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    OPTICAL GAS SENSING APPARATUS WITH EXPLOSION-PROOF ENCLOSURE
    21.
    发明公开
    OPTICAL GAS SENSING APPARATUS WITH EXPLOSION-PROOF ENCLOSURE 有权

    公开(公告)号：EP3198261A4

    公开(公告)日：2018-07-25

    申请号：EP15843974

    申请日：2015-09-22

    Applicant: ROSEMOUNT ANALYTICAL INC

    Inventor： SCHACHINGER PETER

    IPC: G01N21/39 ,  G01N33/00 ,  G01N33/22

    CPC classification number: G01N21/31 ,  G01N21/39 ,  G01N21/59 ,  G01N33/0027 ,  G01N33/227 ,  G01N2021/399 ,  G01N2201/022 ,  G01N2201/0236

    Abstract: An optical gas sensing apparatus includes an explosion-rated device electronics enclosure. An explosion-rated sensing enclosure has a light transmitting element to allow light to pass out of and into the sensing enclosure. The sensing enclosure is operably coupled to the explosion-rated device electronics enclosure by a feed-through. In one aspect, an internal volume of the sensing enclosure is less than or equal to about one fiftieth of the volume of the explosion-rated device electronics enclosure. In another aspect, the thickness of the light transmitting element is less than or equal to about 3 millimeters. A light source is disposed within the sensing enclosure and is operably coupled to the device electronics. A detector is disposed within the sensing enclosure and is also operably coupled to the device electronics.

    Gas sensor
    22.
    发明公开
    Gas sensor 审中-公开
    Gassensor

    公开(公告)号：EP2264434A2

    公开(公告)日：2010-12-22

    申请号：EP10183853.0

    申请日：2004-12-01

    Applicant: CITY TECHNOLOGY LIMITED

    Inventor： Cutler, Stuart Christopher ,  Vass, Alexander

    IPC: G01N21/35

    CPC classification number: G01N21/3504 ,  G01N21/314 ,  G01N21/71 ,  G01N2021/0385 ,  G01N2201/0236 ,  G01N2201/024 ,  G01N2201/0632

    Abstract: A gas sensor comprises a cavity (32) for containing a gas, means (16) for generating radiation which is transmitted through the cavity and includes one or more wavelengths which is absorbed in use by a gas to be detected; and a detector (14) for detecting radiation which has passed through the cavity (32). The walls of the cavity (32) are sufficiently reflective to the radiation that the cavity (32) is substantially uniformally illuminated with the radiation.

    Abstract translation: 气体传感器包括用于容纳气体的空腔（32），用于产生辐射的装置（16），其透射通过空腔并且包括一个或多个被待检测气体吸收的波长; 和检测器（14），用于检测已经通过空腔（32）的辐射。 空腔（32）的壁对辐射充分反射，空腔（32）被辐射基本均匀地照射。

    GAS SENSOR
    24.
    发明申请
    GAS SENSOR 审中-公开
    气体传感器

    公开(公告)号：WO2005054827A1

    公开(公告)日：2005-06-16

    申请号：PCT/GB2004/005035

    申请日：2004-12-01

    Applicant: CITY TECHNOLOGY LIMITED ,  CUTLER, Stuart, Christopher ,  VASS, Alexander

    Inventor： CUTLER, Stuart, Christopher ,  VASS, Alexander

    IPC: G01N21/35

    CPC classification number: G01N21/3504 ,  G01N21/314 ,  G01N21/71 ,  G01N2021/0385 ,  G01N2201/0236 ,  G01N2201/024 ,  G01N2201/0632

    Abstract: A gas sensor comprises a cavity for containing a gas, means for generating radiation which is transmitted through the cavity and includes one or more wavelengths which is absorbed in use by a gas to be detected; and a detector for detecting radiation which has passed through the cavity. The walls of the cavity are sufficiently reflective to the radiation that the cavity is substantially uniformally illuminated with the radiation.

    Abstract translation: 气体传感器包括用于容纳气体的空腔，用于产生辐射的装置，其透射通过空腔并且包括一个或多个被待检测气体吸收的波长; 以及用于检测已经通过空腔的辐射的检测器。 空腔的壁足够地反射辐射，空腔基本上被辐射均匀地照射。

    광전식 연기 감지기
    25.
    发明公开
    광전식 연기 감지기 审中-实审
    光电式烟雾传感器

    公开(公告)号：KR1020160095036A

    公开(公告)日：2016-08-10

    申请号：KR1020167017712

    申请日：2014-07-14

    Applicant: 펜월 컨트롤즈 오브 재팬, 리미티드

    Inventor： 이구치마사오 ,  시부야다다유키 ,  누마오간지 ,  마스모토신타로

    IPC: G01N21/53 ,  G01J1/44 ,  G01N33/00 ,  G08B17/107

    CPC classification number: G01N21/53 ,  G01D11/245 ,  G08B17/103 ,  G08B17/107 ,  G08B17/113 ,  G01N21/532 ,  G01J1/44 ,  G01N33/0063 ,  G01N2201/0236

    Abstract: 내부에있어서의폭발이외부로인화하는일 없이, 발광장치및 수광장치의주위에있어서수지등을필요로하지않기때문에, 수지의열화에의한폭발을방지함으로써, 방폭지정구역내에노출된상태에서사용할수 있는광전식연기감지기를제공한다. 회로수용부(44)를갖는방폭구조형의박스체의외측에발광장치(35A)와수광장치(35B)를설치하고, 발광장치(35A)는, 발광소자(61)와투명부재 A(62)를갖고, 수광장치(35B)는, 수광소자(71)와투명부재 B(72)를갖고, 내벽면 A(64)와투명부재 A(62)의간극(W1), 및내벽면 B(74)와투명부재 B(72)의간극(W2)이, 방폭규정에적합한폭을갖고, 개구부 A(68)로부터투명부재 A의선단면(69)까지의길이(L1), 및개구부 B(78)로부터투명부재 B의선단 (79)까지의길이(L2)가, 방폭규정에적합한길이인것을특징으로한다.

    Abstract translation: 提供一种防爆光电式烟雾探测器，能够防止周围气体因其内部的爆炸而产生的火焰，以及消除发光装置周围的填充空间和具有树脂的光接收装置，从而检查由于劣化引起的爆炸 的树脂，其使得能够使用检测器，其中暴露于防爆区域中的气体的装置。 发光/接收装置布置在具有电路室的防爆外壳的外部。 它们分别具有中空圆柱体A和B，发光/接收元件和用于发射发射光并引导接收光的导光构件A和B，其中每个中空圆柱体的管壁与每个导光构件之间的间隙和 在每个气缸中形成的开口和出射/进入端的光之间的每个构件的长度使得装置能够防止检测器内部产生的火焰泄漏。

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