CN207801455U - 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
- CN207801455U CN207801455U CN201721502230.3U CN201721502230U CN207801455U CN 207801455 U CN207801455 U CN 207801455U CN 201721502230 U CN201721502230 U CN 201721502230U CN 207801455 U CN207801455 U CN 207801455U
- Authority
- CN
- China
- Prior art keywords
- high voltage
- source module
- direct current
- current source
- control unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Electron Tubes For Measurement (AREA)
Abstract
The utility model discloses a kind of mass spectrometer detector high tension protection circuits, including：Control unit, high voltage direct current source module, component is arranged in high pressure, switch control assembly, and the high voltage direct current source module communications status is fed back to described control unit and is transferred to described control unit by feedback component, the feedback component, is carried out judging whether integrated circuit is that state is normal by described control unit, and control the switch control assembly in turn and be powered to the high voltage direct current source module, while high pressure setting component controls the high voltage direct current source module and exports predetermined high pressure value;The utility model is using the judgement to circuit working state; and detector is powered and power operation by controlling switching circuit; ensure that detector has voltage during the work time; avoid unrelated loss for a long time; meanwhile voltage is protected using setting highest, avoid detector from carrying too high voltages; detector is further protected, service life is promoted.
Description
Technical field
The utility model belongs to mass spectrometry art more particularly to one such mass spectrometer detector high tension protection circuit.
Background technology
Mass spectrograph is mainly made of sampling system, ion source, 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 type 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
Organic molecule interaction in the thermoelectron and gas phase that are generated when with filament heating, makes molecule lose valence electron, ionization becomes
Positively charged molecular ion.If the interior energy of molecular ion is larger, it is possible to chemical bond rupture occur, it is smaller to generate m/Z
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 high speed enters detector, the band in detector
The signal ion of positive charge is converted to electron stream, and the pulse signal exported after device amplification after testing is put by detector signal acquisition
Big circuit receives amplification, and is converted into the square-wave pulse signal for being easy to be 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, and there are one charged ions theoretically just
There are one count values, but quickly due to the ion stream speed into detector, detector itself has the limitation in dead time, institute
With detected charged ion and count value, many times instead of one-to-one relationship, multiple ion pairs do not answer a pulsimeter
It counts, after the count value that MCU module is needed, these data is transmitted to host computer, spectrogram is shown for host computer, and it is upper
Machine carries out buckle back scape setting appropriate as needed.
In actually detected, there can be certain signal-to-noise ratio, cross the presentation that senior general directly affects signal collection of illustrative plates, Er Qiezhi
Connect to detector be 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 find a kind of technical solution or method that can be solved the above problems.
Utility model content
In view of this, needing to overcome at least one of drawbacks described above in the prior art.The utility model provides one
Kind mass spectrometer detector high tension protection circuit, including control unit, high voltage direct current source module, for controlling the high voltage direct current source
Module exports predetermined high pressure and component is arranged in the high pressure being connected with described control unit, and high voltage direct current source mould is given for controlling
The switch control assembly of block power supply, and the high voltage direct current source module communications status is fed back to the feedback of described control unit
Component, high voltage direct current source module communications status feedback is passed to described control unit by the feedback component, by the control
Unit processed carries out judging whether integrated circuit is that state is normal, and controls the switch control assembly in turn to the high voltage direct current
Source module is powered, while high pressure setting component controls the high voltage direct current source module and exports predetermined high pressure value, if institute
It states control unit and judges that the integrated circuit is normal, then the voltage for inputting the detector is normal value, if described control unit
Judge that the integrated circuit is abnormal or does not work, then the voltage for inputting the detector is 0.
According in this patent background technology to that described in the prior art, in actually detected, can there is certain signal-to-noise ratio,
Cross the presentation that senior general directly affects signal collection of illustrative plates, and directly to detector be applied with kilovolt high pressure will acceleration detection device damage
Consumption, the maximum voltage more than detector will make detector directly scrap；And mass spectrometer detector disclosed by the utility model
High tension protection circuit is powered and breaks to detector using the judgement to circuit working state, and by controlling switching circuit
It is electrically operated, ensure that detector can only have voltage during the work time, avoids prolonged unrelated loss, meanwhile, it utilizes
Highest is set and protects voltage, excessively high voltage can be carried to avoid detector, further protects detector, is promoted and uses the longevity
Life.
In addition, also having following supplementary technology special according to the rotational structure disclosed by the utility model for more collimators
Sign：
Further, the high voltage direct current 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 high voltage direct current source module is exported predetermined positive high voltage and is conveyed to the high pressure setting component by described control unit,
Predetermined positive high voltage is further conveyed to the positive high voltage direct current source module by the high pressure setting component, and predetermined positive high voltage is as institute
State the predeterminated voltage of the positive supply binding post of detector；Meanwhile described control unit by from the feedback component by
The working state signal of the positive high voltage DC source module transfer is judged, if normal, then controls the switch control assembly
Start to the positive high voltage DC source module for power supply, if abnormal or do not work, powers off；
The negative high voltage DC source module status：
The high voltage direct current source module is exported predetermined negative high-pressure delivery and component is arranged to the high pressure by described control unit,
The high pressure setting component is further conveyed to the negative high voltage direct current source module, and predetermined negative high voltage is as output to the detection
The predeterminated voltage of the negative supply binding post of device；Meanwhile described control unit passes through to being born by described from the feedback component
High voltage direct current source module transmission working state signal judged, if normal, then control the switch control assembly start to
The negative high voltage DC source module for power supply powers off if abnormal or do not work.
Further, the high pressure setting component includes high pressure setting D/A conversion unit and the conditioning of high pressure setting signal
Unit, the high pressure setting D/A conversion unit are coupled described control unit, and the high pressure setting D/A conversion unit will come from
The high pressure setting signal conditioning unit is converted and be transmitted to goal-selling voltage value signal, it is conditioned after voltage value conveying
To the high voltage direct current source module, the high voltage direct current source module, which exports, gives detector voltage binding post；
Further, the switch control assembly includes connection described control unit for controlling solid-state relay
Switching circuit, and by the solid-state relay that the switching circuit controls and the power supply part for controlling the solid-state relay.
Further, the feedback component includes for improving the feedback letter from the high voltage direct current source module signal
Number conditioning unit and the feedback signal is subjected to analog-to-digital conversion and be transmitted to described control unit and thus work shape to circuit
The feedback modulus converting unit that condition is judged.
Further, the protection circuit further includes host computer and is used between described control unit and the host computer
The communication unit communicated.
Preferably, the host computer setting highest protects voltage, and the setting of the highest protection voltage, which can allow, to be input to
Voltage on detector is no more than this protection voltage, further ensures the protection to detector.
High voltage direct current source module involved in this case includes feedback pin (FB), and pin is arranged（VREF）, feeder ear
（VIN）, high-pressure side（HV）, the feedback pin is connected with the feedback component, the setting pin and the high pressure setting group
Part is connected, and the feeder ear is connected with the switch control assembly, the high tension terminal phase of the high-pressure side and the detector
Connection, if the high voltage direct current source module is positive high voltage direct current source module, high-pressure side is positive high voltage end, just high with the detector
Crimping terminal is connected, if the high voltage direct current source module is negative high voltage direct current source module, high-pressure side is negative high-voltage end, and described
Detector negative high voltage binding post is connected.
The additional aspect of the utility model and advantage will be set forth in part in the description, partly will be from following description
In become apparent, or recognized by the practice of the utility model.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model from the following description of the accompanying drawings of embodiments will
Become apparent and is readily appreciated that, wherein：
Fig. 1 is positive high voltage protection circuit functional block diagram according to the present utility model；
Fig. 2 is negative high-voltage protection schematic block circuit diagram according to the present utility model；
In Fig. 1, component is arranged in 1 host computer, 2 high pressures, and D/A conversion unit, the conditioning of 22 high pressure setting signals is arranged in 21 high pressures
Unit, 3 feedback components, 31 feedback modulus converting units, 32 feedback signal conditioning units, 4 communication units, 5 high voltage direct current source moulds
Block, 51 positive high voltage direct current source modules, 52 negative high voltage direct current source modules, 6 detector binding posts, 61 detector positive voltage binding posts,
62 detector negative voltage binding posts, 7 switch control assemblies, 71 switching circuits, 72 solid-state relays.
Specific implementation mode
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and cannot be construed to the utility model
Limitation.
In the description of the present invention, it should be understood that term "upper", "lower", "bottom", "top", "front", "rear",
The orientation or positional relationship of the instructions such as "inner", "outside", " cross ", " perpendicular ", " inside ", " outside " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated device or member
Part must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " joins
Connect ", " connection ", " connected ", " connection ", " cooperation " shall be understood in a broad sense, for example, it may be being fixedly connected, be integrally connected,
Can be detachably connected；It can be the connection inside two elements；It can be directly connected, it can also be by between intermediary
It connects connected；" cooperation " can be the cooperation in face and face, can also be the cooperation of point and face or line and face, also include matching for hole axle
It closes, for the ordinary skill in the art, above-mentioned term in the present invention specific can be understood with concrete condition
Meaning.
The utility model design of the utility model is as follows, is switched using the judgement to circuit working state, and by controlling
Circuit is powered to detector and power operation, ensures that detector can only have voltage during the work time, avoids length
The unrelated loss of time, meanwhile, voltage is protected using setting highest, excessively high voltage can be carried to avoid detector, further
Detector is protected, service life is promoted.
Below with reference to accompanying drawings come describe the utility model steel bonding piece alignment device, wherein Fig. 1 is according to this practicality
Novel positive high voltage protection circuit functional block diagram；Fig. 2 is negative high-voltage protection schematic block circuit diagram according to the present utility model.
Embodiment according to the present utility model, as shown in Figure 1, 2, high tension protection circuit disclosed by the utility model, including
Control unit, high voltage direct current source module, for control high voltage direct current source module output predetermined high pressure and with the control singly
Component is arranged in high pressure that member is connected, for controlling the switch control assembly powered to the high voltage direct current source module, and by institute
State the feedback component that high voltage direct current source module communications status feeds back to described control unit, the feedback component is by the high straightening
Stream source module communications status feeds back to described control unit and is transferred to described control unit, and carrying out judgement by described control unit is
Whether state is normal for no integrated circuit, and controls the switch control assembly in turn and supplied to the high voltage direct current source module
Electricity, while high pressure setting component will control the high voltage direct current source module output predetermined high pressure value and be delivered to the high straightening
Source module is flowed, if described control unit judges that the integrated circuit is normal, the voltage for inputting the detector is normal value, if
Described control unit judges that the integrated circuit is abnormal or does not work, then the voltage for inputting the detector is 0.
In addition, also having following supplementary technology special according to the rotational structure disclosed by the utility model for more collimators
Sign：
Some embodiments according to the present utility model, the high voltage direct current source module include positive high voltage direct current source module and bear
High voltage direct current source module；
The positive high voltage DC source module status：
The high voltage direct current source module is exported predetermined positive high voltage and is conveyed to the high pressure setting component by described control unit,
Predetermined positive high voltage is further conveyed to the positive high voltage direct current source module by the high pressure setting component, and predetermined positive high voltage is as institute
State the predeterminated voltage of the positive supply binding post of detector；Meanwhile described control unit by from the feedback component by
The working state signal of the positive high voltage DC source module transfer is judged, if normal, then controls the switch control assembly
Start to the positive high voltage DC source module for power supply, if abnormal or do not work, powers off；
The negative high voltage DC source module status：
The high voltage direct current source module is exported predetermined negative high-pressure delivery and component is arranged to the high pressure by described control unit,
The high pressure setting component is further conveyed to the negative high voltage direct current source module, and predetermined negative high voltage is as output to the detection
The predeterminated voltage of the negative supply binding post of device；Meanwhile described control unit passes through to being born by described from the feedback component
High voltage direct current source module transmission working state signal judged, if normal, then control the switch control assembly start to
The negative high voltage DC source module for power supply powers off if abnormal or do not work.
One embodiment according to the present utility model, high pressure setting component include high pressure setting D/A conversion unit and
High pressure setting signal conditioning unit, the high pressure setting D/A conversion unit are coupled described control unit, and number is arranged in the high pressure
The high pressure setting signal conditioning unit will be converted from goal-selling voltage value signal and be transmitted to mould converting unit, through adjusting
Voltage value after reason is conveyed to the high voltage direct current source module, and the high voltage direct current source module, which exports, gives detector voltage wiring
Preset high-voltage value is transported to the setting pin of the high voltage direct current source module by column, the high pressure setting signal conditioning unit；
One embodiment according to the present utility model, the switch control assembly includes being coupled being used for for described control unit
Control the switching circuit of solid-state relay, and the solid-state relay by switching circuit control and the control solid-state relay
The power supply part of device.
One embodiment according to the present utility model, the feedback component include coming from the high voltage direct current source for improving
The feedback signal conditioning unit of module by signal and by the feedback signal carry out analog-to-digital conversion and be transmitted to described control unit and
Thus feedback modulus converting unit circuitry operating conditions judged.
Some embodiments according to the present utility model, the protection circuit further include host computer and are used for single in the control
First communication unit communicated between the host computer.
Preferably, the host computer setting highest protects voltage ", the setting of the highest protection voltage, which can allow, to be input to
Voltage on detector is no more than this protection voltage, further ensures the protection to detector.
High voltage direct current source module involved in this case includes feedback pin (FB), and pin is arranged（VREF）, feeder ear
（VIN）, high-pressure side（HV）, the feedback pin is connected with the feedback component, the setting pin and the high pressure setting group
Part is connected, and the feeder ear is connected with the switch control assembly, the high tension terminal phase of the high-pressure side and the detector
Connection, if the high voltage direct current source module is positive high voltage direct current source module, high-pressure side is positive high voltage end, just high with the detector
Crimping terminal is connected, if the high voltage direct current source module is negative high voltage direct current source module, high-pressure side is negative high-voltage end, and described
Detector negative high voltage binding post is connected.
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 utility model.Show in this specification everywhere this
The statement of meaning property is not necessarily referring to identical embodiment.Moreover, when describing specific component, structure or spy in conjunction with any embodiment
When point, advocated, component, structure or feature all fall within people in the art in conjunction with as the realization of other embodiments
Within the scope of member.
Although multiple illustrative examples with reference to the utility model carry out specific embodiment of the present utility model
Detailed description, it must be understood that those skilled in the art can be designed that various other improvement and embodiment, these change
It will be fallen within the spirit and scope of the utility model principle into embodiment.Specifically, in aforementioned disclosure, attached drawing and power
Within the scope of profit requires, rational modification can be made in terms of the arrangement that parts and/or sub-combination are laid out and changed
Into without departing from the spirit of the utility model.In addition to the variations and modifications in terms of parts and/or layout, range is by institute
Attached claim and its equivalent limit.
Claims (7)
1. a kind of mass spectrometer detector high tension protection circuit, which is characterized in that including control unit, high voltage direct current source module is used
In the high pressure setting component for controlling the high voltage direct current source module output predetermined high pressure and being connected with described control unit, for controlling
The switch control assembly powered to the high voltage direct current source module is made, and the high voltage direct current source module communications status is fed back
To the feedback component of described control unit, high voltage direct current source module communications status feedback is passed to institute by the feedback component
Control unit is stated, is carried out judging whether integrated circuit is that state is normal, and controls the switch control in turn by described control unit
Component processed is powered to the high voltage direct current source module, while high pressure setting component controls the high voltage direct current source module
Predetermined high pressure value is exported, if described control unit judges that the integrated circuit is normal, the voltage for inputting the detector is just
Constant value, if described control unit judges that the integrated circuit is abnormal or does not work, the voltage for inputting the detector is 0.
2. mass spectrometer detector high tension protection circuit according to claim 1, which is characterized in that high voltage direct current 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 high voltage direct current source module is exported predetermined positive high voltage and is conveyed to the high pressure setting component by described control unit, described
Predetermined positive high voltage is further conveyed to the positive high voltage direct current source module by high pressure setting component, and predetermined positive high voltage is as the inspection
Survey the predeterminated voltage of the positive supply binding post of device；Meanwhile described control unit by from the feedback component by described
The working state signal of positive high voltage DC source module transfer is judged, if normal, is then controlled the switch control assembly and is started
To the positive high voltage DC source module for power supply, if abnormal or do not work, power off；
The negative high voltage DC source module status：
The high voltage direct current source module is exported predetermined negative high-pressure delivery and component is arranged to the high pressure by described control unit, described
High pressure setting component is further conveyed to the negative high voltage direct current source module, and predetermined negative high voltage is as output to the detector
The predeterminated voltage of negative supply binding post；Meanwhile described control unit by from the feedback component by the negative high voltage
The working state signal of DC source module transfer is judged, if normal, is then controlled the switch control assembly and is started to described
Negative high voltage DC source module for power supply powers off if abnormal or do not work.
3. according to the mass spectrometer detector high tension protection circuit of any one of claims 1 or 2, which is characterized in that described
High pressure setting component includes high pressure setting D/A conversion unit and high pressure setting signal conditioning unit, and the high pressure setting digital-to-analogue turns
It changes unit and is coupled described control unit, the high pressure setting D/A conversion unit will be turned from goal-selling voltage value signal
Change and be transmitted to the high pressure setting signal conditioning unit, it is conditioned after voltage value be conveyed to the high voltage direct current source module, institute
It states high voltage direct current source module and exports and give detector voltage binding post.
4. according to the mass spectrometer detector high tension protection circuit of any one of claims 1 or 2, which is characterized in that described
Switch control assembly includes the switching circuit for controlling solid-state relay of connection described control unit, and by switch electricity
The solid-state relay of road control and the power supply part of the control solid-state relay.
5. according to the mass spectrometer detector high tension protection circuit of any one of claims 1 or 2, which is characterized in that described
Feedback component includes for improving feedback signal conditioning unit from the high voltage direct current source module signal and by the feedback
Signal carries out analog-to-digital conversion and feedback modulus that is being transmitted to described control unit and thus being judged circuitry operating conditions turns
Change unit.
6. mass spectrometer detector high tension protection circuit according to claim 1, which is characterized in that the protection circuit also wraps
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, which is characterized in that the host computer setting is most
Height protection voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721502230.3U CN207801455U (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 |
|---|---|---|---|
| CN201721502230.3U CN207801455U (en) | 2017-11-13 | 2017-11-13 | A kind of mass spectrometer detector high tension protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207801455U true CN207801455U (en) | 2018-08-31 |
Family
ID=63284601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721502230.3U Active CN207801455U (en) | 2017-11-13 | 2017-11-13 | A kind of mass spectrometer detector high tension protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207801455U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107809102A (en) * | 2017-11-13 | 2018-03-16 | 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 CN201721502230.3U patent/CN207801455U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107809102A (en) * | 2017-11-13 | 2018-03-16 | 江苏天瑞仪器股份有限公司 | A kind of mass spectrometer detector high tension protection circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4982087B2 (en) | Mass spectrometer and mass spectrometry method | |
| CN102290315B (en) | Ion source suitable for flight time mass spectrometer | |
| CN207801455U (en) | A kind of mass spectrometer detector high tension protection circuit | |
| CN107078653B (en) | Mass spectrometer | |
| CN106601584A (en) | Atmospheric pressure magnetic enhancement and magnetic confinement DC glow discharge ion source | |
| CN104241077A (en) | Normal pressure micro glow discharge desorption mass spectrum ion source based on magnetic field constraint and mass spectrometer | |
| CN107809102A (en) | A kind of mass spectrometer detector high tension protection circuit | |
| CN108684131A (en) | High-frequency ac rotational slide arc discharging plasma generating system for methane dry reforming | |
| CN106898538B (en) | Mass ion source | |
| CN104124131A (en) | Mass spectrum ion source and mass spectrometer | |
| CN108140536B (en) | Liquid sample introduction system for ion source and analysis system | |
| CN207800546U (en) | A kind of mass spectrometer detector high-pressure door protection circuit | |
| CN103499788A (en) | Operating device for disconnection test of mining disconnector | |
| CN110441637A (en) | A kind of ion blower high pressure monitoring device | |
| CN207367917U (en) | A kind of icp ms vacuum lens electric power system | |
| CN107768228A (en) | A kind of mass spectrometer detector high-pressure door protection circuit | |
| CN101666857A (en) | Device for durability tests of automotive air-conditioning controller buttons | |
| JPWO2017056182A1 (en) | Liquid sample introduction system and analysis system for ion source | |
| CN102313776A (en) | Ion mobility spectrometry | |
| CN102507720A (en) | Method for detecting NO (nitric oxide) content in exhaled gas of human body | |
| CN103219220B (en) | For generation of mass spectrometric apparatus and the method for plasma and reaction between ions | |
| CN202796850U (en) | Ion optical-lens packaging device | |
| CN103035472B (en) | Mass spectrometer and dynamic lens plate | |
| CN108899757A (en) | A kind of laser for having the function of electric current and having delayed laser power supply system | |
| CN107887251A (en) | A kind of ion molecule reaction mass spectrometer system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |