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    • 1. 发明申请
    • METHOD AND DEVICE FOR DETECTING EXPLOSIVE-SUBSTANCE PARTICLES IN A GAS FLOW
    • 用于检测气流中的嗅状颗粒的方法和装置
    • WO2012010123A3
    • 2012-03-22
    • PCT/DE2011001309
    • 2011-06-17
    • EADS DEUTSCHLAND GMBHBEER SEBASTIANZIEMANN THOMASFRIEDBERGER ALOIS
    • BEER SEBASTIANZIEMANN THOMASFRIEDBERGER ALOIS
    • G01N1/22
    • G01N1/4005G01N1/2205G01N1/2214G01N1/40G01N1/405G01N33/0057G01N2001/022
    • The invention relates to a method and device for detecting explosive-substance particles in a gas flow (46), wherein the gas flow (46) is conducted through an adsorption net (12) for a specified time period, wherein explosive-substance particles (18) are adsorbed onto the adsorption net, the adsorption net (12) is subsequently heated to a heating temperature, at which the explosive-substance particles (18) desorb, and a gas flow containing the desorbed explosive-substance particles is fed to a detector (40) in order to detect the explosive-substance particles, wherein a microfilter (12) having a pore size of less than the particle size of the explosive-substance particles (18) is used as the adsorption net. Thus it is possible to collect practically all explosive-substance particles (18) contained in the gas flow (46) and to feed said explosive-substance particles to a subsequent detection process, whereby the sensitivity of the detection process is increased.
    • 在一种方法和用于通过Adsorptionsnetz检测一个预定时期的气流(46)的气流(46)炸药颗粒的装置(12)被传递,所述炸药颗粒在其上的(18)吸附,则Adsorptionsnetz(12) 的加热温度在炸药颗粒(18)和与所述desobrierten炸药颗粒的气流,以一个检测器(40)被提供给检测其desobrieren,加热,使作为Adsorptionsnetz具有孔径比炸药颗粒的粒径更小的微过滤(12)(18 )被使用。 由此,能够几乎所有位于气体流(46)爆炸的粒子(18),以收集并送入随后的检测,由此检测的灵敏度提高。