Calibrators for infrared-type gas analyzers
    1.
    发明授权
    Calibrators for infrared-type gas analyzers 失效
    用于红外线气体分析仪的校准器

    公开(公告)号:US5206511A

    公开(公告)日:1993-04-27

    申请号:US600413

    申请日:1990-10-18

    CPC classification number: G01N21/3504 G01N21/274

    Abstract: A method of and device for calibrating infrared radiation transducers. A concentration factor representing the ratio of a data signal to a reference signal for a known concentration of a designated gas in a sample containing that gas is generated. The concentration factor is stored and used during subsequent calibration procedures. The calibration device has a zero cell and a span cell with windows for transmitting infrared radiation and radiation reflecting or absorbing material in the span cell. The span cell therefore provides a known and consistent level of radiation absorption.

    Abstract translation: 用于校准红外辐射换能器的方法和装置。 产生表示含有该气体的样品中已知浓度的指定气体的数据信号与参考信号之比的浓度系数。 浓度因子在随后的校准过程中被储存和使用。 校准装置具有零电池和带有窗口的跨距电池,用于传送红外线辐射和辐射反射或吸收跨距电池中的材料。 因此,跨距单元提供已知且一致的辐射吸收水平。

    Infrared source
    2.
    发明授权
    Infrared source 失效
    红外源

    公开(公告)号:US5369277A

    公开(公告)日:1994-11-29

    申请号:US598984

    申请日:1990-10-17

    Abstract: Infrared radiation emitter units for gas analyzers and other applications. The emitter has a substrate with a film of electrically resistive, emissive material on one of its surfaces. The emitter is so mounted on an emitter unit base that it can freely expand as the emitter heats up. A lead frame commutator, employed to electrically connect the emitter to an external power source, also facilitates the assembly of the unit. A component with a plated, parabolic surface collimates and focuses into an appropriate beam the energy generated by the emitter.

    Abstract translation: 用于气体分析仪和其他应用的红外辐射发射器单元。 发射器具有在其一个表面上具有电阻发光材料的膜的衬底。 发射极安装在发射器单元基座上,随着发射器加热,它可以自由扩展。 用于将发射器电连接到外部电源的引线框架换向器也有助于组件的组装。 具有电镀抛物面的部件准直并聚焦到适当的光束中,由发射器产生的能量。

    Infrared radiation detector units and methods of assembling transducers
in which said units are incorporated
    4.
    发明授权
    Infrared radiation detector units and methods of assembling transducers in which said units are incorporated 失效
    红外线辐射检测器单元和装配所述单元的换能器的方法

    公开(公告)号:US5793044A

    公开(公告)日:1998-08-11

    申请号:US554898

    申请日:1995-11-09

    CPC classification number: G01N21/3504 G01N21/274 G01N21/61

    Abstract: A transducer for nondispersive infrared radiation (NDIR) gas analysis and a passive device for verifying the calibration of the transducer. The calibration verification device can be mounted on a cable by which the transducer is attached to an associated signal processing-control-display unit (SPCDU) or monitor. Calibration parameters for the transducer are stored in a plug at the monitor end of the cable. The transducer includes an integrated subassembly of an infrared radiation source unit, an infrared radiation detector unit, and a flex connector and may be employed with an airway adapter preferably maintained by a thick film heating element at an above-dewpoint temperature to ascertain the concentration of a specie potentially present in gases flowing through the adapter. The transducer may also be employed for other purposes.

    Abstract translation: 用于非分散红外辐射(NDIR)气体分析的传感器和用于验证换能器校准的无源装置。 校准验证装置可以安装在电缆上,传感器通过该电缆连接到相关联的信号处理控制显示单元(SPCDU)或监视器。 传感器的校准参数存储在电缆监视器端的插头中。 换能器包括红外辐射源单元,红外辐射检测器单元和柔性连接器的集成子组件,并且可以与气道适配器一起使用,优选地在上限温度下由厚膜加热元件保持,以确定浓度 可能存在于通过适配器的气体中存在的物质。 传感器也可用于其它目的。

    Oxygen monitoring apparatus
    6.
    发明授权
    Oxygen monitoring apparatus 失效
    氧气监测仪

    公开(公告)号:US07897109B2

    公开(公告)日:2011-03-01

    申请号:US09841363

    申请日:2001-04-24

    Abstract: Apparatus or systems which employ luminescence quenching to produce an oxygen concentration indicative signal. Components of such systems include: (1) an airway adapter, sampling cell, or the like having a sensor which is excited into luminescence with the luminescence decaying in a manner reflecting the concentration of oxygen in gases flowing through the airway adapter or other flow device; (2) a transducer which has a light source for exciting a luminescable composition in the sensor into luminescence and a light sensitive detector for converting energy emitted from the luminescing composition as that composition is quenched into an electrical-signal indicative of oxygen concentration in the gases being monitored; and (3) subsystems for maintaining the sensor temperature constant and for processing the signal generated by the light sensitive detector. Sensors for systems of the character just described, methods of fabricating those sensors, and methods for installing the sensors in the flow device.

    Abstract translation: 采用发光淬灭以产生氧浓度指示信号的装置或系统。 这种系统的组件包括:(1)具有传感器的气道适配器,采样单元等,其被激发成发光,发光以反映流过气道适配器或其它流动装置的气体中的氧浓度的方式衰减 ; (2)具有用于将传感器中的可发光组合物激发成发光的光源的传感器和用于将该发光组合物发射的能量转换为指示该气体中的氧浓度的电信号的光敏检测器 被监视 和(3)用于维持传感器温度恒定并用于处理由光敏检测器产生的信号的子系统。 用于刚刚描述的角色的系统的传感器,制造这些传感器的方法,以及用于将传感器安装在流动装置中的方法。

    Oxygen monitoring and apparatus
    7.
    发明授权
    Oxygen monitoring and apparatus 失效
    氧气监测和仪器

    公开(公告)号:US06325978B1

    公开(公告)日:2001-12-04

    申请号:US09128918

    申请日:1998-08-04

    Abstract: Apparatus or systems which employ luminescence quenching to produce an oxygen concentration indicative signal. Components of such systems include: (1) an airway adapter, sampling cell, or the like having a sensor which is excited into luminescence with the luminescence decaying in a manner reflecting the concentration of oxygen in gases flowing through the airway adapter or other flow device; (2) a transducer which has a light source for exciting a luminescable composition in the sensor into luminescence and a light sensitive detector for converting energy emitted from the luminescing composition as that composition is quenched into an electrical signal indicative of oxygen concentration in the gases being monitored; and (3) subsystems for maintaining the sensor temperature constant and for processing the signal generated by the light sensitive detector. Sensors for systems of the character just described, methods of fabricating those sensors, and methods for installing the sensors in the flow device.

    Abstract translation: 采用发光淬灭以产生氧浓度指示信号的装置或系统。 这种系统的组件包括:(1)具有传感器的气道适配器,采样单元等,其被激发成发光,发光以反映流过气道适配器或其它流动装置的气体中的氧气浓度的方式衰减 ; (2)具有用于将传感器中的可发光组合物激发成发光的光源的传感器和用于转换从发光组合物发射的能量的光敏检测器,该组合物被猝灭成指示气体中的氧浓度的电信号 监控 和(3)用于维持传感器温度恒定并用于处理由光敏检测器产生的信号的子系统。 用于刚刚描述的角色的系统的传感器,制造这些传感器的方法,以及用于将传感器安装在流动装置中的方法。

    Gas analyzer cuvettes
    8.
    发明授权
    Gas analyzer cuvettes 失效
    气体分析器比色杯

    公开(公告)号:US5616923A

    公开(公告)日:1997-04-01

    申请号:US300383

    申请日:1994-09-02

    CPC classification number: G01N21/0303 G01N21/05 G01N21/3504 G01J3/10 G01J3/36

    Abstract: Gas analyzer systems which include: (1) a transducer for outputting a signal indicative of the concentration of a specified gas in a sample which may contain that gas, and (2) an airway adapter or cuvette with a flow passage for confining the sample to a particular path traversing the transducer. The cuvettes feature radiant energy transmitting windows which are flush mounted in apertures on opposite sides of the cuvette flow passage and are fabricated from a polymer such as biaxially oriented polypropylene which is malleable, yet resistant to wrinkling, warping, and other forms of distortion. Retainer rings keep the windows flat and distortion free with an accurately reproducible spacing between the windows.

    Abstract translation: 气体分析仪系统,其包括:(1)用于输出指示可能含有该气体的样品中特定气体的浓度的信号的换能器,以及(2)具有用于限制样品的流动通道的气道适配器或比色皿 穿过传感器的特定路径。 比色杯具有辐射能传递窗,其平齐地安装在比色皿流动通道的相对侧上的孔中,并且由诸如双轴取向聚丙烯的聚合物制成,该聚合物是可延展的,但是耐起皱,翘曲和其它形式的变形。 保持环保持窗户平坦,无失真,窗户之间可以准确地重复间隔。

    Gas analyzer
    9.
    发明授权
    Gas analyzer 失效
    气体分析仪

    公开(公告)号:US4958075A

    公开(公告)日:1990-09-18

    申请号:US453227

    申请日:1989-12-14

    Abstract: Sampling attachments or systems for infrared gas analyzers of the non-dispersive type. Major components of the system include a sampling device or cuvette, a vacuum pump for effecting a flow of the gases to be analyzed through the cuvette, a microprocessor based pump control, and a switch which is closed and allows the pump to be turned on only if an appropriate sampling cuvette is connected up to the pump. The sampling attachments are designed for medical applications--to provide readings of tidal carbon dioxide, for example. They have a minimally invasive nasal cannula for collecting the gases which are to be subjected to analysis; viz., those exhaled by a patient. These gases are conducted to the cuvette through a line which is gastight but allows moisture to escape, thereby keeping moisture mixed with the gases being analyzed from corrupting the readings outputted by the gas analyzer. The attachment can be easily and quickly disassembled and the components disposed of or sterilized and recycled if they become contaminated. Provision is made for collecting the gases after they have been discharged from the cuvette so that they will not be discharged into and perhaps contaminate the ambient surroundings.

    Abstract translation: 非分散型红外线气体分析仪的取样附件或系统。 该系统的主要部件包括取样装置或比色皿,用于通过比色皿进行待分析气体的流动的真空泵,基于微处理器的泵控制器和关闭的开关,并允许泵仅打开 如果适当的采样比色皿连接到泵。 采样附件设计用于医疗应用 - 例如提供潮气二氧化碳的读数。 它们具有用于收集要进行分析的气体的微创鼻插管; 即患者呼出的那些。 这些气体通过气体传导到比色杯,气体气体允许水分逸出,从而保持水分与被分析气体混合,从而破坏气体分析仪输出的读数。 附件可以方便快捷地拆卸,并将其组件处理或灭菌,并且如果它们被污染则可循环使用。 这些设备是在从比色皿排出之后收集气体,以便它们不会排出,也可能污染周围环境。

    Gas analyzers
    10.
    发明授权
    Gas analyzers 失效
    气体分析仪

    公开(公告)号:US4859858A

    公开(公告)日:1989-08-22

    申请号:US24770

    申请日:1987-03-11

    CPC classification number: G01N21/3504 A61B5/0836 A61B5/097 G01J3/108

    Abstract: Gas analyzers of the non-dispersive infrared radiation type which are designed to measure the concentration of one gas in a mixture of gases containing that gas. A novel, electrically modulated, stable, thick film infrared radiation emitter is employed to emit a beam of collimated, focused energy; and two electrically biased detectors are preferably used so that a ratioed, error eliminating output signal can be supplied to the failsafe, signal processing circuitry of the analyzer. The latter, and a conventional analog-to-digital convertor, supply information to a microcomputer which: (1) turns the infrared radiation emitter on and off; (2) controls a heater which keeps the infrared radiation detectors at a constant, precise temperature; and (3) controls displays of a variety of information concerning the gas being measured and the status of the gas analyzer. The microcomputer also accepts ambient temperature, barometric pressure, and other compensation factors. Typically, a disposable airway adapter will be included in the gas analyzer to confine the mixture of gases being analyzed to a path having a transverse dimension of precise and specific length and to provide an optical path across that stream of gases between the infrared radiation emitter and the infrared radiation detectors. The emitter and detectors are incorporated in a transducer head which can be detachably fixed to the airway adapter.

    Abstract translation: 非分散型红外辐射型气体分析仪被设计用于测量含有该气体的气体混合气体中一种气体的浓度。 采用一种新颖的电调制稳定的厚膜红外辐射发射器来发射准直聚焦能量束; 并且优选地使用两个电偏置检测器,使得可以将比率的误差消除输出信号提供给分析仪的故障保护信号处理电路。 后者和传统的模拟 - 数字转换器向微型计算机提供信息:(1)打开和关闭红外辐射发射器; (2)控制加热器,其将红外辐射探测器保持在恒定的精确温度; 和(3)控制关于被测气体和气体分析仪的状态的各种信息的显示。 微型计算机还接受环境温度,气压和其他补偿因素。 通常,气体分析器中将包括一次性气道适配器,以将待分析气体的混合物限制在具有精确和特定长度的横向尺寸的路径上,并且在红外辐射发射器和 红外辐射探测器。 发射器和检测器结合在可拆卸地固定到气道适配器的换能器头部中。

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