CN101592694A - Embedded photoelectric spectrum analyzer - Google Patents
Embedded photoelectric spectrum analyzer Download PDFInfo
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- CN101592694A CN101592694A CN 200910067195 CN200910067195A CN101592694A CN 101592694 A CN101592694 A CN 101592694A CN 200910067195 CN200910067195 CN 200910067195 CN 200910067195 A CN200910067195 A CN 200910067195A CN 101592694 A CN101592694 A CN 101592694A
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Abstract
The invention provides the measurement mechanism of portable integrated photoelectric spectrum analyzer.It comprises optical unit and electronic unit; With photoelectric detector (12) is measurand, open by flush bonding processor-ARM9 (18) control single chip computer controller (17) and then control figure switch (14), the light signal that signal amplification unit (15) is gathered photoelectric detector (12) amplifies delivers to A/D converter (16), singlechip controller (17) control A/D converter (16) is finished digital-to-analog conversion and data is transferred to flush bonding processor-ARM9 (18) by serial ports, executive routine carries out data fitting and processing, obtain the spectral pattern and the photoelectric characteristic curve of tested photoelectric detector (12), and the result is presented on the liquid crystal touch screen (19).It can be applied to teaching and detect with product.Its volume is little, need not computing machine, and is easy to use.
Description
Technical field
The present invention relates to embedded photoelectric spectrum analyzer.
Background technology
Continuous development and people's continually developing along with photoelectric technology to the photoelectric device product with perfect, the application of photovoltaic more and more is deep in the daily life, and photoelectric detector for example photodiode, phototriode, photoresistance, photoelectric cell etc. is widely used in fields such as military, civilian, industrial, scientific research and medical science.And the photoelectric spectrum characteristic is to estimate the key property index of photoelectric detector performance, has only known about the attribute of corresponding photoelectric detector, just can make its better application and development in every field.Simultaneously, be accompanied by popularizing of these basic photoelectric detectors, in the teaching of understanding and study photoelectricity theory, people pay attention to the real meaning to the photoelectric characteristic of photoelectric detector and spectral characteristic more, rather than only are confined to the description of formula and curvilinear coordinates on the books.Utilize the vivid by experiment photoelectric spectrum characteristic of clearly observing of electricity knowledge and optics general knowledge to demonstrate suitable necessity, the photoelectric characteristic and the spectral characteristic of research, measuring light electrical part, provide the scientific evaluation of photoelectric device quality, photoelectric device design and application are extremely important.In recent years, how measure, estimate the photoelectric spectrum characteristic of photoelectric detector, become important topic of photoelectric characteristic that the workers of the company that is worth being engaged in photoelectric device production and research photoelectric device further investigate with a kind of easy, accurate, practical method.Yet, the photoelectric spectrum measuring method of conventional photodetectors part all by the production company of photoelectric device voluntarily design circuit measure alone, on the market some test products have also appearred simultaneously, though the measuring principle of using similarly, but tested object mostly is not a photoelectric detector itself, and relatively heavier.So a kind of fully have crucial meaning at the instrument of the photoelectric spectrum characteristic of measuring photoelectric detector to the quality monitoring of carrying out photoelectric device and Aided Design etc.
Photoelectric detector photoelectric spectrum characteristic theory is quite ripe, and it has not been minority at home that this theoretical foundation is applied to testing tool.The photoelectric instrument series E-OInstruments that matches all photoelectricity utilizes the spectrum of material and the direct corresponding relation of its internal component, structure, motion state or surface state, just can obtain the inside and outside information of material by spectral measurement, though in obtaining the process of spectral characteristic, used the corresponding photo detector part, instrument at be the spectral analysis of different material material.Included different photoelectric device characteristic tests and optical demonstration experiment at the CSY-GLGD01 photoelectric characteristic comprehensive experiment table that photoelectric characteristic is measured, mainly used towards teaching.
Though more than two kinds of products all based on the photoelectric spectrum characteristic, but have nothing in common with each other at the field, the former is intended to measurement light source or different material spectral characteristic, though latter's coverage is very wide, comprising the photoelectric spectrum characteristic test of photoelectric device, but testing table is heavy and based on the theoretical research of imparting knowledge to students, be not suitable for the Characteristics Detection to special photoelectric detector.When the special detection precision that requires photoelectric detector, more than two kinds of instruments obviously be not suitable for, and not portable.(list of references: the research of Zhu Hui photoelectric characteristic integration test experimental system)
Summary of the invention
In order to solve the problem that prior art exists, the invention provides the measurement mechanism of portable integrated photoelectric spectrum analyzer.
As shown in Figure 1, the invention provides embedded photoelectric spectrum analyzer and comprise optical unit and electronic unit;
Described optical unit comprises light source 3, concave mirror 4, grating 5 and concave mirror 6;
Described electronic unit comprises stepping electricity 9, photoelectric detector 12, electric-motor drive unit 13, digital switch 14, signal amplification unit 15, A/D converter 16, singlechip controller 17, flush bonding processor-ARM918 and liquid crystal touch screen 19;
Described flush bonding processor-ARM9 18 is equipped with WINCE operating system, and the working procedure of this embedded photoelectric spectrum analyzer is stored among flush bonding processor-ARM9 18, and its program flow diagram as shown in Figure 2;
Light beam that described light source 3 sends incides concave mirror 4 through entrance slit, concave mirror 4 with beam reflection to grating 5; Grating 5 is fixed in above the base 10, and stepper motor 9 is fixed in below this base 10, and magnet steel 11 is fixed on the stepper motor 9; Described flush bonding processor-ARM9 18 sends instructions by working procedure and rotates to the single 13 control step motors 9 of motor-driven, and stepper motor 9 rotates and drives magnet steel 11, base 10 and top grating 5 rotations thereof;
Limit switch 7, limit switch 8 essence are Hall switch, determine rotational angle and the initial position and the final position of grating 5 by the magnetic signal of inductive magnetic steel 11, the rotational angle in initial position and final position is 117 degree among the present invention, and the magnetic signal of sensing is converted to flush bonding processor-ARM9 18 that electronic unit is given in the electric signal loopback, the rotation round about after definite grating 5 turns to the final position of flush bonding processor-ARM9 18 control electric-motor drive units 13; Go round and begin again;
The wavelength optical signals of separating through grating 5 converges on the photoelectric detector 12 by second concave mirror 6 again; Digital switch 14 is opened, the light signal that signal amplification unit 15 is gathered described photoelectric detector 12 amplifies delivers to A/D converter 16, singlechip controller 17 control A/D converters 16 are finished digital-to-analog conversion, and data are transferred to flush bonding processor-ARM9 18 by serial ports finish subsequent treatment, flush bonding processor-ARM9 18 shows the photoelectricity or the curve of spectrum with data processing and on liquid crystal touch screen 19.
As shown in Figure 2, introduce the program circuit that is kept at embedded photoelectric spectrum analyzer among flush bonding processor-ARM9 18 below.
After starting beginning step 20, the operator carries out initialization step 21, at first carry out the parameter setting step, the operator is with selected measuring element kind, device analysis characteristic, collection number of samples information input flush bonding processor-ARM9 18, angle with these number of samples decision grating 5 per steps rotations, total rotational angle of whole measuring process is 117 degree, and then the angle of rotation in 5 per steps of grating is that 117 degree are divided by number of samples; Simultaneously, initialization step 21 also will be finished the initialization of grating 5 positions in the electronic unit, be that flush bonding processor-ARM9 18 sends instructions to 5 rotations of electric-motor drive unit 13 indirect control step motors 9 drive gratings, when grating 5 turns to the final position, flush bonding processor-ARM9 18 that electronic unit is given in the electric signal loopback is sensed and be converted to the limited switch 8 of the magnetic signal that magnet steel 11 sends, flush bonding processor-ARM9 18 control electric-motor drive units 13 control motors 9 drive grating 5 and rotate round about, up to forwarding the initial position that limit switch 7 is determined to, initialization step 21 is finished;
Execution in step 22 judges whether start button is pressed; Judgement is sure, then carry out step 23; It is fixed to judge whether, then execution in step 24, continues to judge whether press, be sure up to judgement if detecting start button, carry out step 25;
Carry out step 19, under electric-motor drive unit 13 control, the collection number of samples that stepper motor 9 is selected according to the parameter setting step is determined a position stepping to;
Execution in step 24 judges whether flush bonding processor-ARM9 18 serial ports have data transmission to come in, and it is fixed to judge whether, then carry out step 24; Judgement is sure, then carry out step 25, handles image data and preserves result of calculation;
Execution in step 26, judge and whether gather number of samples less than preset value, judgement is sure, then execution in step 23, electric-motor drive unit 13 control step motors 9 step to a new position, grating 5 has rotated an angle, and the optical wavelength of exit slit changes, and photoelectric detector 12 is gathered new light signal; It is fixed to judge whether, then execution in step 27;
Execution in step 27 is carried out follow-up data processing, comprises that flush bonding processor-ARM9 18 carries out curve fitting, and obtains corresponding photoelectricity or spectral pattern, and shows corresponding data information;
Execution in step 28 is presented at data processed result on the liquid crystal touch screen 19, obtains the two-dimension spectrum curve;
Execution in step 29 judges whether to quit a program, and the operator is if continue the measurement of a new round, and then execution in step 20 is pressed and begun to measure button; Finish to measure, execution in step 30 withdraws from.
Beneficial effect: the embedded photoelectric spectrum analyzer measurement mechanism is to be measurand with photoelectric detector 12, photoelectric detector 12 is carried out the analysis and the description of photoelectric characteristic and spectral characteristic, open by flush bonding processor-ARM9 18 control single chip computer controllers 17 indirect control figure switches 14, the light signal that signal amplification unit 15 is gathered described photoelectric detector 12 amplifies delivers to A/D converter 16, singlechip controller 17 control A/D converters 16 are finished digital-to-analog conversion, and data are transferred to flush bonding processor-ARM9 18 by serial ports, flush bonding processor-ARM9 18 moves embedded photoelectric spectrum analyzer measurement mechanism executive routine simultaneously and carries out data fitting and processing, obtain the spectral pattern and the photoelectric characteristic curve of tested photoelectric detector 12, and the result is presented on the liquid crystal touch screen 19.It can be applied to teaching and detect with product.The embedded photoelectric spectrum analyzer volume is little, and work need not personal computer, and is easy to use.
Description of drawings
Fig. 1 is the system principle diagram of embedded photoelectric spectrum analyzer measurement mechanism.
Fig. 2 is an embedded photoelectric spectrum analyzer measurement mechanism software flow pattern.
Embodiment
Embodiment 1 embedded photoelectric spectrum analyzer measurement mechanism of the present invention comprises optical unit, two parts of electronic unit; Electronic unit is connected with optical unit by photoelectric detector 12, stepper motor 9; The light beam that light source 3 sends incides concave mirror 4 through entrance slit, and to grating 5, grating 5 is used to separate the light of different wave length to concave mirror 4 with beam reflection, and these different wavelengths of light converge to out optical slits by concave mirror 6 again; Grating 5 is connected with the stepper motor 9 of electronic unit by rotating base, and the stepping of electronic unit electricity 9 driven rotary bases 10 rotate, and grating 5 rotates thereupon simultaneously, by going out light that the optical slits outgoing goes out different wave length to the photoelectric detector 12 of electronic unit;
As shown in Figure 1, be the system principle diagram of embedded photoelectric spectrum analyzer measurement mechanism.The formation of optical unit is made up of light source 3, concave mirror 4, grating 5, concave mirror 6; The light beam that light source 3 sends incides concave mirror 4 through entrance slit, concave mirror 4 with beam reflection to grating 5, grating 5 is used to separate the light of different wave length, these different wavelengths of light converge to out optical slits by concave mirror 6 again, and the light of different wave length is received by the photoelectric detector 12 of electronic unit; The stepper motor 9 of electronic unit directly is fixed on below the base 10, drives base 10 and rotates, and realize that grating 5 rotates thereupon, thereby the light of realization different wave length is from the exit slit outgoing; Limit switch 7, limit switch 8 essence are Hall switch, determine rotational angle and the initial position and the final position of grating 5 by the magnetic signal of inductive magnetic steel 11, the rotational angle in initial position and final position is 117 degree among the present invention, and the magnetic signal of sensing is converted to flush bonding processor-ARM9 18 that electronic unit is given in the electric signal loopback, the rotation round about after definite grating 5 turns to the final position of flush bonding processor-ARM9 18 control electric-motor drive units 13; Go round and begin again; The formation of electronic unit as shown in Figure 1 comprises stepper motor 9, photoelectric detector 12, electric-motor drive unit 13, digital switch 14, signal amplification unit 15, A/D converter 16, singlechip controller 17, flush bonding processor-ARM9 18, liquid crystal touch screen 19; Described electric-motor drive unit 13 receives the control command control step motor 9 of flush bonding processor-ARM9 18, drive grating 5 rotations, photoelectric detector 12 is gathered wavelength optical signals simultaneously, when digital switch 14 is opened, the light signal that signal amplification unit 15 is gathered described photoelectric detector 12 amplifies delivers to A/D converter 16, singlechip controller 17 control A/D converters 16 are finished digital-to-analog conversion, and data are transferred to flush bonding processor-ARM9 18 by serial ports finish subsequent treatment, flush bonding processor-ARM9 18 draws out two-dimensional curve with data processing and on liquid crystal touch screen 19;
The executive routine of embedded photoelectric spectrum analyzer is kept among flush bonding processor-ARM918, and flush bonding processor-ARM9 18 is equipped with WINCE operating system, and the operational scheme of described executive routine as shown in Figure 2;
After starting beginning step 20, the operator carries out initialization step 21, at first carry out the parameter setting step, the operator is with selected measuring element kind, device analysis characteristic, collection number of samples information input flush bonding processor-ARM9 18, angle with these number of samples decision grating 5 per steps rotations, total rotational angle of whole measuring process is 117 degree, and then the angle of rotation in 5 per steps of grating is that 117 degree are divided by number of samples; Simultaneously, initialization step 21 also will be finished the initialization of grating 5 positions in the electronic unit, be that flush bonding processor-ARM9 18 sends instructions to 5 rotations of electric-motor drive unit 13 indirect control step motors 9 drive gratings, when grating 5 turns to the final position, flush bonding processor-ARM9 18 that electronic unit is given in the electric signal loopback is sensed and be converted to the limited switch 8 of the magnetic signal that magnet steel 11 sends, flush bonding processor-ARM9 18 control electric-motor drive units 13 control motors 9 drive grating 5 and rotate round about, up to forwarding the initial position that limit switch 7 is determined to, initialization step 21 is finished;
Flush bonding processor-ARM9 18 execution in step 21 judge whether start button is pressed; If judge it is sure, then carry out step 23; If it is fixed to judge whether, then execution in step 22, continue to judge whether press, be sure up to judgement if detecting start button, carry out step 23;
Carry out step 23, under electric-motor drive unit 13 controls, after the collection number of samples that stepper motor 9 is selected according to the parameter setting step determines to step to a position, flush bonding processor-ARM9 18 execution in step 24, judge whether flush bonding processor-ARM9 18 serial ports have data transmission to come in, if it is fixed to judge whether, then carry out step 24; If judge it is sure, then carry out step 25, handle image data and preserve result of calculation;
And then, flush bonding processor-ARM9 18 execution in step 26, judge and whether gather number of samples less than preset value, if judge it is sure, then execution in step 23, and electric-motor drive unit 13 control step motors 9 step to a new position, and grating 5 has rotated an angle, the optical wavelength of exit slit changes, and photoelectric detector 12 is gathered new light signal; If it is fixed to judge whether, then execution in step 27;
Execution in step 27 is carried out follow-up data processing, comprises that flush bonding processor-ARM9 18 carries out curve fitting, and obtains corresponding photoelectricity or spectral pattern, and shows corresponding data information;
Execution in step 28 is presented at data processed result on the liquid crystal touch screen 19, comprises showing the photoelectricity or the curve of spectrum, shows corresponding data result, and so far, once complete photoelectric spectrum specificity analysis is finished.
Execution in step 29 judges whether to quit a program, and the operator is if continue the measurement of a new round, and then execution in step 18 is pressed and begun to measure button, if finish measurement, then bolt down procedure; Execution in step 30 withdraws from.
Claims (1)
1, embedded photoelectric spectrum analyzer is characterized in that, it comprises optical unit and electronic unit; Described optical unit comprises light source (3), concave mirror (4), grating (5) and concave mirror (6);
Described electronic unit comprises stepping electricity (9), photoelectric detector (12), electric-motor drive unit (13), digital switch (14), signal amplification unit (15), A/D converter (16), singlechip controller (17), flush bonding processor-ARM9 (18) and liquid crystal touch screen (19); Described flush bonding processor-ARM9 is equipped with WINCE operating system in (18), and the working procedure of this embedded photoelectric spectrum analyzer is stored among flush bonding processor-ARM9 (18);
The light beam that described light source (3) sends incides concave mirror (4) through entrance slit, and concave mirror (4) arrives beam reflection on the grating (5); Grating (5) is fixed in above the base (10), and stepper motor (9) is fixed in below this base (10), and magnet steel (11) is fixed on the stepper motor (9); Described flush bonding processor-ARM9 (18) sends instructions by working procedure and rotates to single (13) control step motor of motor-driven (9), and stepper motor (9) rotates and drives magnet steel (11), base (10) and top grating (5) rotation thereof;
Limit switch (7), limit switch (8) essence are Hall switch, determine rotational angle and the initial position and the final position of grating (5) by the magnetic signal of inductive magnetic steel (11), the rotational angle in described initial position and final position is 117 degree, and the magnetic signal of sensing is converted to flush bonding processor-ARM9 (18) that electronic unit is given in the electric signal loopback, flush bonding processor-ARM9 (18) control electric-motor drive unit (13) is rotation round about after definite grating 5 turns to the final position; Go round and begin again;
The wavelength optical signals of separating through grating (5) converges on the photoelectric detector (12) by second concave mirror (6) again; Digital switch (14) is opened, the light signal that signal amplification unit (15) is gathered described photoelectric detector (12) amplifies delivers to A/D converter (16), singlechip controller (17) control A/D converter (16) is finished digital-to-analog conversion, and data are transferred to flush bonding processor-ARM9 (18) by serial ports finish subsequent treatment, flush bonding processor-ARM9 (18) goes up with data processing and at liquid crystal touch screen (19) and shows the photoelectricity or the curve of spectrum
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| CN 200910067195 CN101592694A (en) | 2009-06-30 | 2009-06-30 | Embedded photoelectric spectrum analyzer |
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| CN 200910067195 CN101592694A (en) | 2009-06-30 | 2009-06-30 | Embedded photoelectric spectrum analyzer |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841636A (en) * | 2010-04-20 | 2010-09-22 | 华东师范大学 | Photoelectric imaging system based on low-dimensional quantum structure photoelectricity sensor reading circuit |
| CN103278250A (en) * | 2013-05-19 | 2013-09-04 | 涿州迅利达创新科技发展有限公司 | High-speed pulse light energy detection device |
| CN105261271A (en) * | 2015-12-01 | 2016-01-20 | 长春理工大学 | Photoelectric comprehensive experiment platform |
| CN105371886A (en) * | 2015-10-28 | 2016-03-02 | 长春理工大学 | Embedded photoelectric and spectral feature integrated tester for photoelectric sensor |
| CN105954012A (en) * | 2016-06-29 | 2016-09-21 | 中国科学院半导体研究所 | Laser device linewidth measuring instrument based on arm9 embedded platform |
| CN112461879A (en) * | 2020-11-26 | 2021-03-09 | 佛山格捷锐信息技术有限公司 | Method and device for operating spectrum analyzer, spectrum analyzer and storage medium |
| CN112841947A (en) * | 2021-01-20 | 2021-05-28 | 河南科技大学第一附属医院 | Pharmacology learning system for pharmacy |
-
2009
- 2009-06-30 CN CN 200910067195 patent/CN101592694A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841636A (en) * | 2010-04-20 | 2010-09-22 | 华东师范大学 | Photoelectric imaging system based on low-dimensional quantum structure photoelectricity sensor reading circuit |
| CN101841636B (en) * | 2010-04-20 | 2011-11-02 | 华东师范大学 | Photoelectric imaging system based on low-dimensional quantum structure photoelectricity sensor reading circuit |
| CN103278250A (en) * | 2013-05-19 | 2013-09-04 | 涿州迅利达创新科技发展有限公司 | High-speed pulse light energy detection device |
| CN105371886A (en) * | 2015-10-28 | 2016-03-02 | 长春理工大学 | Embedded photoelectric and spectral feature integrated tester for photoelectric sensor |
| CN105371886B (en) * | 2015-10-28 | 2018-01-12 | 长春理工大学 | Embedded photoelectric sensor photoelectric spectrum test integrated apparatus |
| CN105261271A (en) * | 2015-12-01 | 2016-01-20 | 长春理工大学 | Photoelectric comprehensive experiment platform |
| CN105261271B (en) * | 2015-12-01 | 2018-06-15 | 长春理工大学 | A kind of photoelectric comprehensive experiment platform |
| CN105261271B8 (en) * | 2015-12-01 | 2018-08-07 | 长春理工大学 | A kind of photoelectric comprehensive experiment platform |
| CN105954012A (en) * | 2016-06-29 | 2016-09-21 | 中国科学院半导体研究所 | Laser device linewidth measuring instrument based on arm9 embedded platform |
| CN112461879A (en) * | 2020-11-26 | 2021-03-09 | 佛山格捷锐信息技术有限公司 | Method and device for operating spectrum analyzer, spectrum analyzer and storage medium |
| CN112841947A (en) * | 2021-01-20 | 2021-05-28 | 河南科技大学第一附属医院 | Pharmacology learning system for pharmacy |
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Open date: 20091202 |