CN102064078A - Quadrupole rod mass spectrometric test and control system and method based on virtual instrument technology - Google Patents
Quadrupole rod mass spectrometric test and control system and method based on virtual instrument technology Download PDFInfo
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- CN102064078A CN102064078A CN 201010529343 CN201010529343A CN102064078A CN 102064078 A CN102064078 A CN 102064078A CN 201010529343 CN201010529343 CN 201010529343 CN 201010529343 A CN201010529343 A CN 201010529343A CN 102064078 A CN102064078 A CN 102064078A
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Abstract
The invention discloses a quadrupole rod mass spectrometric test and control system and method based on a virtual instrument technology. The system comprises an upper computer and a quadrupole rod mass spectrometric test device, wherein the quadrupole rod spectrometric test device comprises at least one solenoid valve, at least one pneumatic valve, a quadrupole rod analyzer, a molecular pump, an ion pump, a vacuum unit, a universal serial bus-controller area network (USB-CAN) converter and an ultrahigh vacuum cavity; the upper computer comprises a main control module, a data signal analyzing module, a storage module, an input/output (I/O) card, a USB interface and a display; and the main control module comprises a valve on-off control module and a serial communication module. The invention can make the most of the advantages of simplicity, interface friendliness and the like of LabVIEW programming based on the virtual instrument technology as well as the advantages of the quadrupole rod mass analyzer, and realizes a mass spectrometric test and control system which has higher cost performance and simple test and control program and is easy to debug and maintain.
Description
Technical field
The present invention relates to analysis and survey control technology in instrument and the field of instrumentation technology, in particular a kind of quadrupole rod mass spectrum TT﹠C system and method based on virtual instrument technique.
Background technology
At present, domestic quadrupole rod mass spectrum TT﹠C system generally all adopts the hardware device of price comparison costliness, and adopts existing quadrupole rod mass spectrum TT﹠C system also to have measurement and control program complexity, difficult in maintenance, the not high shortcoming of flexibility.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The object of the present invention is to provide a kind of quadrupole rod mass spectrum TT﹠C system and method, be intended to solve existing quadrupole rod mass spectrum TT﹠C system expensive hardware, problems such as measurement and control program complexity based on virtual instrument technique.
Technical scheme of the present invention is as follows:
A kind of quadrupole rod mass spectrum TT﹠C system based on virtual instrument technique, it comprises host computer and quadrupole rod mass spectrometric measurement equipment, and described quadrupole rod mass spectrometric measurement equipment comprises at least one electromagnetically operated valve, at least one pneumatic operated valve, a quadrupole rod analyzer, a part pump, an ionic pump, a vacuum unit, a USB-CAN transducer and a ultrahigh vacuum cavity; Described host computer comprises main control module, data signal analysis module, memory module, I/O card, USB interface and display, comprises valve switch control module and serial communication modular in the described main control module,
Wherein, each electromagnetically operated valve is connected with a pneumatic operated valve, the disconnection and the closure of the height control pneumatic operated valve by current potential, and described pneumatic operated valve connects ultrahigh vacuum cavity, and described electromagnetically operated valve connects the I/O card of host computer; Described quadrupole rod connects the serial communication modular of ultrahigh vacuum cavity and host computer; One end of described molecular pump, ionic pump and vacuum unit respectively is connected to described ultrahigh vacuum cavity, and the other end all is connected to the CAN bus, and described CAN bus connects the USB-CAN transducer, and described USB-CAN transducer connects the USB interface of host computer;
Described data signal analysis module, memory module are connected described main control module with USB interface, the described valve switch control module of described I/O card connection.
Described quadrupole rod mass spectrum TT﹠C system based on virtual instrument technique, wherein, described quadrupole rod mass spectrometric measurement equipment also comprises a zirconium aluminium asepwirator pump, and described zirconium aluminium asepwirator pump one end connects described ultrahigh vacuum cavity, and the other end is connected to the CAN bus.
Described quadrupole rod mass spectrum TT﹠C system based on virtual instrument technique, wherein, described quadrupole rod mass spectrometric measurement equipment also comprises a mechanical pump, and described mechanical pump one end connects described ultrahigh vacuum cavity, and the other end is connected to the CAN bus.
Described quadrupole rod mass spectrum TT﹠C system based on virtual instrument technique, wherein, described host computer also comprises automatic control module and manual control module, and manually control is coupled to main control module with automatic controlled stage, is convenient to system's debugging and sectionalization test in use.
Described quadrupole rod mass spectrum TT﹠C system based on virtual instrument technique, wherein, described I/O card is a data collecting card, is used to carry out control of Electric potentials.
Described quadrupole rod mass spectrum TT﹠C system based on virtual instrument technique, wherein, described vacuum unit adopts multilevel hierarchy.
Described quadrupole rod mass spectrum TT﹠C system based on virtual instrument technique, wherein, described electromagnetically operated valve is 10.
Described quadrupole rod mass spectrum TT﹠C system based on virtual instrument technique, wherein, described host computer is a computer.
A kind of quadrupole rod mass spectrum investigating method based on virtual instrument technique wherein, may further comprise the steps:
Step 1: connect host computer and quadrupole rod mass spectrometric measurement equipment;
Step 2: start the main control module of host computer, the virtual instrument of display graphicsization in the display of host computer;
Step 3: start the valve switch control module in the main control module, control corresponding pneumatic operated valve by this valve switch control module and open, carry out vacuum drawn;
Step 4: start the serial communication modular in the operation main control module, dispose detection automatically and connect serial ports, carry out the serial ports test then and carry out data test by serial ports, and buffered results;
Step 5: the test data result whether decision preserves buffer memory;
Step 6: if need to change certain pneumatic operated valve, and then the pressure data of test after changing, can change by the valve switch control module that starts in the main control module, repeating step 4 and step 5 then be not if need then execution in step 7;
Step 7: finish the observing and controlling operation and log off.
Described quadrupole rod mass spectrum investigating method based on virtual instrument technique, wherein, the computer language of described investigating method is to adopt parallel graphic programming mode to write.
Beneficial effect of the present invention: the present invention is by guaranteeing under the situation of measuring accuracy, employing is based on the quadrupole rod mass spectrum TT﹠C system of virtual instrument technique, give full play to the advantages such as simple and friendly interface of virtual instrument technique LabVIEW programming, and the advantage of quadrupole rod mass spectrometer, realize that cost performance is higher, measurement and control program simple and be easy to the mass spectrum TT﹠C system of debugging and safeguarding.
Description of drawings
Fig. 1 is the schematic diagram based on the quadrupole rod mass spectrum TT﹠C system of virtual instrument technique that the embodiment of the invention provides;
Fig. 2 is the flow chart that the present invention is based on the quadrupole rod mass spectrum investigating method of virtual instrument technique.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, clear and definite, below develop simultaneously with reference to accompanying drawing that the present invention is described in more detail for embodiment.
Contrast other expensive mass spectrum TT﹠C system, what this TT﹠C system adopted is relatively cheap quadrupole rod mass spectrometric measurement equipment.By adopting quadrupole rod mass-spectrometric technique and solderless syndeton to realize the mass spectrum observing and controlling of ultra high vacuum, hardware configuration is simple relatively.
Referring to Fig. 1, described quadrupole rod mass spectrum TT﹠C system based on virtual instrument technique comprises host computer and quadrupole rod mass spectrometric measurement equipment.Described quadrupole rod mass spectrometric measurement equipment comprises at least one electromagnetically operated valve, at least one pneumatic operated valve, a quadrupole rod analyzer, a part pump, an ionic pump, a vacuum unit, a USB-CAN transducer and a ultrahigh vacuum cavity.Described host computer comprises main control module, data signal analysis module, memory module, I/O card, USB interface and display, comprises valve switch control module and serial communication modular in the described main control module.
Wherein, each electromagnetically operated valve is connected with a pneumatic operated valve, the disconnection and the closure of the height control pneumatic operated valve by current potential, and described pneumatic operated valve connects ultrahigh vacuum cavity, and described electromagnetically operated valve connects the I/O card of host computer.Described quadrupole rod connects the serial communication modular of ultrahigh vacuum cavity and host computer.One end of described molecular pump, ionic pump and vacuum unit respectively is connected to described ultrahigh vacuum cavity, and the other end all is connected to the CAN bus, and described CAN bus connects the USB-CAN transducer, and described USB-CAN transducer connects the USB interface of host computer.
Described data signal analysis module, memory module are connected described main control module with USB interface, the described valve switch control module of described I/O card connection.
Described quadrupole rod mass spectrometric measurement equipment also comprises a zirconium aluminium asepwirator pump, and described zirconium aluminium asepwirator pump one end connects described ultrahigh vacuum cavity, and the other end is connected to the CAN bus.
Described quadrupole rod mass spectrometric measurement equipment also comprises a mechanical pump, and described mechanical pump one end connects described ultrahigh vacuum cavity, and the other end is connected to the CAN bus.
Described host computer also comprises automatic control module and manual control module, and manually control is coupled to main control module with automatic controlled stage, is convenient to system's debugging and sectionalization test in use.
The vacuum unit that is used for testing adopts multilevel hierarchy, be aided with the zirconium aluminium asepwirator pump that selectivity is bled, reduced residual gas to greatest extent---the background that the inert gas mass number is measured, whole vacuum chamber comprises mechanical pump, molecular pump, ionic pump and zirconium aluminium asepwirator pump, and the test mode that makes whole system comprehensively, precisely.
Described host computer is a computer.Wherein, described I/O card directly links to each other with 10 electromagnetically operated valves, and each electromagnetically operated valve is connected with a pneumatic operated valve respectively, can control the disconnection and the closure of pneumatic operated valve by the height of CONTROLLED POTENTIAL; Described I/O card is to adopt the PCI-1762 data collecting card that grinds China to carry out control of Electric potentials, and described data collecting card is then controlled by the valve switch control module in the host computer.The computer by serial communication module is connected with the quadrupole rod analyzer, carry out serial communication by mass spectrometric measurement with quadrupole rod, calculate the electric current that function receives various mass spectrum correspondences in the vacuum chamber, and carry out pressure conversion, then can obtain it and work as fore pressure by the data signal analysis module.
Memory module in the host computer is used for store test results, and test result can preserve or append preservation at any time, is convenient to later comparative analysis.The cache size of test data suitably is provided with, and makes system can carry out long vacuum sampling and data record.
The quadrupole rod mass spectrum investigating method based on virtual instrument technique that the embodiment of the invention provides may further comprise the steps:
Step 1: connect host computer and quadrupole rod mass spectrometric measurement equipment;
Step 2: start the main control module of host computer, the virtual instrument of display graphicsization in the display of host computer;
Step 3: start the valve switch control module in the main control module, control corresponding pneumatic operated valve by this valve switch control module and open, carry out vacuum drawn;
Step 4: start the serial communication modular in the operation main control module, dispose detection automatically and connect serial ports, carry out the serial ports test then and carry out data test by serial ports, and buffered results;
Step 5: the test data result whether decision preserves buffer memory;
Step 6: if need to change certain pneumatic operated valve, and then the pressure data of test after changing, can change by the valve switch control module that starts in the main control module, repeating step 4 and step 5 then be not if need then execution in step 7;
Step 7: finish the observing and controlling operation and log off.
The computer language of described investigating method is to adopt parallel graphic programming mode to write.Be to adopt LabVIEW 8.6 to write in the present embodiment, described LabVIEW language is a kind of programming language based on graphic package, include subprograms such as rich data collection, data signal analysis and control, the user utilizes the method coding of establishment and call subroutine, make the program modularity of establishment, be easy to debugging, understand and safeguard, and programming is simple, directly perceived, therefore is specially adapted to the data test control system.In the display of host computer, demonstrate virtual patterned instrument, convenient directly debugging and maintenance.
The program control architecture compactness of described system, the control objective interface is simple.And the simultaneous operation of realization testing process.Manually debugging and sectionalization test in the device use are convenient in control and control cascade automatically.
Main program has been realized the dynamic operation of two big subprograms, valve switch control and serial communication, test and control dynamic operation can change the mode of controlling at any time in test process, and then test the data that obtain changing, be convenient to test result is carried out instant comparative study.
In order to overcome mass spectrum TT﹠C system control interface complexity; The deficiency that the program running time delay is bigger the invention provides a kind of new mass spectrum TT﹠C system system.This system can realize parameters such as mass spectral electric current, pressure are carried out observing and controlling with very high degree of precision under ultra high vacuum, and it can be applicable to following four aspects at least: the mensuration of rare gas quality in (1) solid material; (2) mensuration of oil gas basin thermal history and hydrocarbon source rock maturity; (3) secondary deposit and face of land process Study of Isotopic Geochronology; (4) continental crust degrades and the grand research that rises thermal history of orogenic belt.
Should be understood that application of the present invention is not limited to above-mentioned giving an example, for those of ordinary skills, can be improved according to the above description or conversion that all these improvement and conversion all should belong to the protection range of claims of the present invention.
Claims (10)
1. quadrupole rod mass spectrum TT﹠C system based on virtual instrument technique, it is characterized in that, comprise host computer and quadrupole rod mass spectrometric measurement equipment, described quadrupole rod mass spectrometric measurement equipment comprises at least one electromagnetically operated valve, at least one pneumatic operated valve, a quadrupole rod analyzer, a part pump, an ionic pump, a vacuum unit, a USB-CAN transducer and a ultrahigh vacuum cavity; Described host computer comprises main control module, data signal analysis module, memory module, I/O card, USB interface and display, comprises valve switch control module and serial communication modular in the described main control module,
Wherein, each electromagnetically operated valve is connected with a pneumatic operated valve, the disconnection and the closure of the height control pneumatic operated valve by current potential, and described pneumatic operated valve connects ultrahigh vacuum cavity, and described electromagnetically operated valve connects the I/O card of host computer; Described quadrupole rod connects the serial communication modular of ultrahigh vacuum cavity and host computer; One end of described molecular pump, ionic pump and vacuum unit respectively is connected to described ultrahigh vacuum cavity, and the other end all is connected to the CAN bus, and described CAN bus connects the USB-CAN transducer, and described USB-CAN transducer connects the USB interface of host computer;
Described data signal analysis module, memory module are connected described main control module with USB interface, the described valve switch control module of described I/O card connection.
2. the quadrupole rod mass spectrum TT﹠C system based on virtual instrument technique according to claim 1, it is characterized in that, described quadrupole rod mass spectrometric measurement equipment also comprises a zirconium aluminium asepwirator pump, and described zirconium aluminium asepwirator pump one end connects described ultrahigh vacuum cavity, and the other end is connected to the CAN bus.
3. the quadrupole rod mass spectrum TT﹠C system based on virtual instrument technique according to claim 1, it is characterized in that, described quadrupole rod mass spectrometric measurement equipment also comprises a mechanical pump, and described mechanical pump one end connects described ultrahigh vacuum cavity, and the other end is connected to the CAN bus.
4. the quadrupole rod mass spectrum TT﹠C system based on virtual instrument technique according to claim 1, it is characterized in that, described host computer also comprises automatic control module and manual control module, and manually control is coupled to main control module with automatic controlled stage, is convenient to system's debugging and sectionalization test in use.
5. the quadrupole rod mass spectrum TT﹠C system based on virtual instrument technique according to claim 1 is characterized in that described I/O card is a data collecting card, is used to carry out control of Electric potentials.
6. the quadrupole rod mass spectrum TT﹠C system based on virtual instrument technique according to claim 1 is characterized in that, described vacuum unit adopts multilevel hierarchy.
7. the quadrupole rod mass spectrum TT﹠C system based on virtual instrument technique according to claim 1 is characterized in that described electromagnetically operated valve is 10.
8. the quadrupole rod mass spectrum TT﹠C system based on virtual instrument technique according to claim 1 is characterized in that described host computer is a computer.
9. the quadrupole rod mass spectrum investigating method based on virtual instrument technique is characterized in that, may further comprise the steps:
Step 1: connect host computer and quadrupole rod mass spectrometric measurement equipment;
Step 2: start the main control module of host computer, the virtual instrument of display graphicsization in the display of host computer;
Step 3: start the valve switch control module in the main control module, control corresponding pneumatic operated valve by this valve switch control module and open, carry out vacuum drawn;
Step 4: start the serial communication modular in the operation main control module, dispose detection automatically and connect serial ports, carry out the serial ports test then and carry out data test by serial ports, and buffered results;
Step 5: the test data result whether decision preserves buffer memory;
Step 6: if need to change certain pneumatic operated valve, and then the pressure data of test after changing, can change by the valve switch control module that starts in the main control module, repeating step 4 and step 5 then be not if need then execution in step 7;
Step 7: finish the observing and controlling operation and log off.
10. the quadrupole rod mass spectrum investigating method based on virtual instrument technique according to claim 9 is characterized in that, the computer language of described investigating method is to adopt parallel graphic programming mode to write.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112189250A (en) * | 2018-05-31 | 2021-01-05 | 英国质谱公司 | Desk type time-of-flight mass spectrometer |
| US11879470B2 (en) | 2018-05-31 | 2024-01-23 | Micromass Uk Limited | Bench-top time of flight mass spectrometer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20040135080A1 (en) * | 2003-01-10 | 2004-07-15 | Zheng Ouyang | Rectilinear ion trap and mass analyzer system and method |
| CN101373695A (en) * | 2007-08-23 | 2009-02-25 | 岛津分析技术研发（上海）有限公司 | Method and apparatus for observing and controlling digital ion trap |
| CN201514925U (en) * | 2009-08-07 | 2010-06-23 | 王理 | Quadrupole mass spectrometer and mass spectrometer pole |
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2010
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040135080A1 (en) * | 2003-01-10 | 2004-07-15 | Zheng Ouyang | Rectilinear ion trap and mass analyzer system and method |
| CN101373695A (en) * | 2007-08-23 | 2009-02-25 | 岛津分析技术研发（上海）有限公司 | Method and apparatus for observing and controlling digital ion trap |
| CN201514925U (en) * | 2009-08-07 | 2010-06-23 | 王理 | Quadrupole mass spectrometer and mass spectrometer pole |
Non-Patent Citations (1)
| Title |
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| 《真空电子技术》 20010630 李繁,黄光周,刘雄英 基于虚拟仪器的氦质谱检漏仪监控系统设计 20-22 1-10 , 第3期 2 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112189250A (en) * | 2018-05-31 | 2021-01-05 | 英国质谱公司 | Desk type time-of-flight mass spectrometer |
| US11879470B2 (en) | 2018-05-31 | 2024-01-23 | Micromass Uk Limited | Bench-top time of flight mass spectrometer |
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| CN102064078B (en) | 2012-07-04 |
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