FLUID MIXTURE COMPOSITION SENSOR
    1.
    发明公开
    FLUID MIXTURE COMPOSITION SENSOR 审中-公开
    传感器用于测定流体混合物的组成

    公开(公告)号:EP1456633A2

    公开(公告)日:2004-09-15

    申请号:EP02792548.6

    申请日:2002-12-17

    摘要: An improved, affordable, and rapid fluid mixture composition or process monitor based on a thermal microstructure sensor. This is preferably accomplished with a microbridge sensor design that has reduced susceptibility to interfering components of the mixture. The sensor described herein is therefore suitable for monitoring the concentration of at least one component in a fluid mixture when the fluid mixture consists of either (1) two components with very different thermal conductivities; or (2) three or more components wherein at least one component has a very different thermal conductivity and the effects of the other components can be largely eliminated, especially if the component of interest is hydrogen and the interference is from the variability in the concentrations of CO2 and H2O.

    GAS METER INCORPORATING CALORIFIC MEASUREMENT
    2.
    发明公开
    GAS METER INCORPORATING CALORIFIC MEASUREMENT 审中-公开
    GASZÄHLERMIT EINER KALORISCHEN MESSUNG

    公开(公告)号:EP1070231A4

    公开(公告)日:2002-01-16

    申请号:EP99913009

    申请日:1999-04-08

    申请人: EMAIL LTD

    CPC分类号: G01N33/225 G01N27/16

    摘要: A gas meter (10) determining the calorific value of the gas passing through the meter is disclosed. The meter includes a reaction chamber (28) that draws gas from the gas flow path and an air intake (30). The calorific value is determined using a resistor (36), coated with a catalyst material, that forms part of a wheatstone bridge circuit. Oxidation of the gas/air mixture on the surface of the resistor (36) causes a temperature and resistance change dependent on the calorific value of the gas that can be detected by the wheatstone bridge.

    摘要翻译: 公开了一种确定通过仪表的气体的发热量的燃气表(10)。 仪表包括从气体流动通道吸入气体的反应室(28)和进气口(30)。 使用涂覆有形成惠斯通电桥电路的一部分的催化剂材料的电阻器(36)确定发热量。 气体/空气混合物在电阻器(36)的表面上的氧化导致温度和电阻变化取决于可由惠斯通电桥检测的气体的发热量。

    ENVIRONMENTAL MONITORING DEVICE AND METHOD
    3.
    发明公开
    ENVIRONMENTAL MONITORING DEVICE AND METHOD 失效
    环境监测装置及方法

    公开(公告)号:EP0460029A4

    公开(公告)日:1993-08-04

    申请号:EP90903717

    申请日:1990-02-23

    CPC分类号: G01N33/0031 G01N33/004

    摘要: A CO2 concentration measurement device (Fig. 3) having volumetric sensing means (14), true O2 sensing means (11) and processing means (16). The measurement device is adapted to sense two signals, firstly, a signal which measures true O2 over the concentration, and a signal which measures CO2 enhanced O2 concentration. The processor calculates the difference between the CO2 enhanced O2 concentration and the true O2 concentration and provides an appropriately calibrated indication of the CO2 concentration of the environment. The invention also relates to a total environmental monitor incorporating the abovementioned CO2 concentration measurement device, and optionally, a CH4 measurement device.

    Sensoranordnung zum Nachweis von Gasen durch exotherme katalytische Reaktionen
    4.
    发明公开
    Sensoranordnung zum Nachweis von Gasen durch exotherme katalytische Reaktionen 失效
    通过热能催化反应检测气体的探针

    公开(公告)号:EP0321785A3

    公开(公告)日:1991-04-03

    申请号:EP88120461.4

    申请日:1988-12-07

    IPC分类号: G01N25/30

    CPC分类号: G01N25/30

    摘要: Die Sensoranordnung enthält einen mit einer Katalysator­schicht (9) versehenen Transistor (20). Der Nachweis der Gase erfolgt über die Temperaturerhöhung des Transistors (20) infolge einer exotermen, katalytischen Reaktion an der Katalysatoroberfläche, wobei die Katalysatorschicht (9) eine vorbestimmte Betriebstemperatur haben muß. Die Katalysator­schicht (9) wird durch die Verlustleistung des Transistors (20), der als Sensor wirkt, oder durch die Verlustleistung eines Heiztransistors (11) geheizt.

    摘要翻译: 探针(传感器)包含设置有催化剂层(9)的晶体管(20)。 催化剂层(9)必须处于预定的工作温度时,由于在催化剂表面发生放热的催化反应,晶体管(20)的温度升高来检测气体。 催化剂层(9)被作为探针的晶体管(20)的功率消耗或来自加热晶体管(11)的功率消耗加热。

    Sensor and method for measuring gas concentrations
    7.
    发明公开
    Sensor and method for measuring gas concentrations 审中-公开
    传感器和Verfahren zur Messung von Gasgehalten

    公开(公告)号:EP1160567A3

    公开(公告)日:2004-01-21

    申请号:EP01660066.0

    申请日:2001-04-11

    IPC分类号: G01N25/30 G01N25/32 G01K17/00

    CPC分类号: G01N25/32

    摘要: The invention concerns a method and a sensor for measuring gas concentrations. The sensor according to the invention comprises an element (A1, 5) which is sensitive to a chemical reaction of the gas being measured and means for measuring (13) the temperature of the element (A1, 5) sensitive to a chemical reaction of the gas being measured. According to the invention, the temperature-measuring means (TP1, TP2) are constituted by several series-connected thermopairs (13).

    摘要翻译: 本发明涉及用于测量气体浓度的方法和传感器。 根据本发明的传感器包括对待测气体的化学反应敏感的元件(A1,5)和用于测量(13)对于化学反应敏感的元件(A1,5)的温度的装置 被测量的气体 根据本发明,温度测量装置(TP1,TP2)由若干串联连接的热电偶(13)构成。

    Sensor and method for measuring gas concentrations
    9.
    发明公开
    Sensor and method for measuring gas concentrations 审中-公开
    传感器和方法,用于测量气体含量

    公开(公告)号:EP1160567A2

    公开(公告)日:2001-12-05

    申请号:EP01660066.0

    申请日:2001-04-11

    IPC分类号: G01N25/30

    CPC分类号: G01N25/32

    摘要: The invention concerns a method and a sensor for measuring gas concentrations. The sensor according to the invention comprises an element (A1, 5) which is sensitive to a chemical reaction of the gas being measured and means for measuring (13) the temperature of the element (A1, 5) sensitive to a chemical reaction of the gas being measured. According to the invention, the temperature-measuring means (TP1, TP2) are constituted by several series-connected thermopairs (13).

    GAS METER INCORPORATING CALORIFIC MEASUREMENT
    10.
    发明公开
    GAS METER INCORPORATING CALORIFIC MEASUREMENT 审中-公开
    WITH A热量计量气表

    公开(公告)号:EP1070231A1

    公开(公告)日:2001-01-24

    申请号:EP99913009.9

    申请日:1999-04-08

    申请人: EMAIL LIMITED

    IPC分类号: G01F1/66 G01F1/69 G01N25/30

    CPC分类号: G01N33/225 G01N27/16

    摘要: A gas meter (10) determining the calorific value of the gas passing through the meter is disclosed. The meter includes a reaction chamber (28) that draws gas from the gas flow path and an air intake (30). The calorific value is determined using a resistor (36), coated with a catalyst material, that forms part of a wheatstone bridge circuit. Oxidation of the gas/air mixture on the surface of the resistor (36) causes a temperature and resistance change dependent on the calorific value of the gas that can be detected by the wheatstone bridge.