CN107809102A - A kind of mass spectrometer detector high tension protection circuit - Google Patents
A kind of mass spectrometer detector high tension protection circuit Download PDFInfo
- Publication number
- CN107809102A CN107809102A CN201711112487.2A CN201711112487A CN107809102A CN 107809102 A CN107809102 A CN 107809102A CN 201711112487 A CN201711112487 A CN 201711112487A CN 107809102 A CN107809102 A CN 107809102A
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- control unit
- detector
- voltage
- high pressure
- source module
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- 238000004891 communication Methods 0.000 claims abstract description 10
- 230000003750 conditioning effect Effects 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 230000002159 abnormal effect Effects 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 5
- 230000001143 conditioned effect Effects 0.000 claims description 3
- 230000036541 health Effects 0.000 claims description 3
- 230000000474 nursing effect Effects 0.000 claims 1
- 150000002500 ions Chemical class 0.000 description 16
- 238000010586 diagram Methods 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 150000001793 charged compounds Chemical class 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000752 ionisation method Methods 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 238000000918 plasma mass spectrometry Methods 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
- H02H3/202—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage for dc systems
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- Protection Of Static Devices (AREA)
Abstract
The invention discloses a kind of mass spectrometer detector high tension protection circuit, including：Control unit, HVDC source module, high pressure sets component, switch control assembly, and feedback component, the HVDC source module communications status is fed back to described control unit and is transferred to described control unit by the feedback component, carry out judging whether integrated circuit whether state is normal by described control unit, and and then control the switch control assembly to be powered to the HVDC source module, while the high pressure sets component that the HVDC source will be controlled to export predetermined high pressure value to be delivered to the HVDC source;The present invention is using the judgement to circuit working state; and detector is powered by controlling switch circuit and power operation; ensure that detector has voltage in the course of the work; avoid unrelated loss for a long time; meanwhile using setting highest to protect voltage, detector is avoided to carry too high voltages; detector is further protected, lifts service life.
Description
Technical field
The invention belongs to mass spectrometry art, more particularly to a kind of mass spectrometer detector high tension protection circuit therein.
Background technology
Mass spectrograph is mainly made up of sampling system, ion gun, electro-ionic osmosis and ion transmission, mass analyzer, detector,
It is aided with electricity system simultaneously and vacuum system ensures the normal operation of instrument.In inductivity coupled plasma mass spectrometry analytical instrument
In, the species and content of element micro in sample are detected, sample enters after sampling system imports is in Gao Zhen
The ionizing system of dummy status is ionized, and conventional ionization method is electron ionization i.e. electron bombardment method.It is profit
Thermoelectron interacts with the organic molecule in gas phase caused by filament heating, molecule is lost valence electron, ionization turns into
Positively charged molecular ion.If the interior energy of molecular ion is larger, it is possible to chemical bond rupture occurs, generation m/Z is less
Fragment ion.These ions and fragment enter mass analyzer under the guiding of electromagnetic field, using ion in magnetic field or electric field
Kinetic property, the ion of different mass-to-charge ratioes can be separated, then measure the intensity of ion stream respectively by detector, obtained specific
Mass spectrogram, and molecular structure is different, and mass spectrogram is also different, and qualitative and structural analysis can be carried out according to the position at peak, and peak
Intensity be directly proportional with number of ions, obtain the quantitative information of sample according to this.
After mass analyzer filters out the ion signal of needs, these ions enter detector, the band in detector at a high speed
The signal ion of positive charge is converted to electron stream, and the pulse signal exported after testing after device amplification is put by detector signal acquisition
Big circuit receives amplification, and is converted into the square-wave pulse signal easily detected by MCU, and a pulse is exactly a count value, meter
The size of number numerical value and the charged ion quantity that mass analyzer exports are proportional, have a charged ion theoretically just
There is a count value, but due to the ion stream speed into detector quickly, detector has the limitation in dead time, institute in itself
It is not many times one-to-one relationship with detected charged ion and count value, but multiple ion pairs answer a pulsimeter
Count, after the count value that MCU module is needed, these data are transmitted to host computer, spectrogram is shown for host computer, and it is upper
Machine carries out appropriate buckle back scape and set as needed.
In actually detected, there can be certain signal to noise ratio, it crosses the presentation that senior general directly affects signal collection of illustrative plates, Er Qiezhi
Connect detector is applied with kilovolt high pressure will acceleration detection device loss, the maximum voltage more than detector will to detect
Device is directly scrapped, it is therefore desirable to finds a kind of technical scheme or method that can solve the problem that above mentioned problem.
The content of the invention
In view of this, it is necessary to overcome at least one in drawbacks described above of the prior art.The invention provides a germplasm
Spectrometer detector high tension protection circuit, including control unit, HVDC source module, for controlling the HVDC source to export
Predetermined high pressure and the high pressure setting component being connected with described control unit, for controlling to HVDC source module power supply
Control assembly is switched, and the HVDC source module communications status is fed back to the feedback component of described control unit, institute
State feedback component the HVDC source module communications status is fed back into described control unit and be transferred to described control unit, by
Described control unit carries out judging whether integrated circuit whether state is normal, and and then controls the switch control assembly to described
HVDC source module is powered, while the high pressure sets component to control the HVDC source output predetermined high pressure value
The HVDC source is delivered to, if described control unit judges that the integrated circuit is normal, inputs the electricity of the detector
Press as normal value, if described control unit judges that the integrated circuit is abnormal or does not work, then input the detector
Voltage is 0.
According in this patent background technology to that described in prior art, in actually detected, can there is certain signal to noise ratio, its
Cross the presentation that senior general directly affects signal collection of illustrative plates, and directly detector is applied with kilovolt high pressure will acceleration detection device damage
Consumption, the maximum voltage more than detector will cause detector directly to scrap；And mass spectrometer detector high pressure disclosed by the invention
Protection circuit, using the judgement to circuit working state, and behaviour is powered and powered off to detector by controlling switch circuit
Make, ensure that detector only there can be voltage in the course of the work, avoid prolonged unrelated loss, meanwhile, utilize setting
Highest protects voltage, and detector can be avoided to carry too high voltage, further protects detector, lifts service life.
In addition, following additional technical feature is also had according to the rotational structure disclosed by the invention for more collimaters：
Further, the HVDC source module includes positive high voltage direct current source module and negative high voltage direct current source module；
The positive high voltage DC source module status：
The HVDC source is exported predetermined positive high voltage and is conveyed to the high pressure by described control unit sets component and further
Be conveyed to the positive high voltage direct current source module be used for export positive supply binding post predeterminated voltage to the detector；Meanwhile institute
Control unit is stated by sentencing to the working state signal transmitted by the positive high voltage DC source from the feedback component
It is disconnected, if normally, controlling the switch control assembly to start and being powered to the positive high voltage DC source, if abnormal or do not work,
Then power off；
The negative high voltage DC source module status：
The HVDC source is exported predetermined negative high-pressure delivery and sets component and further to the high pressure by described control unit
Be conveyed to the negative high voltage direct current source module be used for export negative supply binding post predeterminated voltage to the detector；Meanwhile institute
Control unit is stated by sentencing to the working state signal transmitted by the negative high voltage DC source from the feedback component
It is disconnected, if normally, controlling the switch control assembly to start and being powered to the negative high voltage DC source, if abnormal or do not work,
Then power off.
Further, the high pressure sets component to include high pressure and sets D/A conversion unit and the conditioning of high pressure setting signal
Unit, the high pressure set D/A conversion unit to be coupled described control unit and will turned from goal-selling voltage value signal
Change and be transmitted to the high pressure setting signal conditioning unit, it is conditioned after magnitude of voltage be conveyed to the HVDC source and exported
Give detector voltage binding post；
Further, the switch control assembly includes being coupled the switch for being used to control solid-state relay of described control unit
Circuit, and solid-state relay and the power supply part of the control solid-state relay by on-off circuit control.
Further, the feedback component includes being used to nurse one's health the feedback signal tune from the HVDC source signal
Reason unit and the feedback signal is subjected to analog-to-digital conversion and is transmitted to described control unit and thus circuitry operating conditions are entered
The feedback modulus converting unit that row judges.
Further, the protection circuit also includes host computer and between described control unit and the host computer
The communication unit to be communicated.
Preferably, it is highest protection voltage that the host computer, which is provided with, and it is defeated that the highest protects the setting of voltage to allow
The voltage entered onto detector is no more than this protection voltage, further ensure that the protection to detector.
The HVDC source being related in this case includes feedback pin (FB), sets pin（VREF）, feeder ear（VIN）, it is high
Pressure side（HV）, the feedback pin is connected with the feedback component, described to set pin to set component to be connected with the high pressure, institute
State feeder ear to be connected with the switch control assembly, the high tension terminal of the high-pressure side and the detector is connected, if described
HVDC source is positive high voltage DC source, then high-pressure side is positive high voltage end, is connected with the detector positive high voltage binding post, if institute
It is negative high voltage DC source to state HVDC source, then high-pressure side is negative high-voltage end, is connected with the detector negative high voltage binding post.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from the following description of the accompanying drawings of embodiments
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the positive high voltage protection circuit theory diagram according to the present invention；
Fig. 2 is the negative high-voltage protection circuit theory diagram according to the present invention；
In Fig. 1,1 host computer, 2 high pressures set component, and 21 high pressures set D/A conversion unit, 22 high pressure setting signals conditioning list
Member, 3 feedback components, 31 feedback modulus converting units, 32 feedback signal conditioning units, 4 communication units, 5 HVDC sources, 51 just
HVDC source, 52 negative high voltage DC sources, 6 detector binding posts, 61 detector positive voltage binding posts, the crimping of 62 detector negative electricity
Terminal, 7 switch control assemblies, 71 on-off circuits, 72 solid-state relays.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
In the description of the invention, it is to be understood that term " on ", " under ", " bottom ", " top ", "front", "rear",
The orientation or position relationship of the instruction such as " interior ", " outer ", " horizontal stroke ", " perpendicular ", " inner side ", " outside " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the description of the invention, it is necessary to which explanation, unless otherwise clearly defined and limited, term " connection ", " connects
It is logical ", " connected ", " connection ", " cooperation " should be interpreted broadly, for example, it may be fixedly connected, be integrally connected or
It is detachably connected；It can be the connection of two element internals；Can be joined directly together, the indirect phase of intermediary can also be passed through
Even；" cooperation " can be the cooperation in face and face or the cooperation in point and face or line and face, and the also cooperation including hole axle is right
For one of ordinary skill in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
The inventive concept of the present invention is as follows, using the judgement to circuit working state, and by controlling switch circuit to inspection
Survey device is powered and power operation, ensures that detector only can have voltage in the course of the work, avoids prolonged nothing
Loss is closed, meanwhile, using setting highest to protect voltage, detector can be avoided to carry too high voltage, further protect inspection
Device is surveyed, lifts service life.
Below with reference to accompanying drawings come describe the present invention steel bonding piece alignment device, wherein Fig. 1 be according to the present invention just
High voltage protection circuit theory diagram；Fig. 2 is the negative high-voltage protection circuit theory diagram according to the present invention.
According to an embodiment of the invention, as shown in Figure 1, 2, high tension protection circuit disclosed by the invention, including control unit,
HVDC source module, the high pressure for controlling the HVDC source output predetermined high pressure and being connected with described control unit are set
Component is put, for controlling the switch control assembly to HVDC source module power supply, and by HVDC source mould
Block communications status feeds back to the feedback component of described control unit, and the feedback component communicates the HVDC source module shape
State feeds back to described control unit and is transferred to described control unit, carries out whether judging whether integrated circuit by described control unit
State is normal, and and then control the switch control assembly to be powered to the HVDC source module, while the high pressure
Set component that the HVDC source output predetermined high pressure value will be controlled to be delivered to the HVDC source, if described control unit
Judge that the integrated circuit is normal, then the voltage for inputting the detector is normal value, if described control unit judge it is described whole
Body circuit is abnormal or does not work, then the voltage for inputting the detector is 0.
In addition, following additional technical feature is also had according to the rotational structure disclosed by the invention for more collimaters：
According to some embodiments of the present invention, the HVDC source module includes positive high voltage direct current source module and negative high voltage direct current
Source module；
The positive high voltage DC source module status：
The HVDC source is exported predetermined positive high voltage and is conveyed to the high pressure by described control unit sets component and further
Be conveyed to the positive high voltage direct current source module be used for export positive supply binding post predeterminated voltage to the detector；Meanwhile institute
Control unit is stated by sentencing to the working state signal transmitted by the positive high voltage DC source from the feedback component
It is disconnected, if normally, controlling the switch control assembly to start and being powered to the positive high voltage DC source, if abnormal or do not work,
Then power off；
The negative high voltage DC source module status：
The HVDC source is exported predetermined negative high-pressure delivery and sets component and further to the high pressure by described control unit
Be conveyed to the negative high voltage direct current source module be used for export negative supply binding post predeterminated voltage to the detector；Meanwhile institute
Control unit is stated by sentencing to the working state signal transmitted by the negative high voltage DC source from the feedback component
It is disconnected, if normally, controlling the switch control assembly to start and being powered to the negative high voltage DC source, if abnormal or do not work,
Then power off.
According to one embodiment of present invention, the high pressure sets component to include high pressure and sets D/A conversion unit and high pressure
Setting signal conditioning unit, the high pressure set D/A conversion unit to be coupled described control unit and will come from goal-selling voltage
Value signal is changed and is transmitted to the high pressure setting signal conditioning unit, it is conditioned after magnitude of voltage be conveyed to the high straightening
Stream source, which is exported, gives detector voltage binding post, and default high-voltage value is transported to institute by the high pressure setting signal conditioning unit
State the setting pin in HVDC source；
According to one embodiment of present invention, it is described to switch control assembly including connection described control unit for controlling solid-state
The on-off circuit of relay, and by the solid-state relay that the on-off circuit controls and control powering for the solid-state relay
Part.
According to one embodiment of present invention, the feedback component includes being used to nurse one's health coming from the HVDC source signal
Feedback signal conditioning unit and by the feedback signal carry out analog-to-digital conversion and be transmitted to described control unit and thus to electricity
The feedback modulus converting unit that road working condition is judged.
According to some embodiments of the present invention, the protection circuit also include host computer and for described control unit with
The communication unit to be communicated between the host computer.
Preferably, it is highest protection voltage that the host computer, which is provided with, and it is defeated that the highest protects the setting of voltage to allow
The voltage entered onto detector is no more than this protection voltage, further ensure that the protection to detector.
The HVDC source being related in this case includes feedback pin (FB), sets pin（VREF）, feeder ear（VIN）, it is high
Pressure side（HV）, the feedback pin is connected with the feedback component, described to set pin to set component to be connected with the high pressure, institute
State feeder ear to be connected with the switch control assembly, the high tension terminal of the high-pressure side and the detector is connected, if described
HVDC source is positive high voltage DC source, then high-pressure side is positive high voltage end, is connected with the detector positive high voltage binding post, if institute
It is negative high voltage DC source to state HVDC source, then high-pressure side is negative high-voltage end, is connected with the detector negative high voltage binding post.
It is any to refer to that " one embodiment ", " embodiment ", " illustrative examples " etc. mean to combine embodiment description
Specific component, structure or feature are contained at least one embodiment of the present invention.This specification everywhere this is schematic
Statement is not necessarily referring to identical embodiment.Specific component, structure or feature are described with reference to any embodiment moreover, working as
When, advocated, component, structure or feature with reference to as being realized other embodiments all fall within those skilled in the art
Within the scope of.
Although detailed retouch is carried out to the embodiment of the present invention with reference to multiple illustrative examples of the present invention
State, it must be understood that those skilled in the art can be designed that various other improvement and embodiment, these improve and implemented
Example will fall within spirit and scope.Specifically, in the scope of foregoing disclosure, accompanying drawing and claim
Within, rational variations and modifications can be made in terms of the arrangement that parts and/or sub-combination are laid out, without departing from
The spirit of the present invention.Except the variations and modifications in terms of parts and/or layout, its scope is by appended claims and its is equal
Thing limits.
Claims (7)
1. a kind of mass spectrometer detector high tension protection circuit, it is characterised in that including control unit, HVDC source module, use
Component is set in the high pressure for controlling the HVDC source output predetermined high pressure and being connected with described control unit, given for controlling
The switch control assembly of the HVDC source module power supply, and the HVDC source module communications status is fed back into institute
The feedback component of control unit is stated, the HVDC source module communications status is fed back to the control list by the feedback component
Member is transferred to described control unit, carries out judging whether integrated circuit whether state is normal by described control unit, and and then controls
Make the switch control assembly to be powered to the HVDC source module, while the high pressure sets component by described in control
HVDC source output predetermined high pressure value is delivered to the HVDC source, if described control unit is judging the integrated circuit just
Often, then the voltage for inputting the detector is normal value, if described control unit judges that the integrated circuit is abnormal or not work
Make, then the voltage for inputting the detector is 0.
2. mass spectrometer detector high tension protection circuit according to claim 1, it is characterised in that HVDC source mould
Block includes positive high voltage direct current source module and negative high voltage direct current source module；
The positive high voltage DC source module status：
The HVDC source is exported predetermined positive high voltage and is conveyed to the high pressure by described control unit sets component and further
Be conveyed to the positive high voltage direct current source module be used for export positive supply binding post predeterminated voltage to the detector；Meanwhile institute
Control unit is stated by sentencing to the working state signal transmitted by the positive high voltage DC source from the feedback component
It is disconnected, if normally, controlling the switch control assembly to start and being powered to the positive high voltage DC source, if abnormal or do not work,
Then power off；
The negative high voltage DC source module status：
The HVDC source is exported predetermined negative high-pressure delivery and sets component and further to the high pressure by described control unit
Be conveyed to the negative high voltage direct current source module be used for export negative supply binding post predeterminated voltage to the detector；Meanwhile institute
Control unit is stated by sentencing to the working state signal transmitted by the negative high voltage DC source from the feedback component
It is disconnected, if normally, controlling the switch control assembly to start and being powered to the negative high voltage DC source, if abnormal or do not work,
Then power off.
3. according to the described mass spectrometer detector high tension protection circuit of any one of claim 1 or 2, it is characterised in that described
High pressure sets component to include high pressure and sets D/A conversion unit and high pressure setting signal conditioning unit, and the high pressure sets digital-to-analogue to turn
Unit is changed to be coupled described control unit and will be changed from goal-selling voltage value signal and be transmitted to the high pressure setting letter
Number conditioning unit, it is conditioned after magnitude of voltage be conveyed to the HVDC source and exported and give detector voltage binding post.
4. according to the described mass spectrometer detector high tension protection circuit of any one of claim 1 or 2, it is characterised in that described
Switch control assembly includes being coupled the on-off circuit for being used to control solid-state relay of described control unit, and by the switch electricity
The solid-state relay of road control and the power supply part of the control solid-state relay.
5. according to the described mass spectrometer detector high tension protection circuit of any one of claim 1 or 2, it is characterised in that described
Feedback component includes being used for nursing one's health feedback signal conditioning unit from the HVDC source signal and by the feedback signal
Feedback modulus conversion that is carrying out analog-to-digital conversion and be transmitted to described control unit and thus being judged circuitry operating conditions is single
Member.
6. mass spectrometer detector high tension protection circuit according to claim 1, it is characterised in that the protection circuit is also wrapped
Include host computer and the communication unit for being communicated between described control unit and the host computer.
7. mass spectrometer detector high tension protection circuit according to claim 6, it is characterised in that the host computer is provided with
It is highest protection voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711112487.2A CN107809102A (en) | 2017-11-13 | 2017-11-13 | A kind of mass spectrometer detector high tension protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711112487.2A CN107809102A (en) | 2017-11-13 | 2017-11-13 | A kind of mass spectrometer detector high tension protection circuit |
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| Publication Number | Publication Date |
|---|---|
| CN107809102A true CN107809102A (en) | 2018-03-16 |
Family
ID=61583803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711112487.2A Pending CN107809102A (en) | 2017-11-13 | 2017-11-13 | A kind of mass spectrometer detector high tension protection circuit |
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| Country | Link |
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| CN (1) | CN107809102A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116316406A (en) * | 2022-09-08 | 2023-06-23 | 瑞莱谱(杭州)医疗科技有限公司 | Mass spectrometer detection protection circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05258714A (en) * | 1992-03-16 | 1993-10-08 | Hitachi Ltd | Plasma mass analyzing device |
| CN103199714A (en) * | 2013-04-17 | 2013-07-10 | 普瑞麦迪（北京）实验室技术有限公司 | Power source device of electrophoresis system |
| US20130319862A1 (en) * | 2012-06-04 | 2013-12-05 | Beckman Coulter, Inc. | Leakage current sense circuit for error detection in an improved capillary electrophoresis-electrospray ionization- mass spectrometry system |
| WO2016162658A1 (en) * | 2015-04-09 | 2016-10-13 | Kratos Analytical Limited | Time of flight mass spectrometer |
| CN207801455U (en) * | 2017-11-13 | 2018-08-31 | 江苏天瑞仪器股份有限公司 | A kind of mass spectrometer detector high tension protection circuit |
-
2017
- 2017-11-13 CN CN201711112487.2A patent/CN107809102A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05258714A (en) * | 1992-03-16 | 1993-10-08 | Hitachi Ltd | Plasma mass analyzing device |
| US20130319862A1 (en) * | 2012-06-04 | 2013-12-05 | Beckman Coulter, Inc. | Leakage current sense circuit for error detection in an improved capillary electrophoresis-electrospray ionization- mass spectrometry system |
| CN103199714A (en) * | 2013-04-17 | 2013-07-10 | 普瑞麦迪（北京）实验室技术有限公司 | Power source device of electrophoresis system |
| WO2016162658A1 (en) * | 2015-04-09 | 2016-10-13 | Kratos Analytical Limited | Time of flight mass spectrometer |
| CN207801455U (en) * | 2017-11-13 | 2018-08-31 | 江苏天瑞仪器股份有限公司 | A kind of mass spectrometer detector high tension protection circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116316406A (en) * | 2022-09-08 | 2023-06-23 | 瑞莱谱(杭州)医疗科技有限公司 | Mass spectrometer detection protection circuit |
| CN116316406B (en) * | 2022-09-08 | 2023-11-07 | 瑞莱谱(杭州)医疗科技有限公司 | Mass spectrometer detection protection circuit |
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