A corona discharge ion source detection method and system

A technology of corona discharge and ion source, applied in the field of ion mobility spectrometry, can solve the problems of easy damage of the device, and achieve the effects of long life, low design cost and simple detection method

Active Publication Date: 2022-01-28
SUZHOU WEIMU INTELLIGENT SYST CO LTD
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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a corona discharge ion source detection method and system to solve the technical problem that the device is easily damaged when the current measurement device is used to detect the discharge phenomenon of the ion source in the prior art

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  • A corona discharge ion source detection method and system
  • A corona discharge ion source detection method and system
  • A corona discharge ion source detection method and system

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Embodiment Construction

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0028] Corona Discharge (Corona Discharge, CD) ion source is a non-radioactive ion source used in ion mobility spectrometer. Corona discharge is a gas discharge phenomenon that can be generated in the atmosphere, and often occurs in a very asymmetric electric field. However, corona discharge ion sources often suffer from corona uncorona due to space cha...

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Abstract

The invention discloses a method and system for detecting the corona state of a corona discharge ion source. The method includes: acquiring discharge sound data when the ion source is discharging; In comparison, judge the corona state of the corona discharge ion source. The method for detecting the corona state of the corona discharge ion source provided by the embodiment of the present invention obtains the discharge sound data when the ion source is discharged through the sound collection device, and compares the discharge sound data with the sound data in the audio library through the audio recognition algorithm , so as to judge the corona state of the corona discharge ion source. Therefore, adopting this detection method does not need to actually measure the high voltage at the ion source, and does not need to use the existing current measuring device, the design cost is low, the detection method is simple, and it solves the problem of the discharge phenomenon of the ion source detected by the current measuring device in the prior art. Technical problems with fragile devices.

Description

technical field [0001] The invention relates to the technical field of ion mobility spectrometry, in particular to a detection method and system for a corona discharge ion source. Background technique [0002] At present, ion mobility spectrometry has become one of the important methods for the detection of trace chemical substances in the field of analysis. Ion mobility spectrometry technology does not require a vacuum environment and can work directly under normal pressure. The power requirement is low and the detection speed is fast, so it is easy to make a small and portable instrument, which is especially suitable for on-site real-time detection and online real-time analysis. [0003] The most widely used ion sources in existing ion mobility spectrometers mainly include β-rays. 63 Ni source and other radioactive sources. However, when the radioactive source is used as the ion source, the concentration of ions produced is not high enough, resulting in a weak signal and...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/12
CPCG01R31/1209
Inventor 沈沐曈董瀚泽程慧敏李鹏
Owner SUZHOU WEIMU INTELLIGENT SYST CO LTD
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