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    • 5. 发明申请
    • DEVICE AND METHOD FOR DETECTING SULFUR DIOXIDE AT HIGH TEMPERATURES
    • 用于在高温下检测二氧化硫的装置和方法
    • US20080297178A1
    • 2008-12-04
    • US12111641
    • 2008-04-29
    • David L. WestFrederick C. MontgomeryTimothy R. Armstrong
    • David L. WestFrederick C. MontgomeryTimothy R. Armstrong
    • G01N27/04
    • G01N27/4074G01N33/0042Y02A50/248Y10T436/186
    • The present invention relates to a method for selectively detecting and/or measuring gaseous SO2 at a temperature of at least 500° C., the method involving: (i) providing a SO2-detecting device including an oxygen ion-conducting substrate having on its surface at least three electrodes comprising a first, second, and third electrode; (ii) driving a starting current of specified magnitude and temporal variation between the first and second electrodes; (iii) contacting the SO2-detecting device with the SO2-containing sample while maintaining the magnitude and any temporal variation of the starting current, wherein said SO2-containing sample causes a change in the electrical conductance of said device; and (iv) detecting the change in electrical conductance of the device based on measuring an electrical property related to or indicative of the conductance of the device between the first and third electrodes, or between the second and third electrodes, and detecting SO2 in the SO2-containing sample based on the measured change in electrical conductance.
    • 本发明涉及一种用于在至少500℃的温度下选择性地检测和/或测量气态SO 2的方法,所述方法包括:(i)提供包含氧离子传导基底的SO 2检测装置, 表面包括第一,第二和第三电极的至少三个电极; (ii)驱动第一和第二电极之间的指定幅度和时间变化的起始电流; (iii)使SO 2检测装置与含SO 2的样品接触,同时保持起始电流的大小和任何时间变化,其中所述含SO 2的样品导致所述装置的电导率的变化; 以及(iv)基于测量与所述第一和第三电极之间或所述第二和第三电极之间的所述器件的电导相关或指示的电特性,并且检测所述SO 2中的SO 2,来检测所述器件的电导率的变化 基于测量的电导率的变化。