CN107907213A - A kind of billboard with spectrum data gathering - Google Patents
A kind of billboard with spectrum data gathering Download PDFInfo
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- CN107907213A CN107907213A CN201711306183.XA CN201711306183A CN107907213A CN 107907213 A CN107907213 A CN 107907213A CN 201711306183 A CN201711306183 A CN 201711306183A CN 107907213 A CN107907213 A CN 107907213A
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- ccd
- circuit
- billboard
- photomultiplier
- controller module
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- 238000001228 spectrum Methods 0.000 title claims abstract description 34
- 238000005070 sampling Methods 0.000 claims abstract description 18
- 239000003990 capacitor Substances 0.000 claims description 18
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 4
- 230000005622 photoelectricity Effects 0.000 claims description 3
- 230000003595 spectral effect Effects 0.000 description 13
- 230000003287 optical effect Effects 0.000 description 10
- 238000005259 measurement Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000004611 spectroscopical analysis Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
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- 230000008569 process Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
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- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000001748 luminescence spectrum Methods 0.000 description 1
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- 239000000243 solution Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/2803—Investigating the spectrum using photoelectric array detector
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
The invention discloses a kind of billboard with spectrum data gathering, include billboard, spectra collection system is additionally provided with billboard, the spectra collection system includes CCD sampling heads, CCD sequence circuits, photomultiplier, high-voltage adjusting circuit, micro controller module, multidiameter option switch, A/D sample circuits and power module；The CCD sampling heads pass sequentially through A/D sample circuits with photomultiplier, multidiameter option switch connects micro controller module, the output terminal of the micro controller module connects the input terminal of CCD sampling heads by CCD sequence circuits, the output terminal of the micro controller module connects the input terminal of photomultiplier by high-voltage adjusting circuit, the power module is connected with CCD sampling heads, CCD sequence circuits, photomultiplier, high-voltage adjusting circuit, micro controller module, multidiameter option switch, A/D sample circuits respectively, for providing required electric energy.
Description
Technical field
The invention belongs to spectrum data gathering control field, more particularly to a kind of billboard with spectrum data gathering.
Background technology
At present, spectral instrument is the important component of optical instrument.It is Application Optics principle, to the structure of material
And component
Etc. the basic equipment for measuring, analyzing and handling, it is widely used in chemical analysis, agricultural production, environmental monitoring, faces
Bed inspection
Test, the field such as industrial detection and airborne and spaceborne RS.Generally grating beam splitting is used in micro spectrometer.Spectral instrument
Circuit part mainly includes line array CCD (charge coupling device) detector and peripheral circuit, further includes micro spectrometer data
Acquisition module, such as A/D conversions and Interface design etc..At work, light beam is entered inside micro spectrometer by slit, through recessed
Converged to after concave grating light splitting on line array CCD, CCD converts optical signals to electric signal and obtained and transmitted by data acquisition circuit
To host computer.
But traditional spectrometer is there is the deficiencies of volume is big, complicated, use environment is limited, expensive, no
The requirement for can meet Site Detection, monitoring in real time.For micro spectrometer, CCD devices dark current noise in itself, product
Between by stages electric charge injection noise, transfer during loss of charge noise go out in amplifier noise, signal digitized process there may be
High-frequency noise and signals transmission in the issuable random noise of environmental factor so that spectral power than it is relatively low when,
Curve is very coarse caused by noise, rough.In the application of micro spectrometer measurement Illuminant chromaticity, by micro spectrometer
The raw spectroscopic data of output is handled, and the chrominance information needed, so in order to improve the accuracy of handling result, has
Necessity pre-processes original spectral data, is minimized the influence of noise and garbage signal, improves micro spectrometer and surveys
Measure the accuracy of parameter.
Such as a kind of the portable spectrometer data acquisition process and display system of Application No. " 201410648647.5 ".
CPLD time sequence driving circuits produce drive pulse signal, clock pulse signal and address signal；CMOS photoelectronic detecting array and reading
Go out circuit and light beam to be measured is detected under the control of clock pulse signal, the optical signal detected is converted into electric signal, by electricity
Signal output is to frontend amplifying circuit；Signal is passed to AD conversion electricity by frontend amplifying circuit to electric signal after front-end processing
Road；A/D convertor circuit will turn under the control of clock pulse signal from the electric signal modulus after the processing that frontend amplifying circuit receives
Change digital signal into, and digital signal is passed into main control unit；Main control unit is received according to from CPLD time sequence driving circuits
Drive pulse signal, clock pulse signal and address signal, to memory send control store instruction；Memory is from CPLD
Time sequence driving circuit receives address signal, and digital signal is carried out under the timing control of the control store instruction of main control unit
Storage.
The and for example display methods and system of a kind of spectroscopic data of Application No. " 201510092639.1 ", this method bag
Include：Gather spectroscopic data, control shows the curve of spectrum and data list, shown in data list with the curve of spectrum corresponding to
Whole spectroscopic datas；Control shows a choice box on the curve of spectrum, control display vernier and a pair of of scale in choice box, and
The spectroscopic data corresponding to display and mark choice box, vernier and scale is controlled in data list.In the same of the display curve of spectrum
When, it can be exported with display data list window to contrast using two kinds as a result, vernier and scale are used to find phase rapidly at the same time
The spectroscopic data answered.At the same time for illustrative purposes, the optics chromatogram of corresponding broad sense is shown below the curve of spectrum.Separately
Outside, measure spectrum is recorded for information about for convenience of operator, configuration information records input window on the window of the curve of spectrum.
So as to the invention easy to display, lookup, to when measure spectrum data.
The content of the invention
The technical problems to be solved by the invention are provided and a kind of adopted with spectroscopic data for the deficiency of background technology
The billboard of collection, energy consumption of the present invention is low, uses photomultiplier to become a kind of preferable low noise with its distinctive dynode system
Amplifier.It can detect faint optical signal, and response speed is quickly, and effective area is also big, is widely used in light
The field of signal measurement.
The present invention uses following technical scheme to solve above-mentioned technical problem：
A kind of billboard with spectrum data gathering, comprising billboard, is additionally provided with spectra collection system on billboard, described
Spectra collection system includes CCD sampling heads, CCD sequence circuits, photomultiplier, high-voltage adjusting circuit, micro controller module, more
Road selecting switch, A/D sample circuits and power module；The CCD sampling heads and photomultiplier pass sequentially through A/D sampling electricity
Road, multidiameter option switch connection micro controller module, the output terminal of the micro controller module are connected by CCD sequence circuits
The input terminal of CCD sampling heads, the output terminal of the micro controller module connect the defeated of photomultiplier by high-voltage adjusting circuit
Enter end, the power module respectively with CCD sampling heads, CCD sequence circuits, photomultiplier, high-voltage adjusting circuit, microcontroller
Module, multidiameter option switch, the connection of A/D sample circuits, for providing required electric energy.
As a kind of further preferred scheme of the billboard with spectrum data gathering of the present invention, the high pressure adjustment electricity
Road includes termination power, amplitude limit detection circuit, amplitude limit bleeder circuit, regulator circuit；The termination power, amplitude limit detection circuit,
Amplitude limit bleeder circuit is sequentially connected, and the regulator circuit is connected with amplitude limit bleeder circuit, regulator circuit respectively.
As a kind of further preferred scheme of the billboard with spectrum data gathering of the present invention, the power module bag
Containing solar charging device, battery, voltage-stablizer, comparator, the solar charging device connects battery, for that will utilize the sun
Into battery, the battery is connected and loaded the power storage that can be produced by voltage-stablizer, electric needed for sensor node for providing
Can, the battery is connected with comparator, in real time being contrasted cell output voltage and setting value；And then control solar energy
The opening and closing of charging unit.
As a kind of further preferred scheme of the billboard with spectrum data gathering of the present invention, the regulator circuit bag
Chip containing regulated power supply, the first electrolytic capacitor, the second electrolytic capacitor, inductance, first resistor, second resistance and diode, it is described
The anode of first electrolytic capacitor connects one end of first resistor and the output terminal of amplitude limit bleeder circuit respectively, first resistor it is another
The input terminal of end connection regulated power supply chip, the anode of diode connect one end of inductance and the output of regulated power supply chip respectively
End, the other end of inductance and the anode for being connected the input terminal of amplifying circuit, the second electrolytic capacitor after second resistance series connection respectively, the
The cathode of one electrolytic capacitor, the cathode of the second electrolytic capacitor, the ground terminal of regulated power supply chip, cathode and the ground of diode connect
Connect.
As a kind of further preferred scheme of the billboard with spectrum data gathering of the present invention, the photomultiplier
Chip model be H10721-210.
The present invention compared with prior art, has following technique effect using above technical scheme：
1st, the present invention utilizes the spectroscopic acquisition system of the composition such as microcontroller and A/D devices MAX120, and A/D is controlled by microcontroller
Different sample frequencys is produced, for the collection of photomultiplier and the CCD spectral signal exported, effectively improves spectrum number
According to the accuracy of collection；
2nd, energy consumption of the present invention is low, uses photomultiplier to become a kind of preferable low noise amplification with its distinctive dynode system
Device.It can detect faint optical signal, and response speed is quickly, and effective area is also big, is widely used in optical signal
The field of measurement.
Brief description of the drawings
Fig. 1 is the structure principle chart of the present invention；
Fig. 2 is power module structure schematic diagram of the present invention；
Fig. 3 is regulator circuit circuit diagram of the present invention.
Embodiment
Technical scheme is described in further detail below in conjunction with the accompanying drawings：
A kind of billboard with spectrum data gathering, comprising billboard, is additionally provided with spectra collection system on billboard, such as schemes
Shown in 1, the spectra collection system includes CCD sampling heads, CCD sequence circuits, photomultiplier, high-voltage adjusting circuit, micro-control
Device module, multidiameter option switch, A/D sample circuits and power module processed；The CCD sampling heads and photomultiplier pass sequentially through
A/D sample circuits, multidiameter option switch connection micro controller module, the output terminal of the micro controller module pass through CCD sequential
Circuit connects the input terminal of CCD sampling heads, and the output terminal of the micro controller module connects photoelectricity times by high-voltage adjusting circuit
Increase pipe input terminal, the power module respectively with CCD sampling heads, CCD sequence circuits, photomultiplier, high-voltage adjusting circuit,
Micro controller module, multidiameter option switch, the connection of A/D sample circuits, for providing required electric energy.
The high-voltage adjusting circuit includes termination power, amplitude limit detection circuit, amplitude limit bleeder circuit, regulator circuit；It is described
Termination power, amplitude limit detection circuit, amplitude limit bleeder circuit are sequentially connected, the regulator circuit respectively with amplitude limit bleeder circuit, steady
Volt circuit connects.
As shown in Fig. 2, the power module includes solar charging device, battery, voltage-stablizer, comparator, the sun
Energy charging unit connection battery, for that will utilize the power storage of solar energy generation, into battery, the battery will pass through voltage-stablizer
Connection load, for providing electric energy needed for sensor node, the battery is connected with comparator, for battery to be exported electricity in real time
Pressure and setting value are contrasted；And then control the opening and closing of solar charging device.
As shown in figure 3, the regulator circuit includes regulated power supply chip, the first electrolytic capacitor, the second electrolytic capacitor, electricity
Sense, first resistor, second resistance and diode, the anode of first electrolytic capacitor connect one end and the limit of first resistor respectively
The output terminal of width bleeder circuit, the input terminal of the other end connection regulated power supply chip of first resistor, the anode difference of diode
One end of inductance and the output terminal of regulated power supply chip are connected, the other end of inductance with being connected amplification respectively after second resistance series connection
The anode of the input terminal of circuit, the second electrolytic capacitor, the cathode of the first electrolytic capacitor, the cathode of the second electrolytic capacitor, voltage stabilizing electricity
The ground terminal of source chip, the cathode of diode are connected to ground.
The chip model of the photomultiplier is H10721-210.
Wherein, the chip model of the photomultiplier is H10721-210, the chip model of the analog-to-digital conversion module
For MAX120, the micro controller module uses AVR series monolithics, and the display module is LCD display.
The present invention utilizes the spectroscopic acquisition system of the composition such as microcontroller and A/D devices MAX120, is controlled by microcontroller
A/D produces different sample frequencys, for the collection of photomultiplier and the CCD spectral signal exported, effectively improves light
The accuracy of modal data collection；Energy consumption of the present invention is low, uses photomultiplier to become a kind of preferable with its distinctive dynode system
Low-noise amplifier.It can detect faint optical signal, and response speed is quickly, and effective area is also big, extensive
Field applied to optical signal measurement.
In spectral measurement, photomultiplier and CCD are commonly used as photoelectric converter.Surveyed in slow change, high-precision spectrum
PMT is used in amount；Spectral signal when being changed over time for flash lamp, fluorescence and phosphorescence equal strength then uses CCD.PMT and
The signal form of CCD outputs is different：Photomultiplier output is continuous analog signal；CCD outputs are video arteries and veins
Rush signal.Due to exporting the difference of signal, corresponding signal acquisition circuit is also not quite similar.System of the present invention is by setting
Determine the different conditions of controlling switch, by monolithic machine testing, judgement and perform corresponding operation, complete to multi-form input signal
Collection.
Since CCD pixel physical dimensions are small, precision is high, there are optical-integral-time and signal store function, therefore, can be used for
Carry out spectral measurement.The light that measured light is sent falls on grating planar through slit, after grating dispersion on CCD pixels into
Picture, the position correspondences of each pixels of CCD wavelength different after light dispersion.What CCD was exported is the vision signal of measurand,
The size of each discrete voltage signal correspond to the power that the photosensitive member receives light intensity in vision signal, and signal output
Sequential then corresponds to the order of the photosensitive first positions of CCD.Ccd output signal is sampled by turn by sample circuit, according to sampling
Digit, so that it may which to know the wavelength where signal, and the amplitude of signal is then the spectral energy of the wavelength.So, as long as to mesh
Mark is once sampled, so that it may to obtain the spectral distribution curve in a wavelength range, thus can be used for measuring flash of light
The transient luminescence spectrum such as lamp.
Photomultiplier becomes a kind of preferable low-noise amplifier with its distinctive dynode system.It can detect pole
Faint optical signal, and response speed is quickly, and effective area is also big, is widely used in the field of optical signal measurement.Photoelectricity
Multiplier tube output is a preferable current source, and an external load resistance, passes through electricity of the measuring signal electric current in load
Pressure drop, that is, can obtain spectral signal.
Multidiameter option switch, A/D sample circuits, memory, photomultiplier, high-voltage adjusting circuit composition.We design
Signal acquisition circuit can be used for two kinds of detectors.For different detectors, microcontroller is operated in different states, utilizes
Same A/D sample circuits, complete the collection of signal, can meet spectral measurement requirement.
Those skilled in the art of the present technique are it is understood that unless otherwise defined, all terms used herein（Including skill
Art term and scientific terminology）With the identical meaning of the general understanding with the those of ordinary skill in fields of the present invention.Also
It should be understood that those terms such as defined in the general dictionary should be understood that with the context of the prior art
The consistent meaning of meaning, and unless defined as here, will not be explained with the implication of idealization or overly formal.
Above example is merely illustrative of the invention's technical idea, it is impossible to protection scope of the present invention is limited with this, it is every
According to technological thought proposed by the present invention, any change done on the basis of technical solution, each falls within the scope of the present invention
Within.Embodiments of the present invention are explained in detail above, but present invention is not limited to the embodiments described above, in ability
In the knowledge that domain those of ordinary skill possesses, various changes are made on the premise of can also or else departing from present inventive concept
Change.
Claims (5)
1. a kind of billboard with spectrum data gathering, includes billboard, it is characterised in that：Spectrum is additionally provided with billboard
Acquisition system, the spectra collection system include CCD sampling heads, CCD sequence circuits, photomultiplier, high-voltage adjusting circuit, micro-
Controller module, multidiameter option switch, A/D sample circuits and power module；The CCD sampling heads and photomultiplier lead to successively
A/D sample circuits, multidiameter option switch connection micro controller module are crossed, when the output terminal of the micro controller module passes through CCD
Sequence circuit connects the input terminal of CCD sampling heads, and the output terminal of the micro controller module connects photoelectricity by high-voltage adjusting circuit
The input terminal of multiplier tube, the power module are electric with CCD sampling heads, CCD sequence circuits, photomultiplier, high pressure adjustment respectively
Road, micro controller module, multidiameter option switch, the connection of A/D sample circuits, for providing required electric energy.
A kind of 2. billboard with spectrum data gathering according to claim 1, it is characterised in that：The high pressure adjustment
Circuit includes termination power, amplitude limit detection circuit, amplitude limit bleeder circuit, regulator circuit；The termination power, amplitude limit detection electricity
Road, amplitude limit bleeder circuit are sequentially connected, and the regulator circuit is connected with amplitude limit bleeder circuit, regulator circuit respectively.
A kind of 3. billboard with spectrum data gathering according to claim 1, it is characterised in that：The power module
Comprising solar charging device, battery, voltage-stablizer, comparator, the solar charging device connects battery, for that will utilize too
The power storage that sun can produce is into battery, and the battery is connected by voltage-stablizer and loaded, for providing needed for sensor node
Electric energy, the battery are connected with comparator, in real time being contrasted cell output voltage and setting value；And then control the sun
The opening and closing of energy charging unit.
A kind of 4. billboard with spectrum data gathering according to claim 1, it is characterised in that：The regulator circuit
Include regulated power supply chip, the first electrolytic capacitor, the second electrolytic capacitor, inductance, first resistor, second resistance and diode, institute
The anode for stating the first electrolytic capacitor connects one end of first resistor and the output terminal of amplitude limit bleeder circuit respectively, first resistor it is another
One end connects the input terminal of regulated power supply chip, the anode of diode connect respectively inductance one end and regulated power supply chip it is defeated
Outlet, the other end of inductance are connected the anode of the input terminal of amplifying circuit, the second electrolytic capacitor respectively after connecting with second resistance,
The cathode of first electrolytic capacitor, the cathode of the second electrolytic capacitor, the ground terminal of regulated power supply chip, cathode and the ground of diode connect
Connect.
A kind of 5. billboard with spectrum data gathering according to claim 1, it is characterised in that：The photomultiplier transit
The chip model of pipe is H10721-210.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711306183.XA CN107907213A (en) | 2017-12-11 | 2017-12-11 | A kind of billboard with spectrum data gathering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711306183.XA CN107907213A (en) | 2017-12-11 | 2017-12-11 | A kind of billboard with spectrum data gathering |
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| Publication Number | Publication Date |
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| CN107907213A true CN107907213A (en) | 2018-04-13 |
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| CN201711306183.XA Pending CN107907213A (en) | 2017-12-11 | 2017-12-11 | A kind of billboard with spectrum data gathering |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406694A (en) * | 2014-11-14 | 2015-03-11 | 上海电机学院 | Portable spectrometer data collecting, processing and displaying system |
| CN104734297A (en) * | 2015-03-31 | 2015-06-24 | 无锡市崇安区科技创业服务中心 | Battery charging control device based on voltage-stabilizing circuit |
| 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 |
| CN105790608A (en) * | 2016-03-24 | 2016-07-20 | 苏州合欣美电子科技有限公司 | Three-phase power supply with rectification and voltage stabilization functions |
| CN106604494A (en) * | 2016-11-17 | 2017-04-26 | 江苏智石科技有限公司 | Industrial factory building lamplight terminal control system |
-
2017
- 2017-12-11 CN CN201711306183.XA patent/CN107907213A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406694A (en) * | 2014-11-14 | 2015-03-11 | 上海电机学院 | Portable spectrometer data collecting, processing and displaying system |
| CN104734297A (en) * | 2015-03-31 | 2015-06-24 | 无锡市崇安区科技创业服务中心 | Battery charging control device based on voltage-stabilizing circuit |
| 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 |
| CN105790608A (en) * | 2016-03-24 | 2016-07-20 | 苏州合欣美电子科技有限公司 | Three-phase power supply with rectification and voltage stabilization functions |
| CN106604494A (en) * | 2016-11-17 | 2017-04-26 | 江苏智石科技有限公司 | Industrial factory building lamplight terminal control system |
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Application publication date: 20180413 |