CN206274506U - Ionic migration spectrometer - Google Patents
Ionic migration spectrometer Download PDFInfo
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- CN206274506U CN206274506U CN201621438614.9U CN201621438614U CN206274506U CN 206274506 U CN206274506 U CN 206274506U CN 201621438614 U CN201621438614 U CN 201621438614U CN 206274506 U CN206274506 U CN 206274506U
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- migration
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Abstract
Present disclose provides a kind of ionic migration spectrometer.The ionic migration spectrometer includes：Power circuit, for providing supply voltage；Corona discharge structure, its input is connected to the power circuit, and measured ion is treated for being produced by corona discharge；Ion transfer circuit, is connected to the power circuit, for controlling Ion transfer；Migration plot structure, is connected to the Ion transfer circuit, for realizing the measurement to the migration spectrum for treating measured ion passed through from the migration plot structure under the control of the Ion transfer circuit；Excess charge extraction electrode, is arranged between the corona discharge structure and the migration plot structure so that what the corona discharge structure was produced treats that measured ion can pass through therefrom, so as to reach the migration plot structure；Excess charge draws circuit, is connected to the power circuit, the input of the corona discharge structure, the migration plot structure and the excess charge extraction electrode, wherein, the excess charge extraction electrode draws circuit ground by the excess charge.
Description
Technical field
This disclosure relates to ionic spectrum fields of measurement, more particularly to a kind of ionic migration spectrometer.
Background technology
Ionic migration spectrometer is according to different ions in the Weak Uniform Electromagnetic different resolutions realized to ion of drift velocity off field.Cause
For ionic migration spectrometer is differentiated, speed is fast, and sensitivity is high, it is not necessary to vacuum environment and be easy to miniaturization, so in such as drugs
Multiple fields with explosive detection are widely used.
Typical ionic migration spectrometer is generally by sample introduction part, ionization part, ion gate, migration area, collecting region, reading electricity
Road, data acquisition and processing (DAP) part, control unit grade part composition.Wherein, ionization part major function is to turn sample molecule
Chemical conversion is available for the ion of transport, and the effect of its ionization has very directly influence on the performance of ionic migration spectrometer.
In order to realize more preferable ionization performance, a kind of ionic migration spectrometer ionized using corona discharge has been obtained
Using.Corona discharge is referred in the non-uniform electric field of space because local highfield causes one kind that gas molecule is ionized to show
As.The ion that corona discharge is directly produced is commonly referred to as reactant ion.When the sample with proton or electron affinity higher
When product molecule passes through ionized region, will be ionized by the electric charge of capture reaction thing ion.Common corona discharge structure is simple
And it is with low cost, and concentration of electric charges higher can be produced, therefore, significantly improve ionic migration spectrometer sensitivity and
Dynamic range.
However, the concentration of electric charges high that corona discharge is produced also requires that ionic migration spectrometer to the collection of electric charge and treatment more
Adduction is managed, and can otherwise have a strong impact on the stability of equipment.How stability higher Ion transfer based on corona discharge is realized
Spectrometer is one of this area problem demanding prompt solution.
Utility model content
In order to solve the above-mentioned problems in the prior art, the present disclosure proposes a kind of ionic migration spectrometer.
According to an aspect of this disclosure, it is proposed that a kind of ionic migration spectrometer, including：Power circuit, for providing electricity
Source voltage；Corona discharge structure, its input is connected to the power circuit, and measured ion is treated for being produced by corona discharge；
Ion transfer circuit, is connected to the power circuit, for controlling Ion transfer；Migration plot structure, is connected to the ion and moves
Shift circuit, for realizing under the control of the Ion transfer circuit treating measured ion to what is passed through from the migration plot structure
Migrate the measurement of spectrum；Excess charge extraction electrode, is arranged between the corona discharge structure and the migration plot structure so that
What the corona discharge structure was produced treats that measured ion can pass through therefrom, so as to reach the migration plot structure；Excess charge
Circuit is drawn, the power circuit, the input of the corona discharge structure, the migration plot structure and described unnecessary is connected to
Electric charge extraction electrode, wherein, the excess charge extraction electrode draws circuit ground by the excess charge.
In one embodiment, the excess charge draw circuit include the first sectional pressure element, the second sectional pressure element and every
Straight electric capacity, wherein, one end of first sectional pressure element is connected to the defeated of the power circuit and the corona discharge structure
Enter end, the other end is connected to first node, and one end of second sectional pressure element is connected to the first node, other end connection
To the migration plot structure, one end of the capacitance connects the first node, other end ground connection, and the unnecessary electricity
Lotus draws circuit and is connected at the first node with the excess charge extraction electrode.
In one embodiment, the corona discharge structure includes corona pin and electric discharge cylinder, wherein, the one of the corona pin
Hold as the input of the corona discharge structure, the other end treats measured ion by generation of discharging, and the electric discharge cylinder is arranged to
The corona pin surrounding laterally around the other end of the corona pin.
In one embodiment, the excess charge draws circuit also with the electric discharge cylinder of the corona discharge structure second
Be connected at node, the excess charge draw circuit include the first sectional pressure element, the second sectional pressure element, the 3rd sectional pressure element,
First capacitance and the second capacitance, wherein, one end of first sectional pressure element be connected to the power circuit and
The input of the corona discharge structure, the other end is connected to the Section Point, one end connection of second sectional pressure element
To first node, the other end is connected to the migration plot structure, and the 3rd sectional pressure element is connected to the first node and institute
State between Section Point；One end of first capacitance connects the first node, other end ground connection, second blocking
One end of electric capacity connects the Section Point, and other end ground connection, and the excess charge draws circuit and the excess charge
Extraction electrode is connected at the first node.
In one embodiment, it is described migration plot structure include be sequentially arranged from input to output end storage ring, from
Cervical orifice of uterus, multiple migration field plate pieces, suppressor and Faraday plate, wherein, one end of the storage ring, first migration field plate
One end of one end of piece and last migration field plate piece connects from the Ion transfer circuit at different nodes respectively
Connect, the other end of first migration field plate piece is connected to multiple resistance of series connection, and the quantity of the multiple resistance is more with described
The quantity of individual migration field plate piece is identical, and the multiple other end for migrating field plate piece is connected to the multiple correspondingly
The first end of resistance, the last resistor in the multiple resistance is drawn circuit and is connected with the excess charge.
In one embodiment, the Ion transfer circuit is in the one end with the storage ring, first migration field plate
Different potentials are produced respectively at the node that one end of one end of piece and last migration field plate piece connects respectively.
In one embodiment, the power circuit includes power supply, first resistor and the 3rd capacitance, wherein, it is described
One end of power supply is connected to the Ion transfer circuit, and the other end connects one end of the first resistor, the first resistor
One end is connected to the power supply, and the other end connects the input of one end and the corona discharge structure of the 3rd capacitance
End, one end of the 3rd capacitance connects the first resistor, other end ground connection.
In one embodiment, first sectional pressure element and the second sectional pressure element are resistance.
In one embodiment, the 3rd sectional pressure element is resistance or voltage-regulator diode.
The ionic migration spectrometer based on corona discharge proposed by using the disclosure, can eliminate to ion mobility spectrometry
Produce dysgenic excess charge.Thus, produced ion mobility spectrometry is accurate and stable, above-described so as to solve
The problems of the prior art.
Brief description of the drawings
Fig. 1 shows a kind of schematic diagram of the ionic migration spectrometer based on corona discharge；
Fig. 2 shows the structure chart of the ionic migration spectrometer based on corona discharge shown in Fig. 1；
Fig. 3 shows the structure chart of the ionic migration spectrometer based on corona discharge in accordance with an embodiment of the present disclosure；
Fig. 4 shows the schematic diagram of the detailed construction of the ionic migration spectrometer based on corona discharge shown in Fig. 3；
Fig. 5 shows the schematic diagram of the detailed construction of the ionic migration spectrometer based on corona discharge shown in Fig. 3；
Fig. 6 shows the ion transfer spectrogram measured by the ionic migration spectrometer based on corona discharge shown in Fig. 1；With
And
Fig. 7 is shown by the ionic migration spectrometer based on corona discharge in accordance with an embodiment of the present disclosure shown in Fig. 3
The ion transfer spectrogram for measuring.
Specific embodiment
The specific embodiment of the disclosure is described more fully below, it should be noted that the embodiments described herein is served only for citing
Illustrate, be not limited to the disclosure.In the following description, in order to provide thorough understanding of this disclosure, a large amount of spies are elaborated
Determine details.It will be apparent, however, to one skilled in the art that：This public affairs need not be carried out using these specific details
Open.In other instances, in order to avoid obscuring the disclosure, known circuit, material or method are not specifically described.
Throughout the specification, meaning is referred to " one embodiment ", " embodiment ", " example " or " example "
：Special characteristic, structure or the characteristic described with reference to the embodiment or example are comprised in the embodiment of the disclosure at least one.
Therefore, phrase " in one embodiment ", " in embodiment ", " example " for occurring in each place of entire disclosure
Or " example " is not necessarily all referring to same embodiment or example.Furthermore, it is possible to will be specific with any appropriate combination and/or sub-portfolio
Feature, structure or property combination in one or more embodiments or example.Additionally, those of ordinary skill in the art should manage
Solution, accompanying drawing is provided to descriptive purpose provided herein, and accompanying drawing is not necessarily drawn to scale.Art used herein
Language "and/or" includes any and all combination of the project that one or more correlations are listed.
The disclosure is specifically described below with reference to accompanying drawing.
First, Fig. 1 shows a kind of schematic diagram of the ionic migration spectrometer based on corona discharge.In Fig. 1, corona pin
The charged particle line focus pole 202 that 201 electric discharges are produced enters into storage ring 204 after focusing on through corona cylinder 203, afterwards in ion
The ion drift area being made up of electrode slice 207, inhibited grid are injected into special time under the control of the electric field of door 205,206
Received by Faraday plate 209 after 208 regulations, and be changed into electric signal through charge-sensitive integrating amplification circuit after and enter into signal
Processing system.
Fig. 2 is the corona discharge ionization mobility spectrometer organigram in Fig. 1.In fig. 2, corona discharge structure is produced
Electric charge is moved under electric field and sample introduction air-flow collective effect to storage ring.Now, there will be more ionic bombardment to corona discharge
1041 and storage ring MG1 of cylinder.Corona discharge cylinder 1041 is directly connected with storage ring MG1 with Ion transfer circuit, so that they
The ion for receiving into Ion transfer circuit, and will have undesirable effect to Ion transfer circuit, so as to influence Ion transfer
The stability of spectrum.The Ion transfer spectral line that ionic migration spectrometer according to Fig. 1 is measured is as shown in Figure 6.
In fig. 3 it is shown that the structure chart of the ionic migration spectrometer 300 of one embodiment according to the disclosure.
As shown in figure 3, ionic migration spectrometer 300 includes power circuit 310, Ion transfer circuit 320, migration plot structure
330th, corona discharge structure 340, excess charge extraction electrode 350 and excess charge draw circuit 360.Wherein, corona discharge knot
The ion that structure 340 is produced by corona discharge, successively through excess charge extraction electrode 350 (such as, ring of the centre with opening
Shape) and the migration plot structure 330 of charge shift path is formed, so as to realize moving the ion by migration plot structure 330
Move spectrometry.The setting that excess charge extraction electrode 350 and excess charge draw circuit 360 causes the unnecessary of corona discharge generation
The electric charge of ion is absorbed, so that influence will not be produced on Ion transfer circuit 320.
Specifically, power circuit 310 is used to provide supply voltage.
Ion transfer circuit 320 is connected to power circuit, for controlling Ion transfer.
Migration plot structure 330 is connected to Ion transfer circuit 320, for being realized under the control of Ion transfer circuit 320
The measurement of the migration spectrum for treating measured ion to passing through from migration plot structure 330.The input of corona discharge structure 340 is connected to
Power circuit 310, measured ion is treated for being produced by corona discharge.
Excess charge extraction electrode 350 is arranged between corona discharge structure 340 and migration plot structure 330 so that corona
What discharging structure 340 was produced treats that measured ion can pass through (through the opening (ratio for being formed thereon in the presence of electric field therefrom
Such as, annular distance)), so as to reach migration plot structure 330.
Excess charge is drawn circuit 360 and is connected to power circuit 310, the input of corona discharge structure 340, migration area knot
Structure 330 and excess charge extraction electrode 350.
Additionally, excess charge draws circuit 360 has earth terminal, and excess charge extraction electrode 350 by being connected
Excess charge draw circuit 360 be grounded.
Fig. 4 shows the schematic diagram of the detailed construction 400 of the ionic migration spectrometer 300 based on corona discharge shown in Fig. 3.
As shown in figure 4, corona discharge structure 240 includes corona pin 340-1 and electric discharge cylinder 340-2, wherein, corona pin 340-
1 one end is connected as the input of corona discharge structure 340 with power circuit 310, the other end by discharge produce it is to be measured from
Son, electric discharge cylinder 340-2 is arranged in the surrounding of corona pin 340-1 laterally around the other end of corona pin 340-1.
In one embodiment, migration plot structure 330 include from input to output end (i.e., in figure from top to bottom) according to
The storage ring MG1 of secondary arrangement, ion gate, the individual migration field plate piece FG1 to HVE of n (positive integer), suppressor (not shown) and farad
Disk FAR.Wherein, one end of storage ring MG1, first one end for migrating field plate piece FG1 and last migration field electricity
One end of pole piece HVE connected at different nodes from Ion transfer circuit 320 respectively (in such as Fig. 4, Ion transfer circuit 320
Three tie points shown in right side).The other end of first migration field plate piece FG1 is connected to n resistance R1-Rn of series connection.
It can be seen that, the quantity of resistance is identical with the quantity of migration field plate piece.The other end of n migration field plate piece is connected correspondingly
To the n first end of resistance.Last resistor Rn in n resistance draws circuit 360 and is connected with excess charge.
Ion transfer circuit 320 is migrating field plate piece FG1 and last migration field with storage ring MG1, first
Different potentials are produced at the node that electrode slice HVE is connected respectively respectively.So as to according to migration plot structure 330 as described above
Concrete structure, wherein continuous electric field will be produced by ion guide Faraday plate FAR.
As shown in figure 4, excess charge draws circuit 360 includes the first sectional pressure element E1, the second sectional pressure element E2 and blocking
Electric capacity C.
One end of first sectional pressure element E1 is connected to the input of power circuit 310 and corona discharge structure 340, the other end
It is connected to first node N.
One end of second sectional pressure element E2 is connected to first node N, and the other end is connected to migration plot structure 330.
In one embodiment, the first sectional pressure element E1 and the second sectional pressure element E2 are resistance.
Specific voltage dividing ability is set (such as, when they are by for the first sectional pressure element E1 and the second sectional pressure element E2
During resistance, specific resistance is set), enable to the excess charge extraction electrode 350 being connected with first node N to have specific
Potential, so that the ion produced at corona discharge structure 340 can be moved down under electric field action, through excess charge
Extraction electrode 350, into migration plot structure 340.
In one embodiment, by the voltage dividing ability of setting the first sectional pressure element E1 and the second sectional pressure element E2 so that
The electrical potential difference between storage ring MG1 in excess charge extraction electrode 350 and migration plot structure 330 is between 60 to 70 volts.
One end connection first node N of capacitance C, other end ground connection GND.
It can be seen that excess charge draws circuit 360 being connected at first node N with excess charge extraction electrode 350
Connect.Excess charge extraction electrode 350 is via first node N and capacitance C ground connection GND.So as to clash into excess charge and draw electricity
The electric charge of pole 350 can be absorbed.
It is pointed out that the concrete structure shown in Fig. 4 is the exemplary theory of ionic migration spectrometer of this disclosure
Bright, the ionic migration spectrometer of the disclosure is not limited by detail above.It will be appreciated to those of skill in the art that by this
Excess charge extraction electrode 350 and excess charge draw the setting of circuit 360 in open so that many in existing ionic migration spectrometer
Influence of the remaining electric charge to spectrogram can be eliminated or suppressed.It will be appreciated that what is proposed in the disclosure draws with excess charge
Electrode 350 and excess charge draw circuit 360 set can be applied to any corona discharge influenceed by excess charge from
Sub- mobility spectrometer.
Additionally, in fig. 4, Ion transfer circuit 320 and migration plot structure 330 also are shown as into ground connection.But it is understood that
It is that in other embodiments, Ion transfer circuit 320 and migration plot structure 330 can be connected with other certain electrical potentials, or not set
Put this grounding connection.
Fig. 5 shows the schematic diagram of the detailed construction 500 of the ionic migration spectrometer 300 based on corona discharge shown in Fig. 3.
Compared with the detailed construction 400 of Fig. 4, excess charge draws the structure of circuit 360 and power circuit 310 to the detailed construction 500 of Fig. 5
It is different.Skilled artisans appreciate that being the structure of circuit 360 and power circuit 310 will to be drawn to excess charge
Improvement be included in the embodiment shown in Fig. 5, only to facilitate description.The scope of the present disclosure is likewise covered by simply to many
The structure of remaining electric charge extraction circuit 360 or power circuit 310 makes the improved embodiment shown in Fig. 5.
Excess charge shown in Fig. 5 draws circuit 360 with the electric discharge cylinder 340-2 of corona discharge structure 340 in Section Point M
Place is connected.
Excess charge draw circuit 360 include the first sectional pressure element E1, the second sectional pressure element E2, the 3rd sectional pressure element E3,
First capacitance C1 and the second capacitance C2.
Wherein, one end of the first sectional pressure element E1 is connected to the input of power circuit 310 and corona discharge structure 340
End, the other end is connected to Section Point M.
One end of second sectional pressure element E2 is connected to first node N, and the other end is connected to migration plot structure 330.
3rd sectional pressure element E3 is connected between first node N and Section Point M.In one embodiment, the 3rd partial pressure
Element E3 is resistance or voltage-regulator diode.
One end connection first node N of the first capacitance C1, other end ground connection GND.
One end connection Section Point M of the second capacitance C2, other end ground connection GND.
Equally, excess charge is drawn circuit 360 and is connected at first node N with excess charge extraction electrode 350.
In the structure 500 shown in Fig. 5, the electric discharge cylinder 340-2 of corona discharge structure 340 connects via the second capacitance C2
Ground GND, so that, the excess charge page produced at electric discharge cylinder 340-2 can be absorbed, so as to prevent the electric charge for accumulating thereon to whole
The Potential Distributing of individual equipment produces influence, and then preferably improves the performance of equipment.
By for the first sectional pressure element E1, the second sectional pressure element E2 and the 3rd sectional pressure element E3, specific voltage dividing ability is set
(such as, when they are resistance, setting specific resistance), enables to the excess charge being connected with first node N to draw electricity
Pole 350 and the electric discharge cylinder 340-2 being connected with Section Point M have specific potential, so that corona discharge structure 340
The ion for locating to produce can be moved down under electric field action, through excess charge extraction electrode 350, into migration plot structure
340。
In one embodiment, by setting the first sectional pressure element E1, the second sectional pressure element E2 and the 3rd sectional pressure element E3
Voltage dividing ability so that excess charge extraction electrode 350 and migration plot structure 330 in storage ring MG1 between electrical potential difference exist
Between 60 to 70 volts, the electrical potential difference between electric discharge cylinder 340-2 and excess charge extraction electrode 350 is also between 60 to 70 volts.This
Outward, the electrical potential difference of 2000-3000 volts can be also set between corona pin 340-1 and electric discharge cylinder 340-2.
In Figure 5, power circuit 310 includes power supply, first resistor R and the 3rd capacitance C3.Wherein, one end of power supply
It is connected to Ion transfer circuit 320, one end of other end connection first resistor R.One end of first resistor R is connected to power supply, separately
One end connects one end of the 3rd capacitance C3 and the input of corona discharge structure 340.One end of 3rd capacitance C3 connects
Meet first resistor R, other end ground connection GND.First resistor R and the 3rd capacitance C3 are arranged such that the voltage warp that power supply applies
Filtering ripple voltage division processing.
Fig. 6 and Fig. 7 are respectively illustrated the ion measured by the ionic migration spectrometer based on corona discharge shown in Fig. 1 and moved
Move spectrogram and measured by the ionic migration spectrometer 300 based on corona discharge in accordance with an embodiment of the present disclosure shown in Fig. 3
Ion transfer spectrogram.It can be seen that more being stablized by the ion mobility spectrometry measured by ionic migration spectrometer 300.
Detailed description above has elaborated numerous embodiments by using schematic diagram, flow chart and/or example.
In the case that this schematic diagram, flow chart and/or example are comprising one or more functions and/or operation, those skilled in the art
It should be understood that each function in this schematic diagram, flow chart or example and/or operation can be by various structures, hardware, soft
Part, firmware or substantial their any combination to realize individually and/or jointly.In one embodiment, the implementation of the disclosure
If the stem portion of the example theme can be by application specific integrated circuit (ASIC), field programmable gate array (FPGA), numeral letter
Number processor (DSP) or other integrated forms are realized.However, those skilled in the art will appreciate that reality disclosed herein
Applying some aspects of example can equally realize in integrated circuits, being embodied as being counted at one or more on the whole or partly
One or more computer programs run on calculation machine are (for example, be embodied as run in one or more computer system
Individual or multiple programs), one or more programs run on the one or more processors are embodied as (for example, being embodied as one
One or more programs run on individual or multi-microprocessor), it is embodied as firmware, or be substantially embodied as aforesaid way
Any combination, and those skilled in the art are according to the disclosure, will be provided with design circuit and/or write-in software and/or firmware generation
The ability of code.Additionally, it would be recognized by those skilled in the art that the mechanism of theme described in the disclosure can be used as the journey of diversified forms
Sequence product is distributed, and regardless of the particular type of the actual signal bearing medium for being used for and performing distribution, disclosure institute
The exemplary embodiment for stating theme is applicable.The example of signal bearing medium is included but is not limited to：Recordable-type media, it is such as soft
Disk, hard disk drive, compact-disc (CD), digital universal disc (DVD), digital magnetic tape, computer storage etc.；And mode transmission is situated between
Matter, such as numeral and/or analogue communication medium (for example, optical fiber cable, waveguide, wired communications links, wireless communication link).
Although exemplary embodiment describing the disclosure with reference to several, it is to be understood that, term used is to illustrate and show
Example property and nonrestrictive term.Because the disclosure can be embodied without deviating from disclosed spirit or real in a variety of forms
Matter, it should therefore be appreciated that above-described embodiment is not limited to any foregoing details, and the spirit that should be limited in appended claims
Widely explained with scope, therefore the whole fallen into claim or its equivalent scope changes and remodeling all should be the power of enclosing
Profit requires to be covered.
Claims (9)
1. a kind of ionic migration spectrometer, it is characterised in that including：
Power circuit, for providing supply voltage；
Corona discharge structure, its input is connected to the power circuit, and measured ion is treated for being produced by corona discharge；
Ion transfer circuit, is connected to the power circuit, for controlling Ion transfer；
Migration plot structure, be connected to the Ion transfer circuit, for realized under the control of the Ion transfer circuit to from
That passes through in the migration plot structure treats the measurement of the migration spectrum of measured ion；
Excess charge extraction electrode, is arranged between the corona discharge structure and the migration plot structure so that the corona
What discharging structure was produced treats that measured ion can pass through therefrom, so as to reach the migration plot structure；
Excess charge draws circuit, is connected to the power circuit, the input of the corona discharge structure, the migration area knot
Structure and the excess charge extraction electrode,
Wherein, the excess charge extraction electrode draws circuit ground by the excess charge.
2. ionic migration spectrometer according to claim 1, it is characterised in that the excess charge draws circuit includes first
Sectional pressure element, the second sectional pressure element and capacitance, wherein,
One end of first sectional pressure element is connected to the input of the power circuit and the corona discharge structure, another
End is connected to first node,
One end of second sectional pressure element is connected to the first node, and the other end is connected to the migration plot structure,
One end of the capacitance connects the first node, and the other end is grounded, and
The excess charge is drawn circuit and is connected at the first node with the excess charge extraction electrode.
3. ionic migration spectrometer according to claim 1, it is characterised in that the corona discharge structure include corona pin and
Electric discharge cylinder, wherein,
One end of the corona pin as the corona discharge structure input, the other end treats measured ion by generation of discharging,
The electric discharge cylinder is arranged in the surrounding of the corona pin laterally around the other end of the corona pin.
4. ionic migration spectrometer according to claim 3, it is characterised in that the excess charge draw circuit also with it is described
The electric discharge cylinder of corona discharge structure is connected at Section Point, the excess charge draw circuit include the first sectional pressure element,
Second sectional pressure element, the 3rd sectional pressure element, the first capacitance and the second capacitance, wherein,
One end of first sectional pressure element is connected to the input of the power circuit and the corona discharge structure, another
End is connected to the Section Point,
One end of second sectional pressure element is connected to first node, and the other end is connected to the migration plot structure,
3rd sectional pressure element is connected between the first node and the Section Point；
One end of first capacitance connects the first node, and the other end is grounded,
One end of second capacitance connects the Section Point, and the other end is grounded, and
The excess charge is drawn circuit and is connected at the first node with the excess charge extraction electrode.
5. ionic migration spectrometer according to claim 1, it is characterised in that the migration plot structure include from input to
Storage ring, ion gate, multiple migration field plate pieces, suppressor and Faraday plate that output end is sequentially arranged,
Wherein, one end of the storage ring, one end of first migration field plate piece and last migration field plate piece
One end connects from the Ion transfer circuit at different nodes respectively,
The other end of first migration field plate piece is connected to multiple resistance of series connection, and the quantity of the multiple resistance is more with described
The quantity of individual migration field plate piece is identical,
The other end of the multiple migration field plate piece is connected to the first end of the multiple resistance correspondingly,
Last resistor in the multiple resistance is drawn circuit and is connected with the excess charge.
6. ionic migration spectrometer according to claim 5, it is characterised in that the Ion transfer circuit with the storage
The node that one end of ring, one end and last one end for migrating field plate piece of first migration field plate piece connect respectively
Place produces different potentials respectively.
7. ionic migration spectrometer according to claim 1, it is characterised in that the power circuit includes power supply, the first electricity
Resistance and the 3rd capacitance, wherein,
One end of the power supply is connected to the Ion transfer circuit, and the other end connects one end of the first resistor,
One end of the first resistor is connected to the power supply, and the other end connects one end of the 3rd capacitance and the electricity
The input of corona structure,
One end of 3rd capacitance connects the first resistor, other end ground connection.
8. the ionic migration spectrometer according to claim 2 or 4, it is characterised in that first sectional pressure element and second point
Pressure element is resistance.
9. ionic migration spectrometer according to claim 4, it is characterised in that the 3rd sectional pressure element is resistance or voltage stabilizing
Diode.
Priority Applications (1)
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|---|---|---|---|
| CN201621438614.9U CN206274506U (en) | 2016-12-26 | 2016-12-26 | Ionic migration spectrometer |
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| CN201621438614.9U CN206274506U (en) | 2016-12-26 | 2016-12-26 | Ionic migration spectrometer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783504A (en) * | 2016-12-26 | 2017-05-31 | 同方威视技术股份有限公司 | Ionic migration spectrometer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783504A (en) * | 2016-12-26 | 2017-05-31 | 同方威视技术股份有限公司 | Ionic migration spectrometer |
| US10276359B2 (en) | 2016-12-26 | 2019-04-30 | Nuctech Company Limited | Ion mobility spectrometer |
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