CN102967369B - There is the mixed light spectrometer of CCD spectroscopic acquisition system - Google Patents
There is the mixed light spectrometer of CCD spectroscopic acquisition system Download PDFInfo
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- CN102967369B CN102967369B CN201210499538.2A CN201210499538A CN102967369B CN 102967369 B CN102967369 B CN 102967369B CN 201210499538 A CN201210499538 A CN 201210499538A CN 102967369 B CN102967369 B CN 102967369B
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Abstract
The mixed light spectrometer with CCD spectroscopic acquisition system provided by the invention, comprises multiple CCD module, interface module, control module, photomultiplier and host computer.Photomultiplier is connected with control module, and each CCD module is connected with host computer successively with interface module, control module respectively.The advantage that the present invention has the mixed light spectrometer of CCD spectroscopic acquisition system is: each CCD module is controlled by independently CPU, data and respective algorithms can separate configurations, fast operation algorithm is flexible, effectively improves accuracy and the stability of image data.Spectral signal carries out process conversion in front end, decrease the coupling of interference, the integrality of signal is good.Interface module networking is simple, and maintenance is exchanged convenient.CCD image data and photomultiplier image data are realized seamless link by control module, and the data obtained carries out unifying layout, and each channel data does not add differentiation, and upper computer analyzing software is without the need to doing any change.
Description
Technical field
The present invention relates to spectral technique field, particularly a kind of mixed light spectrometer with CCD spectroscopic acquisition system.
Background technology
Spectrometer is divided into photomultiplier spectrometer and CCD spectrometer.Photomultiplier can Accurate Analysis super low loading element, but its volume is large, installs quantity by limited space; CCD spectrometer can accomplish full analysis of spectrum, but its detection limit is not as photomultiplier.Transmission spectra analytical instrument is all pure photomultiplier or CCD spectrometer, and its cost is all higher.
In addition, the CCD spectroscopic acquisition system of current CCD spectrometer is all also concentrated by single cpu (FPGA, DSP) control CCD image data to process, arithmetic speed is slow, each CCD parameter can not freely configure, very flexible, the simulating signal that CCD exports could to CPU process through a section lead transmission, and signal integrity is poor, is subject to external interference.
Also there is not the high-end spectrometer with high combination property now.
Summary of the invention
Object of the present invention is exactly the above-mentioned defect that will overcome prior art, a kind of mixed light spectrometer with CCD spectroscopic acquisition system is provided, realize CCD spectroscopic acquisition system and photomultiplier gathers spectral signal simultaneously, and there is good data-handling capacity and data stability, effective raising separate unit spectrometer analysis performance, the simultaneously cost of lowering apparatus.
For achieving the above object, the mixed light spectrometer with CCD spectroscopic acquisition system provided by the invention, comprise host computer and photomultiplier, also comprise multiple CCD module and an interface module and a control module, described photomultiplier is connected with described control module, described in each, CCD module is connected with host computer successively with described interface module, control module respectively, wherein:
Described CCD module, starts to gather spectral signal after receiving the order of described control module collection signal, and automatically reads the address of described interface module distribution, and the data after process are delivered to described control module;
Data after described CCD resume module for being CCD module assignment address described in each, and by CCD module composition RS485 network described in each, are delivered to described control module by described interface module;
Described control module, for synchronous each described CCD module, coordinate with light source and gather spectral signal on time, control CCD module described in each start image data and receive described CCD module handled after data, the data assemblies then gathered with described photomultiplier and be transferred to described host computer through network interface.
The present invention has the mixed light spectrometer of CCD spectroscopic acquisition system, wherein said CCD module comprises CCD, filter amplifier, level translator and the ARM single-chip microcomputer with A/D, described CCD is connected described ARM single-chip microcomputer through described filter amplifier with A/D, described ARM single-chip microcomputer connects described CCD through described level translator, described ARM single-chip microcomputer sends driving pulse to described CCD, the data of described ccd output signal after described ARM single-chip microcomputer output processing.
The present invention has the mixed light spectrometer of CCD spectroscopic acquisition system, wherein said CCD module is provided with 16 pieces, comprise the 3rd chip that model is ILX554B respectively, model is the 4th chip of AD8021, model is the 5th chip of ADUC7022BCPZ, tenth chip of model to be the 6th chip of TXB0104DR and model be SP3074EEN, wherein: the 30th pin of the 5th chip is connected with the 8th pin of the 6th chip, 29th pin of the 5th chip is connected with the 2nd pin of the 6th chip respectively, 28th pin of the 5th chip is connected with the 3rd pin of the 6th chip respectively, 27th pin of the 5th chip is connected with the 4th pin of the 6th chip respectively, three pins export the drive pulse signal of CCD simultaneously, 13rd pin of the 6th chip outputs to the 11st pin of the 3rd chip, 12nd pin of the 6th chip outputs to the 5th pin of the 3rd chip, 11st pin of the 6th chip outputs to the 4th pin of the 3rd chip, level conversion is realized by the 6th chip, control the collection that the 3rd chip realizes spectral signal, standard analog voltage signal after conversion exports from the 1st pin of the 3rd chip, the signal exported receives the 2nd pin of the 4th chip, analog voltage signal after the 4th chip process outputs to the 36th pin of the 5th chip by the 6th pin of the 4th chip, 5th chip obtains the required raw data analyzed and outputs to the 5th pin of the tenth chip from the 21st pin, tenth chip is receiving data are transformed into the normal data signals of RS485, from the 9th, 10 pin parallel outputs, and by one of JP20 interface JP0-JP15 interface being distributed to interface module.
The present invention has the mixed light spectrometer of CCD spectroscopic acquisition system, it be ADP3330ART is the second chip and 17 Wiring port JP0-JP16 ports that wherein said interface module comprises model, second chip is each CCD module assignment address, the control command that control module sends enters interface module through JP16, each CCD module is sent to respectively again through each JP0-JP15 interface, signal after the process of CCD module acquires is connected to one of JP0-JP15 interface through JP20 interface, then is connected to the JP17 interface of control module through JP16 interface.
The present invention has the mixed light spectrometer of CCD spectroscopic acquisition system, it be RCM5700 is the first chip that wherein said control module comprises model, 9th chip of model to be the 8th chip of MAX3074EESA and model be AD1674JR, the CCD spectral signal of the JP16 interface output of interface module delivers to the JP17 interface of control module by JP18 interface, and the 5th pin of the 8th chip is connected to through the 4th pin of JP17 interface, the 6th pin through JP17 interface is connected to the 6th pin of the 8th chip, the 8th pin through JP17 interface is connected to the 7th pin of the 8th chip, the 10th pin through JP17 interface is connected to the 8th pin of the 8th chip, the RS485 signal received is transformed into UART standard signal by the 8th chip, the 23rd pin of the first chip is outputted to from the 3rd pin, photomultiplier output signal is through the 13rd pin input the 9th chip, after digital-to-analog conversion, from the 16th of the 9th chip, 24 pins in parallel output to the 39th pin of the first chip, from the 17th of the 9th chip, 25 pins in parallel output to the 40th pin of the first chip, from the 18th of the 9th chip, 26 pins in parallel output to the 41st pin of the first chip, from the 19th of the 9th chip, 27 pins in parallel output to the 42nd pin of the first chip, the 35th pin of the first chip is outputted to from the 20th pin of the 9th chip, the 36th pin of the first chip is outputted to from the 21st pin of the 9th chip, the 37th pin of the first chip is outputted to from the 22nd pin of the 9th chip, the 38th pin of the first chip is outputted to from the 23rd pin of the 9th chip, the ccd signal received and photomultiplier tube signal process generate and analyze data by the first chip, and from the 3rd, 5 pin parallel outputs are to the 4th of JP18 interface the, 5 pins, analyze data and be sent to host computer through netting twine.
The present invention has the advantage of the mixed light spectrometer of CCD spectroscopic acquisition system and good effect is: owing to have employed multiple CCD module, interface module and control module, each CCD module is controlled by independently CPU, data and respective algorithms can separate configurations, fast operation algorithm is flexible, effectively improves accuracy and the stability of image data.Spectral signal carries out process conversion in front end, decrease the coupling of interference, the integrality of signal is good.Interface module networking is simple, and maintenance is exchanged convenient.CCD image data and photomultiplier image data are realized seamless link by control module, and the data obtained carries out unifying layout, and each channel data does not add differentiation, and upper computer analyzing software is without the need to doing any change.
Be described in detail with reference to accompanying drawing below in conjunction with embodiment.
Accompanying drawing explanation
Fig. 1 is the structured flowchart that the present invention has the mixed light spectrometer of CCD spectroscopic acquisition system;
Fig. 2 is the circuit theory diagrams of CCD module;
Fig. 3 is the circuit theory diagrams of interface module;
Fig. 4 is the circuit theory diagrams of control module.
Embodiment
The embodiment that the present invention has the mixed light spectrometer of CCD spectroscopic acquisition system is described in detail below in conjunction with accompanying drawing.
With reference to Fig. 1, the mixed light spectrometer with CCD spectroscopic acquisition system provided by the invention, comprises multiple CCD module, interface module, control module, photomultiplier and host computer.Photomultiplier is connected with control module, and each CCD module is connected with host computer successively with interface module, control module respectively.Wherein CCD module starts to gather spectral signal after receiving the order of control module collection signal, and the address of automatic fetch interface module assignment, the data after process are delivered to control module; Interface module is used for for each CCD module assignment address, and by each CCD module composition RS485 network, the data after CCD resume module is delivered to control module; Control module is used for synchronous each CCD module, coordinate with light source and gather spectral signal on time, control each CCD module start image data and receive collection CCD module handled after data, the data assemblies then gathered with photomultiplier and be transferred to host computer through network interface.
Have in the present invention in the mixed light spectrometer of CCD spectroscopic acquisition system, be connected with 16 pieces or more CCD modules.CCD module comprises CCD, filter amplifier, level translator and the ARM single-chip microcomputer with A/D.The relevant configured parameter such as CCD picture dot position, single acquisition time, algorithms selection relevant to analytical wavelengths is solidificated in the FLASH of CCD module, automatically reads when exciting at every turn.CCD is connected ARM single-chip microcomputer through filter amplifier with A/D, CCD module is by ARM Single-chip Controlling, ARM single-chip microcomputer connects CCD through level translator, driving pulse is sent to CCD, ARM single-chip microcomputer sends driving pulse to CCD, ccd output signal carries out corresponding algorithm process after ARM single-chip microcomputer analog to digital conversion, analytical wavelengths is extracted, the data after last output processing.
See Fig. 2, have in the present invention in the mixed light spectrometer of CCD spectroscopic acquisition system, each CCD module comprise the 3rd chip U3 that model is ILX554B, the tenth chip U10 tetra-functional chips and associated peripheral circuits that the 6th chip U6 that the 5th chip U5 that the 4th chip U4 that model is AD8021, model are ADUC7022BCPZ, model are TXB0104DR and model are SP3074EEN.3rd chip U3 completes ccd signal collection, and the 4th chip U4 completes filter and amplification, and the 5th chip U5 completes A/D conversion, and the 6th chip U6 completes level conversion.Concrete connection is: the 30th pin of the 5th chip U5 is connected with the 8th pin of the 6th chip U6, control the enable of the 6th chip U6,5th chip U5 the 29th, 28,27 pins respectively with the 2nd of the 6th chip U6,3,4 pins are connected, three pins export the drive pulse signal of CCD simultaneously, level conversion is realized by the 6th chip U6, standard signal after conversion from the 13rd of the 6th chip U6,12,11 pins output to respectively the 3rd chip U3 the 11st, 5,4 pins, control the collection that the 3rd chip U3 realizes spectral signal.3rd chip U3 exports from the 1st pin after spectral signal being converted to the voltage signal of simulation, the analog voltage signal exported receives the 2nd pin of the 4th chip U4, filter and amplification and the related operation of signal is realized through the 4th chip U4 and peripheral circuit thereof, effective reduction signal noise, increase signal amplitude, improve resolution, the analog voltage signal handled well outputs to the 36th pin of the 5th chip U5 by the 6th pin of the 4th chip U4, analog voltage signal realizes A/D in the 5th chip U5 inside and changes and carry out corresponding algorithm process, analytical wavelengths is extracted, finally obtain the required raw data analyzed.Gained raw data outputs to the 5th pin of the tenth chip U10 from the 21st pin, tenth chip U10 is receiving data are transformed into the normal data signals of RS485, from the 9th, the 10 pin parallel outputs of the tenth chip U10, by one of JP20 interface JP0-JP15 interface being distributed to interface module.
See Fig. 3, have in the mixed light spectrometer of CCD spectroscopic acquisition system in the present invention, interface module is ADP3330ART primarily of model is that the second chip U2 and 17 Wiring port JP0-JP16 forms.Interface module plays the function served as bridge of control module and CCD module.Second chip U2 and peripheral circuit are responsible for each CCD module assignment address, and the control command that control module sends enters interface module through JP16, then is sent to each CCD module respectively through interface JP0-JP15.Signal after the process of CCD module acquires is connected to one of JP0-JP15 interface through JP20 interface, then is connected to the JP17 interface of control module through JP16 interface.
See Fig. 4, have in the mixed light spectrometer of CCD spectroscopic acquisition system in the present invention, control module is responsible for controlling each module coordination work of spectrometer.Control module primarily of model be RCM5700 be the first chip U1, model is the 8th chip U8 of MAX3074EESA, model be AD1674JR is the 9th chip U9 tri-functional chips and associated peripheral circuits composition.
The CCD spectral signal of the JP16 interface output of interface module delivers to the JP17 interface of control module by JP18 interface, respectively through JP17 interface the 4th, 6,8,10 pins be connected to the 8th chip U8 the 5th, 6,7,8 pins, 8th chip U8 is transformed into UART standard signal the RS485 signal received, and outputs to the 23rd pin of the first chip U1 from the 3rd pin.Photomultiplier output signal is through the 13rd pin input of the 9th chip U9, after the 9th chip U9 digital-to-analog conversion, the 35-42 pin of the first chip U1 is outputted to respectively respectively from the 16-27 pin of the 9th chip U9, first chip U1 is receiving ccd signal and photomultiplier tube signal carry out unifying process, generate and analyze data, last from the 3rd, 5 pin parallel outputs to the 4th of JP18 interface the, 5 pins, JP18 interface delivers to host computer processes and displays analyzing data through netting twine.
First chip U1 is the host CPU of spectrometer, and adopt the embedded UC/OS operating system of high-speed CPU to form, control CCD module starts data acquisition, completes the synchronous of each CCD module, coordinates gather spectral signal on time with light source.Because CCD image data and photomultiplier image data realize seamless link, the data obtained carries out unifying layout, and each CCD module data does not add differentiation, and upper computer analyzing software is without the need to doing any change.
Meanwhile, control module controls other controls of light source activation, argon cleaning and system through optical fiber.
Embodiment recited above is only be described the preferred embodiment of the present invention, not limits the spirit and scope of the present invention.Under the prerequisite not departing from design concept of the present invention; the various modification that this area ordinary person makes technical scheme of the present invention and improvement; all should drop into protection scope of the present invention, the technology contents of request protection of the present invention, all records in detail in the claims.
Claims (4)
1. one kind has the mixed light spectrometer of CCD spectroscopic acquisition system, comprise host computer and photomultiplier, it is characterized in that: also comprise multiple CCD module and an interface module and a control module, described photomultiplier is connected with described control module, described in each, CCD module is connected with host computer successively with described interface module, control module respectively, wherein:
Described CCD module, starts to gather spectral signal after receiving the order of described control module collection signal, and automatically reads the address of described interface module distribution, and the data after process are delivered to described control module;
Data after described CCD resume module for being CCD module assignment address described in each, and by CCD module composition RS485 network described in each, are delivered to described control module by described interface module;
Described control module, for synchronous each described CCD module, coordinate with light source and gather spectral signal on time, control CCD module described in each start image data and receive described CCD module handled after data, the data assemblies then gathered with described photomultiplier and be transferred to described host computer through network interface;
Described CCD module comprises the 3rd chip (U3) that model is ILX554B respectively, model is the 4th chip (U4) of AD8021, model is the 5th chip (U5) of ADUC7022BCPZ, tenth chip (U10) of model to be the 6th chip (U6) of TXB0104DR and model be SP3074EEN, wherein: the 30th pin of the 5th chip (U5) is connected with the 8th pin of the 6th chip (U6), 29th pin of the 5th chip (U5) is connected with the 2nd pin of the 6th chip (U6) respectively, 28th pin of the 5th chip (U5) is connected with the 3rd pin of the 6th chip (U6) respectively, 27th pin of the 5th chip (U5) is connected with the 4th pin of the 6th chip (U6) respectively, three pins export the drive pulse signal of CCD simultaneously, 13rd pin of the 6th chip (U6) outputs to the 11st pin of the 3rd chip (U3), 12nd pin of the 6th chip (U6) outputs to the 5th pin of the 3rd chip (U3), 11st pin of the 6th chip (U6) outputs to the 4th pin of the 3rd chip (U3), level conversion is realized by the 6th chip (U6), control the collection that the 3rd chip (U3) realizes spectral signal, standard analog voltage signal after conversion exports from the 1st pin of the 3rd chip (U3), the signal exported receives the 2nd pin of the 4th chip (U4), analog voltage signal after the 4th chip (U4) process is outputted to the 36th pin of the 5th chip (U5) by the 6th pin of the 4th chip (U4), 5th chip (U5) obtains the required raw data analyzed and outputs to the 5th pin of the tenth chip (U10) from the 21st pin, tenth chip (U10) is receiving data are transformed into the normal data signals of RS485, from the 9th, 10 pin parallel outputs, and by one of JP20 interface JP0 interface-JP15 interface being distributed to interface module,
It be RCM5700 is the first chip (U1) that described control module comprises model, 9th chip (U9) of model to be the 8th chip (U8) of MAX3074EESA and model be AD1674JR, the CCD spectral signal of the JP16 interface output of described interface module delivers to the JP17 interface of described control module by JP18 interface, and the 5th pin of described 8th chip (U8) is connected to through the 4th pin of JP17 interface, the 6th pin through JP17 interface is connected to the 6th pin of described 8th chip (U8), the 8th pin through JP17 interface is connected to the 7th pin of described 8th chip (U8), the 10th pin through JP17 interface is connected to the 8th pin of described 8th chip (U8), the RS485 signal received is transformed into UART standard signal by described 8th chip (U8), the 23rd pin of described first chip (U1) is outputted to from the 3rd pin, photomultiplier output signal is through described 9th chip (U9) of the 13rd pin input, after digital-to-analog conversion, from the 16th of described 9th chip (U9), 24 pins in parallel output to the 39th pin of described first chip (U1), from the 17th of described 9th chip (U9), 25 pins in parallel output to the 40th pin of described first chip (U1), from the 18th of described 9th chip (U9), 26 pins in parallel output to the 41st pin of described first chip (U1), from the 19th of described 9th chip (U9), 27 pins in parallel output to the 42nd pin of described first chip (U1), the 35th pin of described first chip (U1) is outputted to from the 20th pin of described 9th chip (U9), the 36th pin of described first chip (U1) is outputted to from the 21st pin of described 9th chip (U9), the 37th pin of described first chip (U1) is outputted to from the 22nd pin of described 9th chip (U9), the 38th pin of described first chip (U1) is outputted to from the 23rd pin of described 9th chip (U9), the ccd signal received and photomultiplier tube signal process generate and analyze data by described first chip (U1), and from the 3rd, 5 pin parallel outputs are to the 4th of JP18 interface the, 5 pins, analyze data and be sent to host computer through netting twine.
2. the mixed light spectrometer with CCD spectroscopic acquisition system according to claim 1, it is characterized in that: wherein said CCD module comprises CCD, filter amplifier, level translator and the ARM single-chip microcomputer with A/D, described CCD is connected described ARM single-chip microcomputer through described filter amplifier with A/D, described ARM single-chip microcomputer connects described CCD through described level translator, described ARM single-chip microcomputer sends driving pulse to described CCD, the data of described ccd output signal after described ARM single-chip microcomputer output processing.
3. the mixed light spectrometer with CCD spectroscopic acquisition system according to claim 1 and 2, is characterized in that: wherein said CCD module is provided with 16 pieces.
4. the mixed light spectrometer with CCD spectroscopic acquisition system according to claim 3, it is characterized in that: it be ADP3330ART is the second chip (U2) and 17 Wiring port JP0 interface-JP16 interfaces that wherein said interface module comprises model, described second chip (U2) is CCD module assignment address described in each, the control command that described control module sends enters described interface module through JP16 interface, each described CCD module is sent to respectively again through each JP0 interface-JP15 interface, signal after the process of described CCD module acquires is connected to one of JP0 interface-JP15 interface through JP20 interface, the JP17 interface of described control module is connected to again through JP16 interface.
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| CN103698008B (en) * | 2013-12-24 | 2015-09-16 | 安徽三兴检测有限公司 | A kind of spectrometer for industrial field |
| CN103776533A (en) * | 2014-01-26 | 2014-05-07 | 上海交通大学 | Multi-photography synchronous spectrum collection system for measuring temperature and concentration of multi-component welding arc |
| CN104236712A (en) * | 2014-09-30 | 2014-12-24 | 江南大学 | Two-way high-speed linear-array CCD (charge coupled device) data acquisition circuit |
| CN104390702B (en) * | 2014-10-31 | 2016-10-19 | 上海光谱仪器有限公司 | The CCD miniature spectrometer system of employing xenon flash light source and collecting method without hardware synchronization |
| CN105157834A (en) * | 2015-08-31 | 2015-12-16 | 无锡伊佩克科技有限公司 | Spectral data acquisition system based on CCD and photomultiplier |
| CN109187369A (en) * | 2018-08-02 | 2019-01-11 | 佛山市方垣机仪设备有限公司 | A kind of oil plant detection device and detection method applying associated detection technique |
| CN114264620A (en) * | 2021-11-24 | 2022-04-01 | 淮阴工学院 | Portable spectral data analysis system and method based on python language |
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