Discharge ionization current detector

Discharge ionization current detector

  • CN 103,293,217 A
  • Filed: 06/28/2012
  • Published: 09/11/2013
  • Est. Priority Date: 02/28/2012
  • Status: Active Application
First Claim
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1. a discharge ionization current detecting device is characterized in that, comprising:

  • Plasma generates the dielectric tube of gas flow;

    The plasma generating unit, described plasma generating unit is that the described plasma of described dielectric tube generates an interval on the gas flow direction, it has a plurality of discharge electrodes, described a plurality of discharge generates gas flow direction with the form of surrounding described dielectric tube periphery along plasma with electrode to have on the outer peripheral face that is spaced apart and arranged in described dielectric tube each other, and described plasma generating unit generates plasma by making at described discharge electricity consumption interpolar generation dielectric barrier discharge;

    Framework, described framework is provided with;

    the described plasma that be used for to connect described dielectric tube generate the gas flow direction the downstream the end the dielectric tube connecting portion, have the internal diameter bigger than described dielectric tube the space, be arranged on the position relative with described dielectric tube connecting portion and be used for escape hole that sample gas is directed into the sample gas introducing port in the described space and is used for discharging the gas in the described space;

    The sample ionization part, described sample ionization part is arranged in the described framework;

    WithIonization current test section, described ionization current test section be for detection of the sample composition that has been ionized in described sample ionization part,One end in the downstream of the described plasma generation gas flow direction of described dielectric tube is side-prominent to described framework volume inside.

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