Ionized gas detection device

A detection device and ionization technology, applied in the direction of measuring devices, material analysis through electromagnetic means, instruments, etc., can solve the problems of mutual interference of ion generators, etc., and achieve the effect of improved resolution, simple structure and best detection effect
CN101915801AActive Publication Date: 2010-12-15CHENGDU ACTION ELECTRONICS JOINT STOCK
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHENGDU ACTION ELECTRONICS JOINT STOCK
Publication Date
2010-12-15

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Abstract

The invention relates to the technology of trace material detection, and discloses an ionized gas detection device. An open corona discharge ionic generator is adopted to improve the performance of the ionic generator. The invention adopts a technical scheme that: the ionized gas detection device comprises the ionic generator, an ionic filter and an ionic detector, wherein the ionic generator generates detecting ions; the ionic filter is used for generating an electric field so as to prevent non-detected ions from passing and allow detected ions to pass; the ionic detector is used for detecting the ions passing through the ionic filter; the ionic generator is formed by a rectangular metal box which is arranged in a passage of sample gas flow and carrier gas flow, so that the sample gas flow and the carrier gas flow pass from two sides of the rectangular metal box respectively; one side of the rectangular metal box is opened, and the open side faces the sample gas flow; and a spray point is arranged in the metal box, and the sample gas flow is ionized through discharging between the spray point and the metal box. The device can be used for a miniature gas detection device.
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Description

technical field

[0001] The invention relates to trace substance detection technology, in particular to an ionized gas detection device using a high-field asymmetric waveform ion migration filter for ion filtration. Background technique

[0002] In the Second World War, the emergence of highly toxic nerve agents on the battlefield caused a large number of deaths of people and animals. In recent years, with the rampant terrorism, the gas phase detection of explosives, drugs and other substances has become more and more important. As a result, many countries in the world have made every effort to develop and gradually equip advanced biochemical detection equipment for the detection of chemical warfare agents on the ground, in weapons and equipment, in the air, and in water. However, the current detection devices have some disadvantages: huge equipment, high cost, poor mobility, long detection time, etc., which are difficult to meet the practical application. The high-field as...

Claims

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