CN107818909A - Ion mobility spectrometry sampling system - Google Patents
Ion mobility spectrometry sampling system Download PDFInfo
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- CN107818909A CN107818909A CN201710895022.2A CN201710895022A CN107818909A CN 107818909 A CN107818909 A CN 107818909A CN 201710895022 A CN201710895022 A CN 201710895022A CN 107818909 A CN107818909 A CN 107818909A
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- gas
- ion mobility
- mobility spectrometry
- sampling system
- mechanical arm
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/04—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components
- H01J49/0422—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components for gaseous samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/622—Ion mobility spectrometry
Abstract
The present invention relates to a kind of ion mobility spectrometry sampling system, including supporting construction and retractor device.Retractor device is arranged at supporting construction.Retractor device includes the first actuating unit, the second actuating unit, first mechanical arm and second mechanical arm.First dynamic structure is fixedly installed on second mechanical arm.First mechanical arm is rotatablely connected with the first dynamic structure.Second mechanical arm is rotatablely connected with the second actuating unit.Retractor device can drive gas collecting mouth to be moved to different positions to realize the collection to sample in the range of different height, different distance.Meanwhile under the cooperation of the first actuating unit and the second actuating unit, it can realize that gas collecting mouth is moved to the region of relative narrowness with driving mechanical arm so that ion mobility spectrometry sampling system can realize the collection of the gaseous sample for narrow zone.The rotary shaft of first dynamic structure intersects with the rotary shaft of the second dynamic structure so that the rotation process of first mechanical arm and second mechanical arm is more quick, more flexible.
Description
Technical field
The present invention relates to ion mobility spectrometry analysis and safety testing field, more particularly to a kind of ion mobility spectrometry sampling system.
Background technology
Ion mobility spectrometry detection be under atmospheric conditions, in the effect of electric field quick detection and analytic band electrically mutually from
The method of son.Ion transfer spectrum detection method be exactly according to the ionic mobility difference of different material come realize detection sample into
The method divided.Ion transfer spectrum detection method has the advantages that quick, high sensitivity, low-detection lower limit, chemical weapons war agent detection,
Toxic gas is detected and harmful influence detection field is widely used.
The harmful influence scene of the accident often has complex environment.Therefore, when carrying out harmful influence crash analysis, not only to examine
Survey the influence of flue dust, the impurity of thick air of the sampling device in several square centimeters in itself etc., it is also necessary to detect harmful influence thing
Therefore the data in the different height and narrow space at scene.Traditional sample introduction apparatus for ion mobility spectrometry is merely able to fixed range
The interior several square centimeters gases touched carry out detection and put sample, it is difficult to realize that sample is put in the detection to different height gas.
The content of the invention
Based on this, it is necessary to be merely able to for traditional sample introduction apparatus for ion mobility spectrometry to several square centimeters in fixed range
The gas touched carries out the problem of sample is put in detection, there is provided a kind of ion mobility spectrometry sampling system, can realize different height, no
The collection of gaseous sample in the range of same distance.
A kind of ion mobility spectrometry sampling system, including:Supporting construction;Retractor device, the supporting construction is arranged at, it is described
Retractor device includes the first actuating unit, the second actuating unit, first mechanical arm and second mechanical arm, the first mechanical arm with
The first dynamic structure rotation connection, first dynamic structure are fixedly installed on the second mechanical arm, second machine
Tool arm is rotatablely connected with second actuating unit, and the rotary shaft of first dynamic structure turns with second dynamic structure
Moving axis intersects;
Gas collecting mouth, it is arranged at the first mechanical arm;
Gas delivery port, the supporting construction is arranged at, and is connected by conduit with the gas collecting mouth.
In one embodiment, the rotary shaft of first dynamic structure in the horizontal direction, second dynamic structure
Rotary shaft is vertically.
In one embodiment, first dynamic structure and/or second dynamic structure are electric rotating machine.
In one embodiment, first dynamic structure and/or second dynamic structure are Universal rotary runner.
In one embodiment, the ion mobility spectrometry sampling system also includes:
Heater, the heater are arranged between the gas collecting mouth and the gas delivery port by conduit.
In one embodiment, the ion mobility spectrometry sampling system also includes:
Control device, the control device electrically connect with the retractor device, for realizing the control to the retractor device.
In one embodiment, the ion mobility spectrometry sampling system also includes:
Filter, the filter are connected between the gas collecting mouth and the gas delivery port by conduit;
The filter is electrically connected with the control device, and the filter is controlled to gas by the control device
Body carries out filtration treatment.
In one embodiment, the ion mobility spectrometry sampling system also includes:
Gas pumping device, the gas pumping device is connected to the gas collecting mouth by conduit and the filtering fills
Between putting, for controlling the input quantity of gas.
In one embodiment, the ion mobility spectrometry sampling system also includes:
Flow detector, the flow detector are connected to the filter by conduit and exported with the gas
Between mouthful, for measuring sample gas flow rate.
In one embodiment, the control device is electric with the gas pumping device and the flow detector respectively
Connection;Institute is realized by the information transmission between the gas pumping device, the control device and the flow detector
State the closed-loop control of ion mobility spectrometry sampling system.
Ion mobility spectrometry sampling system provided by the invention, including supporting construction and retractor device.Retractor device is arranged at
Supporting construction.Retractor device is connected between gas collecting mouth and gas delivery port by conduit.It is dynamic that retractor device includes first
Force mechanisms, the second actuating unit, first mechanical arm and second mechanical arm.First dynamic structure is fixedly installed on second mechanical arm.
First mechanical arm is rotatablely connected with the first dynamic structure.Second mechanical arm is rotatablely connected with the second actuating unit.Two mechanical arms
Coordinate movement that gas collecting mouth can be driven to be moved to different positions to realize to different height, difference with two actuating units
The collection of sample in distance range.Meanwhile under the cooperation of the first actuating unit and the second actuating unit, can be with driving mechanical arm
Realize that gas collecting mouth is moved to the region of relative narrowness so that ion mobility spectrometry sampling system can be realized for narrow zone
Gaseous sample collection.The rotary shaft of first dynamic structure intersects with the rotary shaft of the second dynamic structure so that the first machinery
Arm and the rotation process of second mechanical arm are more quick, more flexible.
Brief description of the drawings
Fig. 1 is the structural representation of ion mobility spectrometry sampling system described in one embodiment;
Fig. 2 is the sample introduction control principle drawing of ion mobility spectrometry sampling system described in one embodiment.
Drawing reference numeral explanation:
Ion mobility spectrometry sampling system 10
Control system 20
Gas collecting mouth 102
Gas sample delivery outlet 104
Retractor device 200
Supporting construction 201
First actuating unit 211
Second actuating unit 212
First mechanical arm 221
Second mechanical arm 222
Control device 300
Heater 400
Gas pumping device 500
Filter 600
Flow detector 700
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with drawings and Examples pair
The ion mobility spectrometry sampling system of the present invention is further described.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
Referring to Fig. 1, a kind of ion mobility spectrometry sampling system 10 is provided, including:Gas collecting mouth 102, gas delivery port
104 and retractor device 200.Retractor device 200 is connected between gas collecting mouth 102 and gas delivery port 104 by conduit.Stretch
Compression apparatus 200 includes the first actuating unit 211, the second actuating unit 212, first mechanical arm 221 and second mechanical arm 222.The
One mechanical arm 221 is rotatablely connected with the first dynamic structure 211.First dynamic structure 211 is fixedly installed on second mechanical arm 222.
Second mechanical arm 222 is rotatablely connected with the second actuating unit 212.The rotary shaft of first dynamic structure 211 and the second dynamic structure
212 rotary shaft intersects.
Ion mobility spectrometry sampling system 10 can be applied in harmful influence scene of the accident gas sensing, can be loaded to removable
On the relevant devices such as robot, sample (gas of the harmful influence scene of the accident, liquid, solid etc.) is obtained.By sample
Ionic migration spectrometer is sent to be analyzed.Ionic migration spectrometer is realized to sampling sample according to the difference of sample mobility
The detection and analysis of product composition.It is appreciated that ion mobility spectrometry sampling system 10 can be arranged on movable equipment.By removable
The motion of dynamic equipment drives the movement of ion mobility spectrometry sampling system 10.
It is appreciated that gas collecting mouth 102 and gas delivery port 104 are connected by conduit.Specifically, gas collecting mouth
102 can use circular port, embedded grid grid, for filtering out large scale debris.Conduit is used for gas flow guiding.Conduit can use
Thin and flexible tube, hose attachment are arranged on retractor device 200.Gas delivery port 104 will pass through ion mobility spectrometry sampling system
The gas of 10 processing is delivered to ionic migration spectrometer, and gas delivery port 104 can use the replaceable joint of more bores, equipped with sealing
Device.Supporting construction 201 can be with fixed box body or fixed plate, can stablize fixation retractor device 200.
Retractor device 200 is used to complete gas collecting mouth 102 and the active of conduit is oriented to.Retractor device 200 can have
Multiple frees degree.Gas collecting mouth 102 is set can be bundled in the first machine of retractor device 200 with first mechanical arm 221, conduit
Tool arm 221 and second mechanical arm 222.Gas collecting mouth 102 and conduit can be moved to retractor device using retractor device 200
Any position in the range of 200 diameters of axle, realize the collection of different height, different distance sample.Furthermore it is also possible to utilize flexible dress
Put 200 and gas collecting mouth 102 is moved to narrow zone, realize gas in the unapproachable narrow of some large scale equipments
Measurement.
The rotary shaft of first dynamic structure 211 intersects with the rotary shaft of the second dynamic structure 212.It is appreciated that set the
It is to ensure that the multiple degrees of freedom of retractor device 200 rotates that one actuating unit 211 intersects with the rotary shaft of the second actuating unit 212
It is and flexible.First actuating unit 211 drives the rotation of first mechanical arm 221 and flexible, the second actuating unit 212 the second machine of drive
The rotation of tool arm 222 and flexible, ion mobility spectrometry sampling system 10 is set to realize multivariant rotation and flexible.
In the present embodiment, by retractor device 200 gas collecting mouth 102 can be driven to be moved to different positions to realize
Collection to sample in the range of different height, different distance.Meanwhile retractor device 200 can also drive gas collecting mouth 102 to move
Move to the region of relative narrowness so that ion mobility spectrometry sampling system 10 can realize that the gaseous sample for narrow zone is adopted
Collection.By operating retractor device 200 ion mobility spectrometry sampling system 10 can be enable to realize larger range of gas collecting.
In one embodiment, in the horizontal direction, the second dynamic structure 212 turns the rotary shaft of the first dynamic structure 211
Moving axis is vertically.
In the present embodiment, the rotary shaft of the first dynamic structure 211 and the rotary shaft of the second dynamic structure 212 are mutually perpendicular to make
Obtain when realizing axially different rotation, what retractor device 200 can be more stable operates in supporting construction 201.
In one embodiment, the first dynamic structure 211 and/or the second dynamic structure 212 are electric rotating machine.
It is electric rotating machine that the first dynamic structure 211 and the second dynamic structure 212, which can be set, i.e. the first electric rotating machine and
Second electric rotating machine.First mechanical arm 221 is fixed on the first electric rotating machine, second mechanical arm 222 is fixed on the second rotation
Motor.Conduit can be bundled in first mechanical arm 221 and second mechanical arm 222.First electric rotating machine can control retractor device 200
Along origin O1Longitudinal direction rotation.Second electric rotating machine can realize retractor device 200 along with origin O2Vertical vertical axes rotation.
By the regulation to the first electric rotating machine and the second electric rotating machine, gas collecting mouth 102 is moved to by controllable retractor device 200
Any position in the range of its flexible is arrived, and then realize the collection to different height, different distance gas.The present embodiment is only
There is provided two frees degree and two mechanical arms, according to mission requirements, more freedom can be set, to improve retractor device 200
Flexibility.In addition, it can also increase the length of mechanical arm, to realize bigger gas collecting scope.For example, by using longer
Mechanical arm, gas collecting mouth can be moved to narrow zone, realize gas in the unapproachable narrow of movable equipment
Measurement.
In the present embodiment, the space detection model of sample introduction apparatus for ion mobility spectrometry 200 has been expanded in the setting of retractor device 200
Enclose.Guide effect based on retractor device 200 to gas collecting mouth, it can be achieved any in axial, horizontal and vertical certain limit
The measurement of position gas.Retractor device 200 can also set multiple electric rotating machines and multiple mechanical arms to realize more freedom
Gas collecting in larger scope.
In one embodiment, first dynamic structure 211 and/or second dynamic structure 212 are Universal rotary
Wheel.
Universal rotary runner is also known as universal wheel, movable castor.Universal rotary runner is arranged on can on corresponding backing positions
Realize 360 degree of rotations in dynamic load or static load.Such as first actuating unit 211 be arranged to Universal rotary runner.First mechanical arm
221 are movably connected in the first actuating unit 211.Under the drive of the first actuating unit 211, first mechanical arm 221 can be realized
Rotation in the range of 360 degree.
Referring to Fig. 2, in one embodiment, ion mobility spectrometry sampling system 10 also includes:Heater 400.Heating
Device 400 is arranged between gas collecting mouth 102 and gas delivery port 104 by conduit.Heater 400 is close by conduit
Gas collecting mouth 102 is set, to realize the detection for liquid and the solid of certain particle size.
Heater 400 is mainly realized to liquid and the Thermal desorption of the solid sample of certain particle size, reduces gas resistance
Power.Solid and liquid transition can be in a short time the particle of gas by heater 400, realize the inspection to solid and liquid
Survey.Specific heater 400 is arranged near gas collecting mouth 102 by conduit, while can also be arranged on pumping installations
's.So as to realize the detection of the solid or liquid component of certain grain size.
In one embodiment, ion mobility spectrometry sampling system 10 also includes:Control device 300.Control device 300 is with stretching
Compression apparatus 200 electrically connects, for realizing the control to the retractor device 200.
Control device 300 can use FPGA control panels, realize the position control to retractor device 200.Wherein flexible dress
Putting 200 control signals can be inputted by distal end rocking bar, by radio transmitting device input control device 300, and then to retractor device
200 (the first electric rotating machine 211 and the second electric rotating machine 212 and first mechanical arms 221 and second mechanical arm 222) carry out accurate
Control.
In the present embodiment, the setting of control device 300 can make it that the control of retractor device 200 is simpler, conveniently, can
Perform.By setting the control command in control device 300 that the accurate control to retractor device 200 can be achieved.May be used also simultaneously
So that control information is sent into control device 300 by far-end operation, the complicated applied field in the harmful influence scene of the accident is more conformed to
Scape.
In one embodiment, ion mobility spectrometry sampling system 10 also includes:Filter 600.Filter 600 passes through
Conduit is connected between gas collecting mouth 102 and gas delivery port 104.Filter 600 electrically connects with control device 300, leads to
Cross filtering of the control completion of control device 300 to sample introduction.
In the present embodiment, filter 600 can filter out to be caused to ionic migration spectrometer gasmetry precision and measurement effect
The particulate matter of adverse effect, flue dust, impurity etc. so that ion mobility spectrometry can obtain reliably in severe scene of the accident environment
And accurate gasmetry result.Specifically, filter 600 can be the screen pack of physical property, grain is more specifically filtered
Footpath size can be selected according to specific needs.
In one embodiment, filter 600 includes low efficient filter and fine filter.Pass through control device 300
Realize the different control methods to low efficient filter and fine filter.
Flue dust and impurity are filtered out by the way of physical filtering or absorption.Using physical absorption purpose primarily to
Guarantee to filter out impurity and filter medium will not chemically react with purpose gas.Low efficient filter is used for will be from accident
The powder filtering filtration contained in the gas of collection in worksite, and can ensure that and shadow is not caused to the property of object gas in filter process
Ring.Specifically, low efficient filter can select polyethylene terephthalate PET filtering material, to realize the mistake of bulky grain thing impurity
Filter.Fine filter can select activated carbon.Charcoal absorption is also one kind of physical absorption, because charcoal absorption power is universal
It is relatively strong, the filtering of molecular level debris can be realized, it is possible to target detection thing can be adsorbed.Therefore, low efficient filter is preferred,
It can ensure that activated carbon will not can also use activated carbon as fine filter completion to mesh on the premise of adsorbed target gas
The further filtering of gas body.
More specifically, can be designed in filter 600 using binary channel:One path (was slightly imitated for thick effect filtering
Filter), another path is fine filtering (low efficient filter), is switched over a valve therebetween.Specifically, filtering dress
Put 600 start and stop or the multy-way switching of filter 600 and completion is controlled by control device 300.Such as:Filter 600
Start-up and shut-down control, when using the filtering of single path, when such as controlling filtering using low efficient filter, sent by control device 300
Control signal A, low efficient filter are opened;Control signal B is sent by control device 300, low efficient filter is stopped.Filtering
The multy-way switching of device 600, when using binary channel filtering, that is, control signal M is sent, filter 600 switches to bulky grain
Thing filters path, such as uses low efficient filter;Control signal N is sent, filter 600 switches to fine filtering path, such as adopted
Filtered with fine filter.
In the present embodiment, two kinds of filters of design switch over, and complete the double filtration to object gas.It is of course possible to manage
If fine filtering need not be carried out in the environment of the solution harmful influence scene of the accident, unipath can also be selected by control device 300,
Thick effect filtering is directly carried out with regard to completing to put sample.The gas for completing to put sample is sent to ionic migration spectrometer.Double filtration to put
The gas obtained after the completion of sample is purer so that ion mobility spectrometry can be obtained in severe scene of the accident environment it is reliable and
Accurate gasmetry result.
In one embodiment, ion mobility spectrometry sampling system 10 also includes:Gas pumping device 500.Gas pumping dress
Put 500 to be connected between gas collecting mouth 102 and filter 600 by conduit, for controlling the stable input quantity of gas.
Gas pumping device 500 realizes extraction and pumping of the sampling system to gas, is filled in gas collecting mouth 102 and filtering
Between putting 600, gas pumping device 500 is installed between filter 600 and gas delivery port 104, air pump rotating speed can enter line width
Scope accurate adjustment.Specifically, control device 300 can send air pump control signal to gas pumping device 500.Pass through gas
Body pumping installations 500 controls gas flow.Flow instruction is by data input, for example, required sample introduction flow velocity is 300ml/min, then
Control device 300 is by controlling the pump output of gas pumping device 500 so that the gas flow rate of gas delivery port 104 is controlled in institute
Need to be worth.
In the present embodiment, ion mobility spectrometry sampling system 10 also has to Ion transfer using pumping sample introduction
The purging function of spectrum, that is, after being measured, clean gas is pumped into ion mobility spectrometry injection port by sampling device, realizes ion
The purging of mobility spectrometer inner air path and cleaning.
In one embodiment, ion mobility spectrometry sampling system 10 also includes:Flow detector 700.Flow detection fills
Put 700 to be connected between filter 600 and gas delivery port 104 by conduit, for measuring sample gas flow rate.
Flow detector 700 is used to measure sample gas flow rate.Due to being mainly accomplished that gas in osculum diametered duct
Flow measurement, and sampling system is higher to flow control accuracy requirement, thus fax formula mass flowmenter can be used.
In one embodiment, control device 300 is electrically connected with gas pumping device 500 and flow detector 700 respectively
Connect.The ion is realized by the information transmission between gas pumping device 500, control device 300 and flow detector 700
The closed-loop control of migration spectrum sampling system 10.
It is monitored by control device 300, gas pumping device 500 and flow detector 700 and cooperation solves
The problem of gas disturbance that vibration in movable equipment motion process is brought.Specifically, ion mobility spectrometry sampling system 10 is right
Sample introduction gas flow carries out closed-loop control so that the gas flow of sampling device output is remained near setting value, therefore
Outer gas stream disturbance will not impact to sample introduction process.For example, set sample introduction flow as a, if because external disturbance or other
Reason causes gas sampling amount to be less than a, and flow detector 700 detects this change, and the change detected is sent to
Control device 300.Control device 300 sends instruction to gas pumping device 500 according to the degree of sample size reduction and improves air pump
Rotating speed so that sample introduction flow is increased to setting value a;Control mode when making the sample introduction flow be more than a because of disturbance be also it is similar,
This is repeated no more.
In the present embodiment, the gas sampling of exportable constant flow rate:Based on Closed-loop Control Strategy, control device 300 is utilized
The rotating speed of aspiration pump is controlled, and then flow is accurately controlled so that sampling system can provide for ion mobility spectrometry
The gas sampling of required stable flow velocity.
In one embodiment, control device 300, gas pumping device 500, filter 600 and flow detector
700 are all disposed within control system 20.Control system 20 could be arranged to a box body, be subtracted by box body Protection control system 20
It is few to be disturbed by the external world, make the whole usage time of ion mobility spectrometry sampling system 10 longer.
In one embodiment, ion mobility spectrometry sampling system 10 also includes:Power supply.Power supply and ion mobility spectrometry sample introduction system
The electrical connection of system 10, for being powered for ion mobility spectrometry sampling system 10.
It is appreciated that the power supply of ion mobility spectrometry sampling system 10 can be combined with movable equipment and ion mobility spectrometry.
Therefore can be from movable equipment power taking, also can be power autonomous.To ensure the maintainability of ion mobility spectrometry sampling system 10, can
By property and independence, preferentially using power autonomous power supply.Power supply can use lithium battery power supply.
In one embodiment, by taking inflammable and explosive hazardous chemical in-situ measurement as an example, coupled ion migration spectrum sample introduction system
The description of system 10 specifically uses process.
At inflammable and explosive hazardous chemical scene, movable equipment such as robot can be set, supported ionic migration spectrum
Sampling system 10 enters the scene of the accident.On the one hand control device 300 realizes control gas flow, be on the other hand that control ion moves
Move the location of spectrum sampling system 10.Retractor device 200 is adjusted by control device 300 to adjust gas collecting mouth 102
Desired position.Gas pumping device 500 and flow detector 700 is coordinated to set ion mobility spectrometry by control device 300
The flow rate requirement of sampling system 10.Gas pumping device 500 and the synchronous unlatching of flow detector 700, control device 300 receive
Current data on flows, and control instruction is sent to gas pumping device 500, adjust the rotating speed of gas pumping device 500 so that
The gas flow that ion mobility spectrometry sampling system 10 exports reaches sets requirement.Can with replenishment control device to filter two
Kind control method.
In the present embodiment, ion mobility spectrometry sampling system 10 uses modularized design.Ion mobility spectrometry sampling system with from
The movable equipment of sub- migration spectrum detection device and carrying ion mobility spectrometry sampling system is relatively independent.Can be by sample introduction flow velocity
Set, to match the ionic migration spectrometer of different model and different movable equipments.The reserved long-range control of control device 300
Port processed, the Wireless Telecom Equipment carried using movable equipment are controlled in distal end to sample introduction flow velocity and retractor device 200
System.Quick mobile and accurate measurement can be realized using movable equipment carrying ion mobility spectrometry sampling system 10.Control device
300 reserved remote control ports can realize the controlled in wireless to ion mobility spectrometry sampling system 10.Ion mobility spectrometry sample introduction system
System 10 is realized using movable equipment as the horizontal of origin, longitudinal direction and axial a range of gas using retractor device 200
Collection.The flue dust and impurity in sample introduction gas are filtered out using filter 600, and is examined using gas pumping device 500 and flow
Survey device 700, which coordinates, accurately to be controlled sample introduction flow.Ion mobility spectrometry sampling system 10 improves ionic migration spectrometer
Investigative range and detection accuracy.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
- A kind of 1. ion mobility spectrometry sampling system, it is characterised in that including:Supporting construction (201);Retractor device (200), is arranged at the supporting construction (201), and the retractor device (200) includes the first actuating unit (211), the second actuating unit (212), first mechanical arm (221) and second mechanical arm (222), the first mechanical arm (221) It is rotatablely connected with first dynamic structure (211), first dynamic structure (211) is fixedly installed on the second mechanical arm (222), the second mechanical arm (222) is rotatablely connected with second actuating unit (212), first dynamic structure (211) rotary shaft intersects with the rotary shaft of second dynamic structure (212);Gas collecting mouth (102), it is arranged at the first mechanical arm (221);Gas delivery port (104), the supporting construction (201) is arranged at, and by conduit and the gas collecting mouth (102) even It is logical.
- 2. ion mobility spectrometry sampling system as claimed in claim 1, it is characterised in that first dynamic structure (211) In the horizontal direction, the rotary shaft of second dynamic structure (212) is vertically for rotary shaft.
- 3. ion mobility spectrometry sampling system as claimed in claim 1, it is characterised in that first dynamic structure (211) and/ Or second dynamic structure (212) is electric rotating machine.
- 4. ion mobility spectrometry sampling system as claimed in claim 1, it is characterised in that first dynamic structure (211) and/ Or second dynamic structure (212) is Universal rotary runner.
- 5. ion mobility spectrometry sampling system as claimed in claim 1, it is characterised in that also include:Heater (400), the heater (400) are arranged at the gas collecting mouth (102) and the gas by conduit Between body delivery outlet (104).
- 6. ion mobility spectrometry sampling system as claimed in claim 1, it is characterised in that also include:Control device (300), the control device (300) electrically connect with the retractor device (200), are stretched for realizing to described The control of compression apparatus (200).
- 7. ion mobility spectrometry sampling system as claimed in claim 6, it is characterised in that also include:Filter (600), the filter (600) are connected to the gas collecting mouth (102) and the gas by conduit Between body delivery outlet (104);The filter (600) electrically connects with the control device (300), by described in the control device (300) control Filter (600) carries out filtration treatment to gas.
- 8. ion mobility spectrometry sampling system as claimed in claim 6, it is characterised in that also include:Gas pumping device (500), the gas pumping device (500) are connected to the gas collecting mouth (102) by conduit Between the filter (600), for controlling the input quantity of gas.
- 9. ion mobility spectrometry sampling system as claimed in claim 8, it is characterised in that also include:Flow detector (700), the flow detector (700) by conduit be connected to the filter (600) with Between the gas delivery port (104), for measuring sample gas flow rate.
- 10. ion mobility spectrometry sampling system as claimed in claim 9, it is characterised in that the control device (300) respectively with The gas pumping device (500) and the flow detector (700) electrical connection;By the gas pumping device (500), Information transmission between the control device (300) and the flow detector (700) realizes the ion mobility spectrometry sample introduction The closed-loop control of system (10).
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CN110081317A (en) * | 2019-03-18 | 2019-08-02 | 清华大学 | Leak position device and system |
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CN203882421U (en) * | 2014-06-03 | 2014-10-15 | 哈尔滨爱生智能技术开发有限公司 | Harmful gas alarm device suitable for three-dimensional rapid accurate leak detection |
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CN110081317A (en) * | 2019-03-18 | 2019-08-02 | 清华大学 | Leak position device and system |
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