SOOT DETECTING APPARATUS AND SOOT DETECTING METHOD
    1.
    发明申请
    SOOT DETECTING APPARATUS AND SOOT DETECTING METHOD 审中-公开
    检测装置和检测方法

    公开(公告)号:US20080178657A1

    公开(公告)日:2008-07-31

    申请号:US12022366

    申请日:2008-01-30

    IPC分类号: G01R19/155

    CPC分类号: G01N15/0656

    摘要: A soot detecting apparatus includes: a high voltage generating unit for generating a high voltage; a discharge sensor which includes a pair of electrodes to be, disposed in an atmosphere to be detected, for causing a spark discharge at a discharge voltage dependent upon soot concentration in the atmosphere when the high voltage is applied across the pair of electrodes; a first detection unit for detecting a first discharge voltage value when the spark discharge occurs in the discharge sensor upon application of the high voltage of a predetermined voltage polarity; a first output unit for determining a first soot concentration value based on the first discharge voltage value; and a changeover unit for converting the predetermined voltage polarity to an opposite voltage polarity for causing reverse spark discharge at the pair of electrodes of the discharge sensor.

    摘要翻译: 烟灰检测装置包括:高电压产生单元,用于产生高电压; 放电传感器,其包括设置在待检测气氛中的一对电极,用于当高电压施加在所述一对电极上时,使得在取决于大气中的烟灰浓度的放电电压下产生火花放电; 第一检测单元,用于当施加预定电压极性的高电压时在放电传感器中发生火花放电时检测第一放电电压值; 第一输出单元,用于基于第一放电电压值确定第一烟灰浓度值; 以及用于将预定电压极性转换为相反电压极性的转换单元,用于在放电传感器的一对电极处引起反向火花放电。