CN205810758U - Be suitable to the ion source vacuum interconnection self-locking system of time of-flight mass spectrometer - Google Patents
Be suitable to the ion source vacuum interconnection self-locking system of time of-flight mass spectrometer Download PDFInfo
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- CN205810758U CN205810758U CN201620704800.6U CN201620704800U CN205810758U CN 205810758 U CN205810758 U CN 205810758U CN 201620704800 U CN201620704800 U CN 201620704800U CN 205810758 U CN205810758 U CN 205810758U
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Abstract
The utility model discloses a kind of ion source vacuum interconnection self-locking system being suitable to time of-flight mass spectrometer, including microprocessor, hatch door status switch, the control circuit being made up of the first vacuum electromagnetic valve controling circuit, the second vacuum electromagnetic valve controling circuit, the 3rd vacuum electromagnetic valve controling circuit；The high potential contact of described hatch door status switch is connected with DC source VCC, and resistance R1 ground connection is passed through in the electronegative potential contact of hatch door status switch.This utility model advantage is to solve the duty problem of external noise interference vacuum solenoid, has stopped the software maloperation to vacuum solenoid.Guaranteeing that when hatch door is not closed, all vacuum solenoids all remain closed, three vacuum solenoids cannot have two valves to be opened simultaneously, if having, three vacuum solenoids are closed at protecting vacuum；Vacuum safety when drastically increasing Matrix Assisted Laser Desorption ionization time-of-flight mass spectrometer ion source turnover target.
Description
Technical field
This utility model relates to time of-flight mass spectrometer, especially relates to be suitable to the ion source vacuum of time of-flight mass spectrometer
Interconnection self-locking system.
Background technology
Time of-flight mass spectrometer is a kind of novel soft ionization biological mass spectrometry, and instrument is mainly made up of two parts: substrate is auxiliary
Help laser desorption ionisation ion source (MALDI) and time of flight mass analyzer (TOF).Ion during time of-flight mass spectrometer work
High vacuum state (10 it is in inside source-7Mbar), the highest vacuum to be reached need to take out with " mechanical pump+molecular pump " series connection
Gas.Sample target normally works in ion source vacuum cavity inside, sample target exits in cavity, sample target is externally entering cavity
Interior these three work process, all needs the hatch door state monitoring switch of ion source vacuum cavity and three vacuum solenoids cooperations to cut
Change, sample target just can be made to pass in and out in the inside and outside smooth transition of ion source vacuum cavity.Time of-flight mass spectrometer ion source vacuum system
As it is shown in figure 1, mainly include mechanical pump 1, molecular pump 2, sample target 3, hatch door the 4, first vacuum solenoid the 5, second vacuum electromagnetic
Valve the 6, the 3rd vacuum solenoid 7, hatch door status switch 8.Mechanical pump 1 and molecular pump 2 are serially connected with cavity 9, in molecular pump 2 gas outlet
Place is provided with the first vacuum solenoid 5 to control gas path on-off between molecular pump 2 and mechanical pump 1；Mechanical pump 1 is to ion source cavity
The flow process of 9 evacuation is first to open the first vacuum solenoid 5, extracts the air in cavity 9 with mechanical pump 1, when vacuum in cavity 9
Degree reaches 10-2Open molecular pump 2 during the mbar order of magnitude, concatenate vacuum in the mode of molecular pump 2 makes cavity 9 with mechanical pump 1 and reach
To 10-7mbar。
Going out target process, sample target 3 moves to hatch door 4 position, and now hatch door 4 and sample target 3 form one and be isolated from cavity 9
Little cavity (this is because the upper cover of cavity 9 is the thickest, hatch door 4 is to cover at cavity 9 upper surface, and sample target 3 can be attached in cavity
Below wall, when moving to hatch door 4 position, between described hatch door 4 and sample target 3, surrounded the space of (formation)), referred to as cabin
Room 10.When entering target, sample target 3 is internal mobile toward cavity 9, and cabin 10 forms one with cavity 9.Individual hatch door shape is had below hatch door 4
State switch 8, can perceive opening and closing of hatch door 4.Second vacuum solenoid 6 connects cabin 10 and air, opens second
Air can be put into cabin 10 by vacuum solenoid 6；3rd vacuum solenoid 7 connects cabin 10 and mechanical pump 1, opens the 3rd
I.e. can be bled in cabin 10 by vacuum solenoid 7 mechanical pump 1.
When going out target, sample target 3 moves to hatch door 4 position, now closes the first vacuum solenoid 5, opens the second vacuum electric
Magnet valve 6, closes the second vacuum solenoid 6 after air is put into cabin 10, makes cabin 10 identical with external ambient air pressure, now
Just can open hatch door 4 and change sample target 3.
When entering target, close the first vacuum solenoid 5 and the second vacuum solenoid 6, open the 3rd vacuum solenoid 7 and make machinery
Bled in cabin 10 by pump 1.When being extracted into 10-2During the mbar order of magnitude, close the 3rd vacuum solenoid 7 and stop cabin 10 is taken out
Gas；Open the first vacuum solenoid 5 and control sample target 3 toward ion source cavity 9 internal motion, the cabin 10 of rough vacuum and chamber
Body 9 forms one.Before forming one, cabin 10 vacuum has reached 10-2The mbar order of magnitude, and cabin 10 volume is very
Little, thus the least on the impact of cavity 9 internal vacuum, and the mode pumping speed that mechanical pump 1 concatenates molecular pump 2 is very big, the most permissible
Cavity 9 internal vacuum is recovered.
Learn by ion source cavity 9 being passed in and out the analysis of target flow process: 1, hatch door 4 must just may be used after cabin 10 is formed
To open, and when hatch door 4 is opened, three vacuum solenoids 5,6,7 must Close All；2, three vacuum solenoids 5,6,7 are not
Any two can be had to open, if must be by three vacuum solenoids 5,6,7 Close All when there is this situation simultaneously；3, full
Foot above 1, under 2 two requirement conditions, three vacuum solenoids 5,6,7 must be able to individually control.
At present, the control of above three vacuum solenoid 5,6,7, is to each vacuum electromagnetic by PC control slave computer
Valve individually controls, and slave computer does not has the drive circuit with vacuum solenoid to isolate yet.Its exist deficiency be: 1, host computer and
The software that slave computer is used all there will be leak, crashes, runs situations such as flying, and once software anomaly easily occurs vacuum solenoid
Misoperation situation；2, do not have the drive circuit with vacuum solenoid to realize electric isolution due to slave computer, certainly will do by electromagnetism be produced
Disturb and cause vacuum solenoid misoperation.The deficiency of above-mentioned existence all can cause vacuum leak destruction work environment, impacts molecule
Pump and mechanical pump, cause molecular pump, mechanical pump hardware damage, and instrument is paralysed.
Summary of the invention
This utility model purpose is to provide a kind of ion source vacuum interconnection self-locking system being suitable to time of-flight mass spectrometer.
For achieving the above object, this utility model takes following technical proposals:
The ion source vacuum interconnection self-locking system being suitable to time of-flight mass spectrometer described in the utility model, including micro-process
Device, hatch door status switch, by the first vacuum electromagnetic valve controling circuit, the second vacuum electromagnetic valve controling circuit, the 3rd vacuum electromagnetic
The control circuit of valve controling circuit composition；The high potential contact of described hatch door status switch is connected with DC source VCC, hatch door shape
The electronegative potential contact of state switch is by resistance R1 ground connection；
Described first vacuum electromagnetic valve controling circuit include audion Q1, power field effect pipe Q4, photoelectrical coupler U1,
One vacuum solenoid；The emitter stage of described audion Q1 is connected with DC source VCC, the colelctor electrode of audion Q1 and described photoelectricity
The light emitting diode negative pole of bonder U1 connects, the base stage of audion Q1 by resistance R3 respectively with the positive pole of diode D1, D2
Connecting, the negative pole of described diode D1 is connected with output control signal CLI3 of described microprocessor, and described diode D2's is negative
Pole is connected with output control signal CLI2 of microprocessor, the light emitting diode positive pole of described photoelectrical coupler U1 and described hatch door
The electronegative potential contact of status switch connects, and the light emitting diode negative pole of photoelectrical coupler U1 is defeated by resistance R5 and microprocessor
Go out control signal CLI1 to connect；The phototriode emitter stage of photoelectrical coupler U1 and the driving coil of the first vacuum solenoid are low
Potential end connects, and the phototriode colelctor electrode of photoelectrical coupler U1 is by the grid of resistance R11 and described power field effect pipe Q4
Pole connects, and the grid of power field effect pipe Q4 is connected with direct current+24 volt power supply by resistance R8, the source electrode of power field effect pipe Q4
Being connected with described direct current+24 volt power supply, the drain electrode of power field effect pipe Q4 is high with the driving coil of described first vacuum solenoid
Potential end connects；The coil cold end that drives of described first vacuum solenoid connects with the ground end+24GND of described+24 volt power supplys
Connect；
Described second vacuum electromagnetic valve controling circuit include audion Q2, power field effect pipe Q5, photoelectrical coupler U2,
Two vacuum solenoids；The emitter stage of described audion Q2 is connected with DC source VCC, the colelctor electrode of audion Q2 and described photoelectricity
The light emitting diode negative pole of bonder U2 connects, the base stage of audion Q2 by resistance R4 respectively with the positive pole of diode D3, D4
Connecting, the negative pole of described diode D3 is connected with output control signal CLI3 of described microprocessor, and described diode D4's is negative
Pole is connected with output control signal CLI1 of microprocessor, the light emitting diode positive pole of described photoelectrical coupler U2 and described hatch door
The electronegative potential contact of status switch connects, and the light emitting diode negative pole of photoelectrical coupler U2 is defeated by resistance R6 and microprocessor
Go out control signal CLI2 to connect；The phototriode emitter stage of photoelectrical coupler U2 and the driving coil of the second vacuum solenoid are low
Potential end connects, and the phototriode colelctor electrode of photoelectrical coupler U2 is by the grid of resistance R12 and described power field effect pipe Q5
Pole connects, and the grid of power field effect pipe Q5 is connected with direct current+24 volt power supply by resistance R9, the source electrode of power field effect pipe Q5
Being connected with described direct current+24 volt power supply, the drain electrode of power field effect pipe Q5 is high with the driving coil of described second vacuum solenoid
Potential end connects；The coil cold end that drives of described second vacuum solenoid connects with the ground end+24GND of described+24 volt power supplys
Connect；
Described 3rd vacuum electromagnetic valve controling circuit include audion Q3, power field effect pipe Q6, photoelectrical coupler U3,
Three vacuum solenoids；The emitter stage of described audion Q3 is connected with DC source VCC, the colelctor electrode of audion Q3 and described photoelectricity
The light emitting diode negative pole of bonder U3 connects, the base stage of audion Q3 by resistance R2 respectively with the positive pole of diode D5, D6
Connecting, the negative pole of described diode D5 is connected with output control signal CLI2 of described microprocessor, and described diode D6's is negative
Pole is connected with output control signal CLI1 of microprocessor, the light emitting diode positive pole of described photoelectrical coupler U3 and described hatch door
The electronegative potential contact of status switch connects, and the light emitting diode negative pole of photoelectrical coupler U3 is defeated by resistance R7 and microprocessor
Go out control signal CLI3 to connect；The phototriode emitter stage of photoelectrical coupler U3 and the driving coil of the 3rd vacuum solenoid are low
Potential end connects, and the phototriode colelctor electrode of photoelectrical coupler U3 is by the grid of resistance R13 and described power field effect pipe Q6
Pole connects, and the grid of power field effect pipe Q6 is connected with direct current+24 volt power supply by resistance R10, the source of power field effect pipe Q6
Pole is connected with described direct current+24 volt power supply, the drain electrode of power field effect pipe Q6 and the driving coil of described 3rd vacuum solenoid
Hot end connects；Ground end+the 24GND driving coil cold end and described+24 volt power supplys of described 3rd vacuum solenoid
Connect.
This utility model advantage is to use circuit design cleverly, solves the work of external noise interference vacuum solenoid
Make state issues, stop the software maloperation to vacuum solenoid.Guarantee that when hatch door is not closed, all vacuum solenoids are all protected
Holding Guan Bi, three vacuum solenoids cannot have two valves to be opened simultaneously, if having, three vacuum solenoids be closed at
Protection vacuum.Either external disturbance, software misoperation or artificial maloperation are let out all without the vacuum causing ion source cavity
Dew accident.Vacuum safety when drastically increasing Matrix Assisted Laser Desorption ionization time-of-flight mass spectrometer ion source turnover target
Property.
Accompanying drawing explanation
Fig. 1 is the ion source vacuum system structural representation of existing time of-flight mass spectrometer.
Fig. 2 is circuit principle structure block diagram of the present utility model.
Fig. 3 is circuit theory diagrams of the present utility model.
Detailed description of the invention
As shown in Figure 2,3, the ion source vacuum interconnection self-locking system being suitable to time of-flight mass spectrometer described in the utility model,
Including microprocessor, hatch door status switch 8, by the first vacuum electromagnetic valve controling circuit, the second vacuum electromagnetic valve controling circuit,
The control circuit of three vacuum electromagnetic valve controling circuit compositions；The high potential contact of described hatch door status switch 8 and DC source VCC
Connecting, resistance R1 ground connection is passed through in the electronegative potential contact of hatch door status switch 8；
Described first vacuum electromagnetic valve controling circuit include audion Q1, power field effect pipe Q4, photoelectrical coupler U1,
One vacuum solenoid；The emitter stage of described audion Q1 is connected with DC source VCC, the colelctor electrode of audion Q1 and described photoelectricity
The light emitting diode negative pole of bonder U1 connects, the base stage of audion Q1 by resistance R3 respectively with the positive pole of diode D1, D2
Connecting, the negative pole of described diode D1 is connected with output control signal CLI3 of described microprocessor, and described diode D2's is negative
Pole is connected with output control signal CLI2 of microprocessor, the light emitting diode positive pole of described photoelectrical coupler U1 and described hatch door
The electronegative potential contact of status switch 8 connects, and the light emitting diode negative pole of photoelectrical coupler U1 is by resistance R5 and microprocessor
Output control signal CLI1 connects；The phototriode emitter stage of photoelectrical coupler U1 and the driving line of the first vacuum solenoid 5
Circle cold end connects, and the phototriode colelctor electrode of photoelectrical coupler U1 is by resistance R11 and described power field effect pipe Q4
Grid connect, the grid of power field effect pipe Q4 is connected with direct current+24 volt power supply by resistance R8, power field effect pipe Q4's
Source electrode is connected with described direct current+24 volt power supply, the drain electrode of power field effect pipe Q4 and the driving line of described first vacuum solenoid 5
Circle hot end connects；The coil cold end that drives of the first vacuum solenoid 5 is connected with the ground end+24GND of+24 volt power supplys；
Described second vacuum electromagnetic valve controling circuit include audion Q2, power field effect pipe Q5, photoelectrical coupler U2,
Two vacuum solenoids；The emitter stage of described audion Q2 is connected with DC source VCC, the colelctor electrode of audion Q2 and described photoelectricity
The light emitting diode negative pole of bonder U2 connects, the base stage of audion Q2 by resistance R4 respectively with the positive pole of diode D3, D4
Connecting, the negative pole of described diode D3 is connected with output control signal CLI3 of described microprocessor, and described diode D4's is negative
Pole is connected with output control signal CLI1 of microprocessor, the light emitting diode positive pole of described photoelectrical coupler U2 and described hatch door
The electronegative potential contact of status switch 8 connects, and the light emitting diode negative pole of photoelectrical coupler U2 is by resistance R6 and microprocessor
Output control signal CLI2 connects；The phototriode emitter stage of photoelectrical coupler U2 and the driving line of the second vacuum solenoid 6
Circle cold end connects, and the phototriode colelctor electrode of photoelectrical coupler U2 is by resistance R12 and described power field effect pipe Q5
Grid connect, the grid of power field effect pipe Q5 is connected with direct current+24 volt power supply by resistance R9, power field effect pipe Q5's
Source electrode is connected with described direct current+24 volt power supply, the drain electrode of power field effect pipe Q5 and the driving line of described second vacuum solenoid 6
Circle hot end connects；The coil cold end that drives of the second vacuum solenoid 6 is connected with the ground end+24GND of+24 volt power supplys；
Described 3rd vacuum electromagnetic valve controling circuit include audion Q3, power field effect pipe Q6, photoelectrical coupler U3,
Three vacuum solenoids；The emitter stage of described audion Q3 is connected with DC source VCC, the colelctor electrode of audion Q3 and described photoelectricity
The light emitting diode negative pole of bonder U3 connects, the base stage of audion Q3 by resistance R2 respectively with the positive pole of diode D5, D6
Connecting, the negative pole of described diode D5 is connected with output control signal CLI2 of described microprocessor, and described diode D6's is negative
Pole is connected with output control signal CLI1 of microprocessor, the light emitting diode positive pole of described photoelectrical coupler U3 and described hatch door
The electronegative potential contact of status switch 8 connects, and the light emitting diode negative pole of photoelectrical coupler U3 is by resistance R7 and microprocessor
Output control signal CLI3 connects；The phototriode emitter stage of photoelectrical coupler U3 and the driving line of the 3rd vacuum solenoid 7
Circle cold end connects, and the phototriode colelctor electrode of photoelectrical coupler U3 is by resistance R13 and described power field effect pipe Q6
Grid connect, the grid of power field effect pipe Q6 is connected with direct current+24 volt power supply by resistance R10, power field effect pipe Q6
Source electrode be connected with described direct current+24 volt power supply, drain electrode and the driving of described 3rd vacuum solenoid 7 of power field effect pipe Q6
Coil hot end connects；Ground end+the 24GND driving coil cold end and+24 volt power supplys of described 3rd vacuum solenoid 7
Connect.
Utility model works principle is summarized as follows:
When hatch door 4 is opened, hatch door status switch 8 disconnects, and hatch door status signal Cabin is connected to the ground through resistance R1, defeated
Go out low level, three photoelectrical coupler U1(model: TLP521), U2(model: TLP521), U3(model: TLP521) luminescence
The equal ground connection of diode cathode, for low level.The most no matter which kind of output control signal CLI1 of microprocessor, CLI2, CLI3 be
Level, the light emitting diode of three photoelectrical couplers U1, U2, U3 is turned off being not turned on, therefore, three photoelectrical coupler U1, U2,
It is also switched off being not turned between phototriode colelctor electrode and the emitter stage of U3.Then direct current+24V power supply is through resistance R8, R11, photoelectricity
The branch road that the phototriode colelctor electrode of bonder U1, emitter stage are constituted is not turned on；Direct current+24V power supply is through resistance R9, R12, light
Electric coupler U2 colelctor electrode (4 foot C), emitter stage (3 foot E) do not turn on to this road of+24VGND；+ 24V through resistance R10, R13,
The branch road that the phototriode colelctor electrode of photoelectrical coupler U3, emitter stage are constituted does not turns on yet.Then power field effect pipe Q4(type
Number: not having pressure reduction between source S IRF9530NS), grid G, therefore the source S of Q4, drain D cannot turn on, i.e. direct current+
24V power supply is not to the driving coil power supply of the first vacuum solenoid 5, and the first vacuum solenoid 5 cannot be opened；Power field effect pipe
Q5(model: IRF9530NS) source S, there is no pressure reduction, the therefore source S of power field effect pipe Q5, drain D between grid G yet
Cannot turn on, i.e. direct current+24V power supply is not to the driving coil power supply of the second vacuum solenoid 6, and the second vacuum solenoid 5 cannot
Open；Power field effect pipe Q6(model: IRF9530NS) source S, there is no pressure reduction, therefore power field effect between grid G yet
The source S of pipe Q6, drain D cannot turn on, and i.e. direct current+24V power supply is not to the driving coil power supply of the 3rd vacuum solenoid 7, the
Three vacuum solenoids 7 cannot be opened.
When hatch door 4 is closed, and hatch door status switch 8 closes, and hatch door status signal Cabin is connected with DC source VCC, output
High level, the light emitting diode positive pole of three photoelectrical couplers U1, U2, U3 is all connected to DC source VCC.Now:
(1) when output control signal CLI2 of microprocessor, CLI3 are high level, diode D1, D2 all reversely by,
Audion Q1(model: S8550) it is not turned on.If now microprocessor output control signal CLI1 low level, photoelectrical coupler
The light emitting diode positive pole of U1 turns on negative pole；The phototriode colelctor electrode of photoelectrical coupler U1 turns on emitter stage, the most directly
The branch road conducting that stream+24V power supply is constituted through resistance R8, R11, the phototriode colelctor electrode of photoelectrical coupler U1, emitter stage, then
About 10V pressure reduction, the therefore source S of power field effect pipe Q4, drain electrode is had between the source S of power field effect pipe Q4, grid G
D just can turn on, i.e. direct current+24V power supply is opened to the driving coil power supply of the first vacuum solenoid 5, the first vacuum solenoid 5.
I.e. when microprocessor output control signal CLI1 be low level, microprocessor output control signal CLI2, CLI3 be high level time,
First vacuum solenoid 5 is i.e. opened.In like manner, when microprocessor output control signal CLI2 be low level, CLI1, CLI3 be high electricity
At ordinary times, the second vacuum solenoid 6 is i.e. opened；When microprocessor output control signal CLI3 is that low level, CLI1, CLI2 are for high electric
At ordinary times, the 3rd vacuum solenoid 7 is i.e. opened.
(2) when microprocessor export control signal CLI2, CLI3 any one be low level, or two are low level
Time, corresponding diode D1, D2 at least forward conduction, audion Q1 turns on, the light emitting diode of photoelectrical coupler U 1
Negative pole is just high level, identical with the light emitting diode anodic potentials of photoelectrical coupler U1, and the most no matter microprocessor output is controlled
Which kind of level signal CLI1 processed is, the light emitting diode positive terminal of photoelectrical coupler U1 does not all turn on negative pole, therefore, and first
Vacuum solenoid 5 is not turned on.It is to say, when microprocessor output control signal CLI2, CLI3 are not high level, first
Vacuum solenoid 5 i.e. cannot be opened.In like manner, when microprocessor output control signal CLI1, CLI3 are not high level, second
Vacuum solenoid 6 i.e. cannot be opened；When microprocessor output control signal CLI1, CLI2 are not high level, the 3rd vacuum
Electromagnetic valve 7 i.e. cannot be opened.
In Fig. 3, resistance R1, R2, R3, R4, R5, R6, R7 play metering function；Electric capacity C1, C2, C3, C4, C5, C6 are at circuit
In strobe；Diode D7, D8, D9 play the effect of afterflow, are not damaged with the element beyond the corresponding vacuum solenoid of protection
Bad.
From figure 3, it can be seen that microprocessor output control signal CLI1, CLI2, CLI3 and rear class give corresponding vacuum electromagnetic
Direct current+24V power circuit photoelectrical coupler U1, U2, U3 that valve is powered are electrically isolated completely to, and have taken precautions against prime control signal not
The risk of stable caused vacuum solenoid misoperation.
Claims (1)
1. being suitable to an ion source vacuum interconnection self-locking system for time of-flight mass spectrometer, including microprocessor, hatch door state is opened
Close (8), by the first vacuum electromagnetic valve controling circuit, the second vacuum electromagnetic valve controling circuit, the 3rd vacuum electromagnetic valve controling circuit
The control circuit of composition；The high potential contact of described hatch door status switch (8) is connected with DC source VCC, hatch door status switch
(8) resistance R1 ground connection is passed through in electronegative potential contact；It is characterized in that:
Described first vacuum electromagnetic valve controling circuit includes audion Q1, power field effect pipe Q4, photoelectrical coupler U1, first true
Empty electromagnetic valve；The emitter stage of described audion Q1 is connected with DC source VCC, the colelctor electrode of audion Q1 and described photoelectric coupling
The light emitting diode negative pole of device U1 connects, and the base stage of audion Q1 is passed through the resistance R3 positive pole respectively with diode D1, D2 and is connected,
The negative pole of described diode D1 is connected with output control signal CLI3 of described microprocessor, and the negative pole of described diode D2 is with micro-
Output control signal CLI2 of processor connects, and the light emitting diode positive pole of described photoelectrical coupler U1 is opened with described hatch door state
The electronegative potential contact closing (8) connects, and the light emitting diode negative pole of photoelectrical coupler U1 is by the output of resistance R5 with microprocessor
Control signal CLI1 connects；The phototriode emitter stage of photoelectrical coupler U1 and the driving coil of the first vacuum solenoid (5)
Cold end connects, and the phototriode colelctor electrode of photoelectrical coupler U1 is by resistance R11 and described power field effect pipe Q4's
Grid connects, and the grid of power field effect pipe Q4 is connected with direct current+24 volt power supply by resistance R8, the source of power field effect pipe Q4
Pole is connected with described direct current+24 volt power supply, the drain electrode of power field effect pipe Q4 and the driving line of described first vacuum solenoid (5)
Circle hot end connects, the ground end+24GND driving coil cold end and described+24 volt power supplys of the first vacuum solenoid (5)
Connect；
Described second vacuum electromagnetic valve controling circuit includes audion Q2, power field effect pipe Q5, photoelectrical coupler U2, second true
Empty electromagnetic valve；The emitter stage of described audion Q2 is connected with DC source VCC, the colelctor electrode of audion Q2 and described photoelectric coupling
The light emitting diode negative pole of device U2 connects, and the base stage of audion Q2 is passed through the resistance R4 positive pole respectively with diode D3, D4 and is connected,
The negative pole of described diode D3 is connected with output control signal CLI3 of described microprocessor, and the negative pole of described diode D4 is with micro-
Output control signal CLI1 of processor connects, and the light emitting diode positive pole of described photoelectrical coupler U2 is opened with described hatch door state
The electronegative potential contact closing (8) connects, and the light emitting diode negative pole of photoelectrical coupler U2 is by the output of resistance R6 with microprocessor
Control signal CLI2 connects；The phototriode emitter stage of photoelectrical coupler U2 and the driving coil of the second vacuum solenoid (6)
Cold end connects, and the phototriode colelctor electrode of photoelectrical coupler U2 is by resistance R12 and described power field effect pipe Q5's
Grid connects, and the grid of power field effect pipe Q5 is connected with direct current+24 volt power supply by resistance R9, the source of power field effect pipe Q5
Pole is connected with described direct current+24 volt power supply, the drain electrode of power field effect pipe Q5 and the driving line of described second vacuum solenoid (6)
Circle hot end connects；The ground end driving coil cold end and described+24 volt power supplys of described second vacuum solenoid (6)+
24GND connects；
Described 3rd vacuum electromagnetic valve controling circuit includes audion Q3, power field effect pipe Q6, photoelectrical coupler U3, the 3rd true
Empty electromagnetic valve；The emitter stage of described audion Q3 is connected with DC source VCC, the colelctor electrode of audion Q3 and described photoelectric coupling
The light emitting diode negative pole of device U3 connects, and the base stage of audion Q3 is passed through the resistance R2 positive pole respectively with diode D5, D6 and is connected,
The negative pole of described diode D5 is connected with output control signal CLI2 of described microprocessor, and the negative pole of described diode D6 is with micro-
Output control signal CLI1 of processor connects, and the light emitting diode positive pole of described photoelectrical coupler U3 is opened with described hatch door state
The electronegative potential contact closing (8) connects, and the light emitting diode negative pole of photoelectrical coupler U3 is by the output of resistance R7 with microprocessor
Control signal CLI3 connects；The phototriode emitter stage of photoelectrical coupler U3 and the driving coil of the 3rd vacuum solenoid (7)
Cold end connects, and the phototriode colelctor electrode of photoelectrical coupler U3 is by resistance R13 and described power field effect pipe Q6's
Grid connects, and the grid of power field effect pipe Q6 is connected with direct current+24 volt power supply by resistance R10, power field effect pipe Q6's
Source electrode is connected with described direct current+24 volt power supply, the drain electrode of power field effect pipe Q6 and the driving of described 3rd vacuum solenoid (7)
Coil hot end connects；The ground end driving coil cold end and described+24 volt power supplys of described 3rd vacuum solenoid (7)
+ 24GND connects.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620704800.6U CN205810758U (en) | 2016-07-06 | 2016-07-06 | Be suitable to the ion source vacuum interconnection self-locking system of time of-flight mass spectrometer |
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| CN201620704800.6U CN205810758U (en) | 2016-07-06 | 2016-07-06 | Be suitable to the ion source vacuum interconnection self-locking system of time of-flight mass spectrometer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977127A (en) * | 2016-07-06 | 2016-09-28 | 安图实验仪器(郑州)有限公司 | Ion source vacuum interconnection self-locking system adapted to time-of-flight mass spectrometer |
-
2016
- 2016-07-06 CN CN201620704800.6U patent/CN205810758U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977127A (en) * | 2016-07-06 | 2016-09-28 | 安图实验仪器(郑州)有限公司 | Ion source vacuum interconnection self-locking system adapted to time-of-flight mass spectrometer |
| CN105977127B (en) * | 2016-07-06 | 2017-08-29 | 安图实验仪器(郑州)有限公司 | Ion gun vacuum suitable for time of-flight mass spectrometer interconnects self-locking system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161214 Effective date of abandoning: 20170829 |
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| AV01 | Patent right actively abandoned |