CN103411884A - Reference transmission dispersion sensitive spectral line detection device - Google Patents

Reference transmission dispersion sensitive spectral line detection device Download PDF

Info

Publication number
CN103411884A
CN103411884A CN2013102750506A CN201310275050A CN103411884A CN 103411884 A CN103411884 A CN 103411884A CN 2013102750506 A CN2013102750506 A CN 2013102750506A CN 201310275050 A CN201310275050 A CN 201310275050A CN 103411884 A CN103411884 A CN 103411884A
Authority
CN
China
Prior art keywords
processor
light emitting
emitting diode
sensing module
diaphragm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2013102750506A
Other languages
Chinese (zh)
Other versions
CN103411884B (en
Inventor
陈建明
徐启
孙全红
刘清欣
王亭岭
熊军华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
North China University of Water Resources and Electric Power
Original Assignee
North China University of Water Resources and Electric Power
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by North China University of Water Resources and Electric Power filed Critical North China University of Water Resources and Electric Power
Priority to CN201310275050.6A priority Critical patent/CN103411884B/en
Publication of CN103411884A publication Critical patent/CN103411884A/en
Application granted granted Critical
Publication of CN103411884B publication Critical patent/CN103411884B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

The invention relates to a reference transmission dispersion sensitive spectral line detection device which is capable of effectively solving the problems of high requirement on tester processing and assembling precision, high construction cost, large volume, long measuring time and poor anti-jamming capability. According to the technical scheme, the reference transmission dispersion sensitive spectral line detection device comprises a box body, a linear array CCD (Charge Coupled Device) sensing module and a linear photosensitive diode, a lens hood is arranged at the upper part of the box body, a transparent vessel is arranged in the middle in the box body, a light emitting diode is arranged on the left side of the transparent vessel, the linear photosensitive diode is connected with the light emitting diode through an optical fiber, a diaphragm is arranged on the right side of the transparent vessel, a dispersion optical grating is arranged on the right side of the diaphragm, the linear array CCD sensing module is arranged above the dispersion optical grating, the light emitting diode is connected with a drive circuit, the linear photosensitive diode is connected with a second processor, and the linear array CCD sensing module is connected with a first processor. The reference transmission dispersion sensitive spectral line detection device is skilled in structure, simple in manufacturing process, convenient to use, and capable of effectively solving the problems of high requirement on tester processing and assembling precision, high cost, large volume, long measuring time and poor anti-jamming capability.

Description

A kind of reference transmission dispersion sensitivity spectrum line detector
One, technical field
The present invention relates to liquid spectral measurement field, particularly a kind of reference transmission dispersion sensitivity spectrum line detector.
Two, background technology
At present, at some liquid residue substance detecting method, be in employing liquid phase spectrophotometer, owing in measuring process, there being rotatablely moving or linear movement of light-splitting device, to realize dispersion scanning, so tester processing, assembly precision require harsh, very high to conditional requests such as measurement environment vibration, horizontal stable degree, humitures, usually, instrument and equipment involves great expense, bulky, and Measuring Time is long, poor anti jamming capability, can only work under laboratory condition.Although some testers based on color sensitive sensor also occurred, improved the defect that needs the Dispersive Devices rotary scanning in the spectrophotometer measurement process, but for light source because the luminous intensity that power supply instability, temperature variation, luminescence efficiency decay etc. cause is unstable, cause the precision of measuring low, the poor problem of consistance does not well solve, particularly for the measurement that requires spectral profile, helpless especially.Therefore, provide and be well positioned to meet the requirement that various complicated on-the-spot test are used, for the emergent of some accidents or disaster scene, inspect fast method and apparatus especially, seem particularly important
Three, summary of the invention
For above-mentioned situation, for overcoming the defect of prior art, the present invention's purpose just is to provide a kind of reference transmission dispersion sensitivity spectrum line detector, can effectively solve tester processing, the assembly precision requirement is high, cost is high, volume is large, Measuring Time is long, the problem of poor anti jamming capability.
The technical scheme of its solution is, comprise casing, line array CCD sensing module and linear photosensor diode, light shield is equipped with on casing top, transparent utensil is housed in the middle of in casing, the transparent utensil left is equipped with light emitting diode, the linear photosensor diode is connected with light emitting diode through light transmitting fiber, the right-hand diaphragm that is equipped with of transparent utensil, the right-hand dispersion grating that is equipped with of diaphragm, the line array CCD sensing module is equipped with in dispersion grating top, the center of diaphragm and light emitting diode is on same axis, dispersion grating reflective surface is corresponding with the right side of transparent utensil and with the horizontal axis of diaphragm, become 135 to spend angles, light emitting diode is connected with driving circuit, the linear photosensor diode is connected with the second processor, the line array CCD sensing module is connected with first processor, first processor is connected with the 3rd processor respectively with the second processor, the 3rd processor is connected with four-processor, and four-processor is connected with display.
Said first processor, the second processor, the 3rd processor and four-processor are single-chip microcomputer.
Structure of the present invention is ingenious, and manufacturing process is simple, easy to use, can effectively solve tester processing, the assembly precision requirement is high, and cost is high, and volume is large, and Measuring Time is long, the problem of poor anti jamming capability.
Four, accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is optical measurement principle schematic of the present invention.
Five, embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further details.
By Fig. 1, Fig. 2 provides, apparatus of the present invention comprise casing, line array CCD sensing module and linear photosensor diode, light shield 3 is equipped with on casing 1 top, transparent utensil 5 is equipped with in the interior centre of casing 1, transparent utensil 5 lefts are equipped with light emitting diode 2, linear photosensor diode 4 is connected with light emitting diode 2 through light transmitting fiber 15, the right-hand diaphragm 7 that is equipped with of transparent utensil 5, the right-hand dispersion grating 8 that is equipped with of diaphragm 7, line array CCD sensing module 6 is equipped with in dispersion grating 8 tops, the center of diaphragm 7 and light emitting diode 2 is on same axis, dispersion grating 8 reflective surfaces are corresponding with the right side of transparent utensil 5 and with the horizontal axis of diaphragm 7, become 135 to spend angles, light emitting diode 2 is connected 9 with driving circuit, linear photosensor diode 4 is connected with the second processor 10, line array CCD sensing module 6 is connected with first processor 11, first processor 11 is connected with the 3rd processor 12 respectively with the second processor 10, the 3rd processor 12 is connected with four-processor 13, and four-processor 13 is connected with display 14.
Said first processor 11, the second processor 10, the 3rd processor 12 and four-processor 13 are single-chip microcomputer.
Service condition of the present invention is:
Light emitting diode 2 sends light, the liquid that transparent utensil is 5 li and light transmitting fiber 15 are accepted light simultaneously, the light of the liquid that the process transparent utensil is 5 li is radiated on dispersion grating 8 by diaphragm 7, after 8 reflections of dispersion grating, shine line array CCD sensing module 6, line array CCD sensing module 6 passes to signal in first processor 11, the V obtained after treatment i, pass to the 3rd processor 12; The light that light transmitting fiber 15 is accepted, to linear photosensor diode 4, changes into signal and passes in the second processor 10, obtains after treatment surveying luminous intensity E 2, pass to the 3rd processor 12, the three processors 12 and pass through actual measurement luminous intensity E 2Revise and obtain correction factor, then to line array CCD sensing module 6 each pixel V iMeasured value revise, revised linearization through four-processor 13 shows at display screen 14.
Computing formula is as follows:
E 2 = E 1 I 2 I 1 → S i = K i E 2 V i → S i = E 1 I 2 I 1 K i V i
For pixel, be the line array CCD of N, the i=1～N in following formula, wherein
S iThe gray-scale value scale value of-fluid to be measured i pixel, be testing result;
K iThe chromatogram absorption coefficient of-fluid to be measured i pixel, be given value;
V iThe output gray level value of-ccd sensor i pixel, be measured value;
E 1-standard sources light intensity, be given value;
E 2-actual measurement light source light intensity, be measured value;
I 1During-corresponding standard sources light intensity, the photocurrent of linear photosensor diode 4, be given value;
I 2During-corresponding actual measurement light source light intensity, the photocurrent of linear photosensor diode 4, be measured value.
The present invention is owing to adopting dispersion grating ledger line battle array CCD sensing module to substitute traditional scanning chromatic dispersion structure, make whole measuring process scan without mechanical rotation, thereby the ambient adaptability of instrument and the stability of measurement have greatly been improved, simultaneously, structure and method difference due to two kinds of spectral measurements, the former is height far away and the latter on signals collecting and data processing speed, and the common single colour measurement time is less than 2 seconds.
Structure of the present invention is ingenious, and manufacturing process is simple, easy to use, can effectively solve tester processing, the assembly precision requirement is high, and cost is high, and volume is large, and Measuring Time is long, the problem of poor anti jamming capability.

Claims (2)

1. reference transmission dispersion sensitivity spectrum line detector, comprise casing, line array CCD sensing module and linear photosensor diode, light shield (3) is equipped with on casing (1) top, transparent utensil (5) is housed in the middle of in casing (1), transparent utensil (5) left is equipped with light emitting diode (2), linear photosensor diode (4) is connected with light emitting diode (2) through light transmitting fiber (15), the right-hand diaphragm (7) that is equipped with of transparent utensil (5), the right-hand dispersion grating (8) that is equipped with of diaphragm (7), line array CCD sensing module (6) is equipped with in dispersion grating (8) top, the center of diaphragm (7) and light emitting diode (2) is on same axis, dispersion grating (8) reflective surface is corresponding with the right side of transparent utensil (5) and with the horizontal axis of diaphragm (7), become 135 to spend angles, light emitting diode 2 be connected with driving circuit (9), linear photosensor diode (4) is connected with the second processor (10), line array CCD sensing module (6) is connected with first processor (11), first processor (11) is connected with the 3rd processor (12) respectively with the second processor (10), the 3rd processor (12) is connected with four-processor (13), and four-processor (13) is connected with display (14).
2. reference transmission dispersion sensitivity spectrum line detector according to claim 1, is characterized in that, said first processor (11), the second processor (10), the 3rd processor (12) and four-processor (13) are single-chip microcomputer.
CN201310275050.6A 2013-07-03 2013-07-03 A kind of reference transmission dispersion sensitivity spectrum line detector Expired - Fee Related CN103411884B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310275050.6A CN103411884B (en) 2013-07-03 2013-07-03 A kind of reference transmission dispersion sensitivity spectrum line detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310275050.6A CN103411884B (en) 2013-07-03 2013-07-03 A kind of reference transmission dispersion sensitivity spectrum line detector

Publications (2)

Publication Number Publication Date
CN103411884A true CN103411884A (en) 2013-11-27
CN103411884B CN103411884B (en) 2016-05-11

Family

ID=49604911

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310275050.6A Expired - Fee Related CN103411884B (en) 2013-07-03 2013-07-03 A kind of reference transmission dispersion sensitivity spectrum line detector

Country Status (1)

Country Link
CN (1) CN103411884B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110987382A (en) * 2019-12-28 2020-04-10 上海唯视锐光电技术有限公司 Measuring equipment and measuring method for laser display color speckles

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6151112A (en) * 1997-11-17 2000-11-21 Innovative Lasers Corp. High-resolution, compact intracavity laser spectrometer
US20020031163A1 (en) * 2000-05-12 2002-03-14 Tedesco James M. Integrated external diode laser module particularly suited to raman spectroscopy
JP2006171024A (en) * 2004-12-10 2006-06-29 Olympus Corp Multi-point fluorescence spectrophotometry microscope and multi-point fluorescence spectrophotometry method
CN101241069A (en) * 2008-03-11 2008-08-13 武汉大学 Color dispersion -type multifunctional Hadamard transform microscopical imaging spectrometer
CN101782505A (en) * 2010-03-04 2010-07-21 江苏大学 Hyperspectral imaging light source system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6151112A (en) * 1997-11-17 2000-11-21 Innovative Lasers Corp. High-resolution, compact intracavity laser spectrometer
US20020031163A1 (en) * 2000-05-12 2002-03-14 Tedesco James M. Integrated external diode laser module particularly suited to raman spectroscopy
JP2006171024A (en) * 2004-12-10 2006-06-29 Olympus Corp Multi-point fluorescence spectrophotometry microscope and multi-point fluorescence spectrophotometry method
CN101241069A (en) * 2008-03-11 2008-08-13 武汉大学 Color dispersion -type multifunctional Hadamard transform microscopical imaging spectrometer
CN101782505A (en) * 2010-03-04 2010-07-21 江苏大学 Hyperspectral imaging light source system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110987382A (en) * 2019-12-28 2020-04-10 上海唯视锐光电技术有限公司 Measuring equipment and measuring method for laser display color speckles
CN110987382B (en) * 2019-12-28 2021-06-01 上海唯视锐光电技术有限公司 Measuring equipment and measuring method for laser display color speckles

Also Published As

Publication number Publication date
CN103411884B (en) 2016-05-11

Similar Documents

Publication Publication Date Title
CN104596990B (en) Double channel optical fiber turbidimetry method and sensor
CN101915832B (en) Colloidal gold and double-flow enzyme-linked immunosorbent rapid detection all-in-one machine
CN201732058U (en) Full-automatic liquid turbidity test instrument
CN203908936U (en) Back reflection measuring device
CN102494764B (en) Low-light detecting method for broad band covering visible light
CN104122231B (en) On-line self-calibration water quality turbidity detection system
CN101776571B (en) Liquid refractive index real-time measuring device and on-line measuring method
CN103868854A (en) Optical system of multi-wavelength abbe refractometer
CN210037588U (en) Absorption spectrum test system
CN103411884B (en) A kind of reference transmission dispersion sensitivity spectrum line detector
CN201788147U (en) Optical-fiber probe type soil nutrient tester
CN103398946B (en) A kind of color of liquid with reference transmission method pick-up unit
CN203745380U (en) Reflecting type photoelectric colorimetry detection device
CN103616377B (en) Reflection type photoelectricity colorimetric detection method and detection device thereof
CN203772739U (en) Optical system of high-precision digital V-prism refractometer
CN203732442U (en) Turbidity measuring instrument based on microprocessor STM32F103
CN111337126B (en) Light source mode measuring instrument
CN108007894A (en) A kind of portable straight chain farinograph
CN202133532U (en) Measure system of reflection characteristic of integrating sphere coating
CN104142306A (en) Pure digital photoelectric detection system and test method
CN202928951U (en) Water quality on-line monitoring instrument based on colorimetric method
CN102253011A (en) Method for calculating relative equivalent transmittance of integrating sphere and uses thereof
CN105301674B (en) Meteorological optical range detection means
CN214408685U (en) Food analyzer based on total reflection refraction method
RU2014103423A (en) METHOD FOR MEASURING REFRACTION INDICATOR AND DISPERSION AND DEVICE FOR ITS IMPLEMENTATION

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160511

Termination date: 20160703