Ion transfer tube signal extraction circuit, method and ion transfer detector
An ion transfer tube and signal extraction technology, applied in the field of substance detection, can solve problems such as high manufacturing difficulty, and achieve the effects of simple internal structure, low design and manufacturing difficulty, and easy digitization and subsequent processing.
Active Publication Date: 2016-03-30
NUCTECH CO LTD +1
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Problems solved by technology
It solves the technical problem that the design and manufacture of the lead-out circuit of the pulsating voltage on the Faraday disk in the prior art are relatively difficult
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Embodiment Construction
[0042] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.
[0043] The embodiment of the present invention provides an ion transfer tube signal extraction circuit with simple structure and low cost, an ion transfer detector provided with the ion transfer tube signal extraction circuit, and an ion transfer tube signal extraction circuit used in the ion transfer tube signal extraction circuit. method.
[0044] Such as figure 1 As shown, the ion transfer tube signal extraction circuit provided by the embodiment of the present invention includes a DC blocking communication module 1 provided with a signal input terminal In and a signal output terminal Out.
[0045] The signal input terminal In and such as figure 2 or as image 3 The Faraday disk 21 inside the shown ion transfer tube 2 is electrically connected.
[0046] The DC blocking communication module 1 is used to remove the...
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Abstract
The embodiment of the present invention relates to an ion transfer tube signal extraction circuit, method and ion transfer detector, relates to the technical field of material detection, and solves the relatively difficult technology in the design and manufacture of the lead-out circuit of the pulsating voltage on the Faraday disk in the prior art question. The ion transfer tube signal extraction circuit includes a DC blocking module, which is used to remove the DC voltage in the voltage drawn from the Faraday disk by the signal input terminal, and to remove the DC voltage from the voltage drawn from the Faraday disk by the signal input terminal. The pulsating voltage is output from the signal terminal. The ion migration detector includes the ion migration tube signal extraction circuit provided by the present invention. The ion transfer tube signal extraction method includes: extracting the voltage on the Faraday disk in the ion transfer tube; removing the DC voltage in the voltage drawn from the Faraday disc, and outputting the pulsating voltage in the voltage drawn from the Faraday disc. The invention is used to extract the pulsating voltage on the Faraday disk.
Description
technical field [0001] The invention relates to the technical field of substance detection, and in particular to an ion transfer tube signal extraction circuit, an ion transfer tube signal extraction method, and an ion transfer detector provided with the ion transfer tube signal extraction circuit and applying the ion transfer tube signal extraction method. Background technique [0002] The use of various new technologies to detect the types and types of unknown substances has great practical value. For example, in the current security inspection market, the use of ion migration technology can detect dangerous goods (such as explosives, drugs), and then prevent dangerous goods from entering the public. place. [0003] At present, ion mobility detectors (or ion mobility spectrometers) that use ion mobility technology to detect dangerous goods are divided into positive mode ion mobility detectors that detect positive ions, and negative ion mobility detectors that detect negati...
Claims
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IPC IPC(8): H01J49/02H01J49/26G01N27/62G01N27/622
CPCG01N27/622H01J49/022H01J49/025
Inventor 张清军陈志强李元景赵自然刘以农曹士娉邹湘李祥华常建平董淑强郑严
Owner NUCTECH CO LTD