Plaque for measuring the dose of reactive gases
    1.
    发明授权
    Plaque for measuring the dose of reactive gases 失效
    用于测量反应性气体剂量的斑块

    公开(公告)号:US4271121A

    公开(公告)日:1981-06-02

    申请号:US75376

    申请日:1979-09-13

    CPC classification number: G01N31/224 Y10S436/902 Y10T436/196666

    Abstract: Plaques for rapid retrospective recognition of an overdose of noxious gases are of great importance for industrial protection in the chemical industry. These plaques carry an indicator which undergoes a color change on exposure to the gas. Visual assessment of the indicator is considerably facilitated by subdivision of the indicator surface into a plurality of measuring fields with graded sensitivity by means of different covering membranes. Rapid allocation to a given range of dose is possible by separate or combined visual observation of the individual fields of the indicator.

    Abstract translation: 用于快速回顾性地识别过量的有害气体的斑块对化学工业的工业保护非常重要。 这些斑块带有在暴露于气体时经历颜色变化的指示器。 通过用不同的覆盖膜将指示剂表面细分成多个具有分级灵敏度的测量场,显着地促进了指示剂的目视评估。 通过对指标的各个字段进行单独或组合的目视观察,可以快速分配给定范围的剂量。

    Apparatus for checking gas analysis devices
    2.
    发明授权
    Apparatus for checking gas analysis devices 失效
    用于检查气体分析装置的装置

    公开(公告)号:US4267030A

    公开(公告)日:1981-05-12

    申请号:US970100

    申请日:1978-12-15

    CPC classification number: G01N33/0006

    Abstract: An apparatus for checking gas analysis devices in respect of their sensitivity and their response and regeneration behaviour with respect to time, wherein a reproducible quantity of the measurement component is produced at a predetermined production rate, for a period of time which is guided entirely or at a constant proportion as a concentration pulse to the measurement element of the gas analysis device. For the production of the measurement component a chemical or electro-chemical reaction or even a thermal reaction is used. The time interval can then be conveniently controlled. A decisive advantage with toxic measurement components is that the gas production takes place in all cases for only a short time during the test procedure.

    Abstract translation: 一种用于检查气体分析装置的灵敏度及其相对于时间的响应和再生行为的装置,其中以预定的生产速率产生测量部件的可重复量,该时间段完全或在 作为气体分析装置的测量元件的浓度脉冲的恒定比例。 对于测量部件的生产,使用化学或电化学反应或甚至使用热反应。 然后可以方便地控制时间间隔。 具有有毒测量组件的决定性优点是,在所有情况下,在测试过程中仅在短时间内进行天然气生产。

    Method for checking gas analysis devices
    3.
    发明授权
    Method for checking gas analysis devices 失效
    检查气体分析装置的方法

    公开(公告)号:US4151739A

    公开(公告)日:1979-05-01

    申请号:US791125

    申请日:1977-04-25

    CPC classification number: G01N33/0006

    Abstract: A method for checking gas analysis devices in respect of their sensitivity and their response and regeneration behaviour with respect to time, wherein a reproducible quantity of the measurement component is produced at a predetermined production rate, for a period of time which is guided entirely or at a constant proportion as a concentration pulse to the measurement element of the gas analysis device. For the production of the measurement component a chemical or electro-chemical reaction or even a thermal reaction is used. The time interval can then be conveniently controlled. A decisive advantage with toxic measurement components is that the gas production takes place in all cases for only a short time during the test procedure.

    Abstract translation: 一种用于检查气体分析装置的灵敏度及其相对于时间的响应和再生行为的方法,其中以预定的生产速率产生测量部件的可重复量,该时间段完全或在 作为气体分析装置的测量元件的浓度脉冲的恒定比例。 对于测量部件的生产,使用化学或电化学反应或甚至使用热反应。 然后可以方便地控制时间间隔。 具有有毒测量组件的决定性优点是,在所有情况下,在测试过程中仅在短时间内进行天然气生产。

    Measuring apparatus for the analytical determination of a gas partial
pressure
    4.
    发明授权
    Measuring apparatus for the analytical determination of a gas partial pressure 失效
    用于分析气体分压的测量装置

    公开(公告)号:US4444645A

    公开(公告)日:1984-04-24

    申请号:US397618

    申请日:1982-07-12

    CPC classification number: G01N27/4163

    Abstract: The measuring apparatus is based on an electrochemical sensor with a hollow chamber connected upstream through which the gas to be measured diffuses to the sensor surface. A pump for introducing a rinsing gas is connected to the hollow chamber. Moreover, the rinsing gas connection is connected to a test gas source which produces a known concentration of the component to be measured. The function of the sensor may be controlled by connecting the test gas source. The accuracy of the measured values and thus the reliability of the measuring apparatus may be substantially improved by these measures.

    Abstract translation: 测量装置基于电化学传感器,其具有连接上游的中空室,待测量的气体通过该中空室向传感器表面扩散。 用于引入冲洗气体的泵连接到中空室。 此外,冲洗气体连接连接到测试气体源,该测试气体源产生已测浓度的待测量组分。 可以通过连接测试气体源来控制传感器的功能。 通过这些措施可以显着改善测量值的精确度和测量装置的可靠性。

    Electrochemical gas detector and method of using same
    6.
    发明授权
    Electrochemical gas detector and method of using same 失效
    电化学气体检测仪及其使用方法

    公开(公告)号:US4141800A

    公开(公告)日:1979-02-27

    申请号:US791126

    申请日:1977-04-25

    Abstract: An electrochemical gas detector based on an electrolytic measurement cell having a normally solid organic electrolyte. The gas component to be detected diffuses out of the gas chamber at a three phase border (electrolyte-electrode-gas chamber) and there causes a change in the electrochemical equilibrium. As a result in an outer closing circuit a measurable electrical current is produced. The electrolyte consists of an anhydrous organic gel with a very low vapor pressure. The gas chamber adjacent to the three phase border constitutes a partly sealed cavity, which is in communication with the gas atmosphere to be examined via an absorption filter selectively permeable to the measurement component. The length of the cavity is dimensioned so as to be so short that practically no back diffusion of the measurement component through the filter takes place.

    Abstract translation: 一种基于具有通常固体有机电解质的电解测量池的电化学气体检测器。 待检测的气体成分在三相边界(电解液 - 电极 - 气体)处扩散出气室,导致电化学平衡的变化。 结果在外部闭合电路中产生可测量的电流。 电解质由非常低蒸气压的无水有机凝胶组成。 与三相边界相邻的气室构成部分密封的空腔,其通过可选择地渗透测量部件的吸收过滤器与待测气体连通。 空腔的长度尺寸设计得很短,实际上不会发生测量部件通过过滤器的反向扩散。

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