01N21/6456 ,  A61B5/0071 ,  G01N21/6408 ,  G01N21/6458 ,  G01N2201/0221 ,  G01N2201/0222 ,  G01N2201/0228 ,  G01N2201/024 ,  G01N2201/0612

Abstract: A sensor module and method for determining and imaging fluorescence lifetime based on the time-of-flight values are disclosed. The sensor module comprises an opaque housing (OH) having a first chamber (CH1) and a second chamber (CH2) which are separated by a non-transparent barrier (LB). Further, it comprises an optical emitter (OE) arranged in the first chamber (CH1) and configured to emit light through a first aperture (AP1). Pulsed excitation light of a specified wavelength is directed to optically excite a fluorescent probe (FP) positioned in the optical path of the excitation light. The module also comprises a detector (MD) arranged in the second chamber (CH2) and configured to detect through a second aperture (AP2) photons originating from the fluorescent probe (FP). The module further comprises: a measurement block (MB) configured to determine a temporal difference between an arrival time of one of the received photons with respect to the emission pulses; a histogram block (HIST) configured to accumulate the difference values in a histogram; a processing circuit (PRC) configured to compute time-of-flight values based on an evaluation of the histogram and then to compute a fluorescence lifetime from the time-of-flight values and generate an output signal (OS) being indicative of the fluorescence lifetime of the fluorescent probe; and a control unit (CU) configured to initiate pulsed emission of the optical emitter (OE).

Abstract translation: 公开了基于飞行时间值确定和成像荧光寿命的传感器模块和方法。 传感器模块包括具有由非透明屏障（LB）分开的第一腔室（CH1）和第二腔室（CH2）的不透明外壳（OH）。 此外，它包括布置在第一腔室（CH1）中并被配置为通过第一孔径（AP1）发射光的光学发射器（OE）。 指定波长的脉冲激发光被引导以光学地激发位于激发光的光路中的荧光探针（FP）。 该模块还包括布置在第二腔室（CH2）中并被配置为通过第二孔径（AP2）检测源自荧光探针（FP）的光子的检测器（MD）。 该模块还包括：测量块（MB），其被配置为确定接收到的光子之一相对于发射脉冲的到达时间之间的时间差; 直方图块（HIST），其被配置为将所述差值累积在直方图中; 处理电路（PRC），其被配置为基于对直方图的评估来计算飞行时间值，然后从飞行时间值计算荧光寿命并且生成指示荧光的输出信号（OS） 荧光探针的寿命; 以及控制单元（CU），其被配置为启动光学发射器（OE）的脉冲发射。

公开(公告)号：EP2834617A4

公开(公告)日：2016-01-06

申请号：EP13772107

申请日：2013-03-29

Applicant: ECOLAB USA INC

Inventor： TOKHTUEV EUGENE ,  CHRISTENSEN WILLIAM M

IPC: G01N21/01 ,  G01N21/05 ,  G01N21/64 ,  G01N35/08

CPC classification number: G01N21/05 ,  G01N21/645 ,  G01N2201/0228

Abstract: A fluorescence analysis system may include a sensor head that has a light source configured to emit light into a flow of fluid, a detector configured to detect fluorescent emissions from the flow of fluid, and a temperature sensor. The system may also include a flow chamber that includes a housing defining a cavity into which the sensor head can be inserted. In some examples, the housing is configured such that, when a flow of fluid enters the housing, the flow of fluid divides into at least a major stream passing adjacent the light source and the detector and a minor stream passing adjacent the temperature sensor. Such a flow chamber may direct fluid past different sensors components while inhibiting a build-up of solids particles, the generation of air locks, or other flow issues attendant with continuous or semi-continuous online operation.

公开(公告)号：EP2786122A4

公开(公告)日：2015-07-08

申请号：EP12852572

申请日：2012-11-30

Applicant: SENSEAIR AB

Inventor： MARTIN HANS GÖRAN EVALD

IPC: G01N21/35 ,  G01N21/03 ,  G01N21/05

CPC classification number: G01N21/01 ,  B29C45/02 ,  B29K2063/00 ,  B29K2509/00 ,  B29L2011/00 ,  B29L2011/0083 ,  G01N21/031 ,  G01N21/05 ,  G01N21/3504 ,  G01N2021/0314 ,  G01N2021/0378 ,  G01N2201/0228

公开(公告)号：EP1580545A1

公开(公告)日：2005-09-28

申请号：EP05251363.7

申请日：2005-03-08

Applicant: Lockheed Martin Corporation

Inventor： Brewer, John F. ,  Kolp, Joseph P. ,  Miller, David W. ,  Schweigert, Paul C. ,  Sebok, Thomas J.

IPC: G01N21/05

CPC classification number: G01N21/05 ,  G01N15/0227 ,  G01N21/276 ,  G01N2015/0294 ,  G01N2201/0228 ,  G01N2201/0245

Abstract: An optical flow cell (10) is disclosed having a two-piece shell (30) with a first portion (31) and a second portion (32). The first portion (31) provides a light entry aperture (38), and the second portion provides an imaging aperture (39). An inlet tube (34) and an outlet tube (35) are retained between the first portion (31) and the second portion (32) when said first portion (31) and second portion (32) are assembled. A viewing assembly (36) is retained between the first portion and the second portion when said first portion (31) and second portion (32) are assembled. The viewing assembly (36) includes a reference plate (98) and a flow channel (102). The flow channel (102) fluidly communicates with the inlet tube (34) and the outlet tube (35). The reference plate (98) extends from the shell (30) to serve as a repeatable reference point for properly positioning the optical flow cell (10).

公开(公告)号：EP2834617A1

公开(公告)日：2015-02-11

申请号：EP13772107.2

申请日：2013-03-29

Applicant: Ecolab USA Inc.

Inventor： TOKHTUEV, Eugene ,  CHRISTENSEN, William, M.

IPC: G01N21/01 ,  G01N21/64 ,  G01N35/08

CPC classification number: G01N21/05 ,  G01N21/645 ,  G01N2201/0228

Abstract: A fluorescence analysis system may include a sensor head that has a light source configured to emit light into a flow of fluid, a detector configured to detect fluorescent emissions from the flow of fluid, and a temperature sensor. The system may also include a flow chamber that includes a housing defining a cavity into which the sensor head can be inserted. In some examples, the housing is configured such that, when a flow of fluid enters the housing, the flow of fluid divides into at least a major stream passing adjacent the light source and the detector and a minor stream passing adjacent the temperature sensor. Such a flow chamber may direct fluid past different sensors components while inhibiting a build-up of solids particles, the generation of air locks, or other flow issues attendant with continuous or semi-continuous online operation.

Abstract translation: 荧光分析系统可包括传感器头和温度传感器，所述传感器头具有配置成将光发射到流体流中的光源，配置成检测来自流体流的荧光发射的检测器。 该系统还可以包括流动室，该流动室包括限定空腔的壳体，传感器头可以插入该空腔中。 在一些示例中，壳体被构造成使得当流体流动进入壳体时，流体流分成至少一个通过光源和检测器附近的主流和通过温度传感器附近的次流。 这样的流动腔室可以引导流体经过不同的传感器部件，同时抑制固体颗粒的积聚，气闸的产生或伴随着连续或半连续在线操作的其他流动问题。

公开(公告)号：EP1570253A2

公开(公告)日：2005-09-07

申请号：EP03748081.1

申请日：2003-09-24

Applicant: ITV -INSTITUT FÜR TEXTIL-UND VERFAHRENSTECHNIK

Inventor： SCHNEIDER, Reinhold

IPC: G01N21/53 ,  G01N21/31 ,  G01N21/27

CPC classification number: G01N21/8507 ,  G01N15/06 ,  G01N21/274 ,  G01N21/31 ,  G01N21/534 ,  G01N2201/0228 ,  G01N2201/062 ,  G01N2201/12753 ,  G01N2201/12761 ,  G01N2201/128

Abstract: The invention relates to an optical sensor (1) for determining particle and/or dye concentrations in liquid or gaseous media and to a method for operating the same. The optical sensor (1) comprises at least one measuring head. The measuring head consists of an emitter unit (2) with a semiconductor emitting element (9), which emits visible emission light beams (8), and with a receiver unit (3) with a semiconductor receiving element (10). The portion of the emission light beams (8), which pass through an absorption section containing liquid or gaseous medium, is guided onto the receiving element (10). An evaluating unit (6) is coupled to the measuring head via electric leads (4, 4'), and the received signals, which are present at the output of the semiconductor receiving element (10), are evaluated inside said evaluating unit in order to determine the particle or die concentration.

公开(公告)号：EP0568549B1

公开(公告)日：1997-06-04

申请号：EP92901709.3

申请日：1991-11-25

Applicant: GAZTECH INTERNATIONAL CORPORATION

Inventor： WONG, Jacob, Y.

IPC: G01N1/00 ,  G01N21/05 ,  G01N21/35 ,  G08B17/10

CPC classification number: G01N21/0303 ,  G01J2001/161 ,  G01J2001/182 ,  G01N1/2258 ,  G01N21/0332 ,  G01N21/05 ,  G01N21/255 ,  G01N21/314 ,  G01N21/3504 ,  G01N2001/2261 ,  G01N2021/0321 ,  G01N2021/0385 ,  G01N2021/052 ,  G01N2201/0228 ,  G01N2201/06186 ,  G01N2201/0696 ,  G08B17/117 ,  G08B29/20

Abstract: A gas sample chamber (10) for use in a gas analyzer consists of an elongated hollow tube (21) having an inwardly-facing specularly-reflective surface (22) that permits the tube to function also as a light pipe for conducting radiation from a source (20) to a detector (16) through the sample gas. A number of apertures (24) in the wall of the elongated hollow tube permit the sample gas to enter and exit. Particles of smoke and dust of a size greater than 0.1 micron are kept out of the chamber by use of a semi-permeable membrane (28) that spans the apertures in the hollow tube. Condensation of the sample gas components is prevented by heating the sample chamber electrically to a temperature above the dew point of the component of concern.

Abstract translation: 用于测量辐射在其通过腔室内的气体时的吸收的样品室包括具有延伸的蛇形通道的块体。 延伸通道的壁涂覆有高反射材料，使得延伸通道用作用于传输辐射的光管。 许多较小的通道允许在样品室周围的空间中的气体扩散到辐射通过的延伸通道中。 采样室通过连接两个半部制成，每个半部具有制造细长凹槽的平面。 一半由塑料模制而成，而且室内价格相当便宜。

公开(公告)号：EP0619879A1

公开(公告)日：1994-10-19

申请号：EP93902862.0

申请日：1992-12-30

Applicant: GAZTECH INTERNATIONAL CORPORATION

Inventor： WONG, Jacob, Y.

IPC: G01N1 ,  G01N21 ,  G01N33 ,  G08B17 ,  G08B29

CPC classification number: G01N1/2258 ,  G01N21/0332 ,  G01N21/05 ,  G01N21/3504 ,  G01N33/0011 ,  G01N33/0016 ,  G01N33/0031 ,  G01N2001/2261 ,  G01N2021/0321 ,  G01N2021/0385 ,  G01N2021/052 ,  G01N2021/158 ,  G01N2021/8585 ,  G01N2201/0228 ,  G01N2201/066 ,  G08B17/117 ,  G08B29/20

Abstract: Une chambre (10) d'échantillons gazeux utilisée dans un analyseur de gaz comprend un tube creux allongé (21) présentant une surface à réflexion spéculaire et orientée vers l'intérieur (22), qui permet au tube de fonctionner également comme un conduit léger permettant de conduire un rayonnement à partir d'une source (12) vers un détecteur (14) à travers l'échantillon gazeux. Un certain nombre d'ouvertures (24) dans la paroi du tube creux allongé permettent à l'échantillon gazeux d'entrer et de sortir. Des particules de fumée et de poussière supérieures à 0,1 micron sont maintenues hors de la chambre par l'intermédiaire d'une membrane semi-perméable (28) recouvrant les ouvertures du tube creux. On prévient la condensation des constituants du gaz en chauffant électriquement la chambre d'échantillon jusqu'à une température supérieure à la température au point de rosée du constituant en question. Selon un mode de réalisation, plusieurs détecteurs (40, 42, 44) sont espacés autour du pourtour du tube creux allongé, à proximité d'une de ses extrémités. Selon un autre mode de réalisation, plusieurs détecteurs sont espacés sur la longueur du tube.

公开(公告)号：EP1570253B1

公开(公告)日：2015-07-08

申请号：EP03748081.1

申请日：2003-09-24

Applicant: Deutsche Institute für Textil- und Faserforschung Denkendorf

Inventor： SCHNEIDER, Reinhold

IPC: G01N15/06 ,  G01N21/85

CPC classification number: G01N21/8507 ,  G01N15/06 ,  G01N21/274 ,  G01N21/31 ,  G01N21/534 ,  G01N2201/0228 ,  G01N2201/062 ,  G01N2201/12753 ,  G01N2201/12761 ,  G01N2201/128