CN103090975B - Method and device for fluorescent powder slurry colorimetric parameter real-time measuring in fluorescent lamp production - Google Patents
Method and device for fluorescent powder slurry colorimetric parameter real-time measuring in fluorescent lamp production Download PDFInfo
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- CN103090975B CN103090975B CN201310041640.2A CN201310041640A CN103090975B CN 103090975 B CN103090975 B CN 103090975B CN 201310041640 A CN201310041640 A CN 201310041640A CN 103090975 B CN103090975 B CN 103090975B
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Abstract
The invention relates to the technical field of fluorescent lamp chromaticity measuring methods in a production line. The method for fluorescent powder slurry colorimetric parameter real-time measuring in fluorescent lamp production comprises draining a part of fluorescent powder slurry in the production line into a measuring container, exciting the powder slurry in the measuring container through selected exciting light, collecting a excitation spectrum through a excitation spectra collector, and then sending the excitation spectrum to a spectrograph, and analyzing the colorimetric parameter of the fluorescent powder slurry in the production line through the spectrograph in a real-time mode. The method and a device for fluorescent powder slurry colorimetric parameter real-time measuring in the fluorescent lamp production can measure the colorimetric parameter of the fluorescent powder slurry directly in the production line, and compared with the prior art, the method and the device of fluorescent powder slurry colorimetric parameter real-time measuring in the fluorescent lamp production can feed back data online and eliminate the deviation of lamp color due to the deviation of a manufacturing technique. The method for fluorescent powder slurry colorimetric parameter real-time measuring in the fluorescent lamp production can complete a test within 3 minutes, not only guarantees control accuracy, but also accelerates speed and reduces the difficulty of a control technique, and can meet the lamp color online real-time control requirement of fluorescent lamp factories.
Description
Technical field
The present invention relates to a kind of in Fluorescent lamp production process, the measuring method of the phosphor slurry colorimetric parameter used and device technique field.In the present invention, the colorimetric parameter of phosphor slurry refers to the chromaticity coordinates value of phosphor slurry emission spectrum: x and y, correlated colour temperature and colour rendering index.
Background technology
Fluorescent light (mainly referring to three primary colors fluorescent powder electricity-saving lamp, electrodeless florescent lamp) uses three primary colors fluorescent powder to be luminescent material substantially, ultraviolet light 254nm, 185nm, 365nm in lamp is utilized to excite the fluorescent powder be coated on tube inner wall, in the photochromic fluorescent powder primarily of being coated in tube inner wall sent, the ratio of red, green, blue determines, the color controlling lamp is that the ratio by controlling the RGB three kinds of fluorescent powder be coated on glass inner wall realizes.The color of the finished product of fluorescent light must meet international standard (some country have oneself national standard), main finger chromaticity coordinates, colour rendering index, correlated colour temperature and color tolerance, due to phosphor slurry in process of production, RGB self proportion, granularity, crystal morphology, the difference of character of surface difference and the configuration of powder slurry, make fluorescent powder slurries and easily occur colo(u)r breakup in process of production, in coating procedure, the fluorescent powder not hanging up glass tube will be back to the bucket of powder slurry, the ratio of RGB backflow is also different, many factors causes in fluorescent tube production run, the colorimetric parameter of fluorescent tube constantly drifts about, depart from standard value, must to powder slurry color immediately monitoring and constantly adjust, could meet fluorescent tube colorimetric parameter drops in critical field, only different size, distinct device, under different technology conditions, the frequency of adjustment is different.In the factory of existing more than 1000 of China, annual production more than 4,000,000,000, the annual consumption of three primary colors fluorescent powder is also at about 6000 tons, and huge turnout needs effective ground colour degree control method, cuts the waste, and improves qualification rate, saves valuable rare earth resources.
In order to address this problem, control color well, current manufacturer adopts the color of timing sampling test product fluorescent tube, again color adjustment (adding suitable RGB fluorescent powder) is carried out to the powder slurry on line if variant, owing to starching fluorescent tube finished product out from powder, need a period of time, cause the delayed of adjustment, when pinpointing the problems, the problem glass tube much having applied fluorescent powder has been had to occur on a production line, the limited efficiency of control.Such as, the speed of production line be one hour 1000, adjustment in 2 hours once just have 2000 may underproof product riskses.The production procedure of fluorescent tube out, through tens procedures, lasts and wants 30 minutes at the soonest from fluorescent powder to fluorescent tube, measures 30 minutes, that is in very smooth situation, realize adjustment in a hour once, moreover once not necessarily directly tune is right.Therefore, in the urgent need to a kind of measuring method or device, the change of energy Timeliness coverage fluorescent powder color, provides alert rapidly when exceeding controlling value, and automatically adjusts.
Summary of the invention
Object of the present invention is exactly the defect in order to overcome Traditional control color means in Fluorescent lamp production process, provides a kind of simple, quick, immediately can adjust the method for phosphor slurries colorimetric parameter on production line.
Another object of the present invention is to provide a kind of device measuring phosphor slurry colorimetric parameter, the colorimetric parameter of phosphor slurry on production line can be obtained quickly and easily.
For reaching above-mentioned purpose, the technical scheme that the present invention takes is as follows:
The instant measuring method of the colorimetric parameter of phosphor slurry in a kind of Fluorescent lamp production, the method is, from the phosphor slurry drainage portion phosphor slurry production line in measuring vessel, by the powder slurry slurries in selected excitation measuring vessel, excitation spectrum delivers to spectrometer after being gathered by spectral collector, and spectrometer real-time analysis goes out the phosphor slurry colorimetric parameter on production line.
The method of the colorimetric parameter of above-mentioned direct measurement Fluorescent lamp production line front end provided by the invention phosphor slurry, can at the top of production line flow process, namely be coated with in the process of whiting slurry, find the change of fluorescent powder color, provide alert when exceeding controlling value, can ensure that the colorimetric parameter of finished product drops in the scope of requirement, improve the qualification rate of product, reduce cost and enhance productivity.
The instant measuring method of the colorimetric parameter of phosphor slurry in above-mentioned Fluorescent lamp production, the mode that phosphor slurry on drainage production line preferably refluxes, namely the import of measuring vessel is all communicated with the phosphor slurry storage container on production line with outlet, and the phosphor slurry be excited in container is the phosphor slurry of flowing in real time on production line.
Further, the instant measuring method of the colorimetric parameter of phosphor slurry in above-mentioned Fluorescent lamp production, exciting light adopts the ultraviolet light of 254nm, uviol lamp that low-pressure mercury discharges can be used as excitation source, then use the optical filter of 254nm.
Further, the instant measuring method of the colorimetric parameter of phosphor slurry in above-mentioned Fluorescent lamp production, measuring vessel requires can through the emission spectrum of exciting light and phosphor slurry, container prepared by preferred quartzy material.
Further, the instant measuring method of the colorimetric parameter of phosphor slurry in above-mentioned Fluorescent lamp production, the spectral collector used can be one or more, can be 1) silicon photocell or selenium cell, by being electrically connected to spectroanalysis instrument; Also can be 2) light transmitting fiber, be connected to spectroanalysis instrument by optical cable or directly by light slit, spectroanalysis instrument collected.If do not need sampling utilizing emitted light integrated intensity, spectral collector 1) can save.
The colorimetric parameter measurement mechanism of phosphor slurry, it comprises excitation source, light barrier, optical filter, measuring vessel, spectral collector and spectroanalysis instrument, and wherein light barrier and optical filter are arranged on same plane, filters the exciting light that excitation source obtains needing; Measuring vessel is located in the range of exposures of exciting light; Collector is located in the radiation scope of excitation spectrum, and collector is connected with spectroanalysis instrument; Measuring vessel holds phosphor slurry to be measured.
Preferably, the colorimetric parameter measurement mechanism of above-mentioned phosphor slurry, import and/or the outlet of its measuring vessel are communicated with the phosphor slurry on production line, and the phosphor slurry in measuring vessel at the uniform velocity flows immediately.
Preferably, the colorimetric parameter measurement mechanism of above-mentioned phosphor slurry, its exciting light adopts the ultraviolet light of 254nm, uviol lamp that low-pressure mercury discharges can be used as excitation source, then use the optical filter of 254mm.
The colorimetric parameter measurement mechanism of above-mentioned phosphor slurry, its measuring vessel can through the exciting light of exciting light and phosphor slurry, container prepared by preferred quartzy material.
The colorimetric parameter measurement mechanism of above-mentioned phosphor slurry, its spectral collector used can be one or more, can be 1) silicon photocell or selenium cell, by being electrically connected to spectroanalysis instrument; Also can be 2) light transmitting fiber, be connected to spectroanalysis instrument by optical cable or directly by light slit, spectroanalysis instrument collected.If do not need sampling utilizing emitted light integrated intensity, spectral collector 1) can save.
The colorimetric parameter measuring method of phosphor slurry of the present invention, exciting light, only for being excited by the phosphor slurry in measuring vessel, produces the emission spectrum of fluorescent powder; Collector is only passed to spectroanalysis instrument for the emission spectrum phosphor slurry; Phosphor slurry is placed in measuring vessel, exciting light excites the phosphor slurry in container through this measuring vessel wall, the emission spectrum of phosphor slurry transmits in measuring vessel, collected device collection, and be sent to spectroanalysis instrument, finally obtain the colorimetric parameter collecting phosphor slurry, for the technician's real-time reference on production line.
The available silicon photocell of collector (1) or selenium cell, measure phosphor slurry emission spectrum integrated intensity, by being electrically connected to measurement and control center, collector (2) light transmitting fiber daylighting, be connected to measurement and control center by optical cable, measurement and control center at least possesses spectral measurement and analytic function.Collector (2) also can without light transmitting fiber, but a light slit is connected with measurement and control center mechanically.Measurement and control center mainly adopts a computing machine and a spectrometer formation or an independent band to analyze the spectrometer of spectrum computing and controlling functions.Like this, control center can by the colorimetric parameter of the phosphor slurry required for intrasystem spectrometer acquisition.Here collector (1) can save when not sampling utilizing emitted light integrated intensity.
As preferably, the uviol lamp discharged with low-pressure mercury is as excitation source, combine with the optical filter of baffle plate and 254nm, produce the exciting light of wavelength 254nm as phosphor slurry, with the quartz ampoule of the two ends all-pass measuring vessel as phosphor slurry, the phosphor slurry of flowing is allowed to flow uniformly through measuring vessel quartz ampoule with certain speed, a phosphor slurry ebullator is carried, allow the bucket that phosphor slurry is housed be connected with the two ends of quartz ampoule respectively by two pipelines and carry out self-loopa, phosphor slurry constantly enters one end of quartz ampoule from bucket through wherein pipeline, constantly again be back in bucket from the other end, by such iterative cycles, the emission spectrum of such phosphor slurry gather by continuous collected device.The available silicon photocell of collector (1) or selenium cell, measure phosphor slurry emission spectrum integrated intensity, by being electrically connected to measurement and control center, collector (2) light transmitting fiber daylighting, be connected to measurement and control center by optical cable, measurement and control center at least possesses spectral measurement and analytic function.Collector (2) also can without light transmitting fiber, but a light slit is connected with measurement and control center mechanically.Measurement and control center mainly adopts a computing machine and a spectrometer formation or an independent band to analyze the spectrometer of spectrum computing and controlling functions.Like this, control center can by the colorimetric parameter of the phosphor slurry required for intrasystem spectrometer acquisition.Here collector (1) can save when not sampling utilizing emitted light integrated intensity.
As preferably, during measurement, under the drive of ebullator, phosphor slurry enters quartz ampoule from bucket by pipeline, then flows to bucket by the back of pipeline of the other end; Powder slurry is excited when flowing through quartz ampoule and produces the emission spectrum of phosphor slurry, and the spectrometer of measurement and control center, by the Information Monitoring analyzing and processing of collector, obtains the colorimetric parameter of Flow Fluorescent Detector powder.The mode measured can be divided into: single measurement and continuous coverage; Single measurement is for obtaining current colorimetric parameter, and continuous coverage can analyze colorimetric parameter and variation tendency thereof in a period of time.The phosphor slurry of flowing solves phosphor slurry very well and solves the difficult problem obtaining homogeneous powder slurry, and the uncertainty effectively preventing the difference due to powder pulp material precipitation from bringing test result, substantially increases reliability and precision.
As the second optimal technical scheme, difference is that the phosphor slurry type of flow of measuring vessel is different, it is characterized in that, the quartz ampoule sealed with one end is as measuring vessel, under the conveying of ebullator, the type of flow of phosphor slurry is realized by other packing less one end turnover of measuring vessel quartz ampoule, and the quartz ampoule entering test container and two pipelines being back to powder slurry bucket of conveying phosphor slurry, be all positioned at same one end of quartz ampoule.Above-mentioned mode equally can to the measure of the change of the colorimetric parameter of phosphor slurry in production and application process and analysis thereof.Its working method with above two kinds consistent, effect is also consistent.
As the third optimal technical scheme, difference is that the phosphor slurry type of flow of measuring vessel is different, and it is characterized in that, the quartz ampoule sealed with one end, as measuring vessel, completes the conveying of phosphor slurry with a pipeline.In measuring process, under the conveying of ebullator, the type of flow of phosphor slurry first injects phosphor slurry to measuring vessel quartz ampoule by pipeline, this is that measurement and control center carries out Measurement and analysis to the optical information that collector collects, and obtains the colorimetric parameter of the phosphor slurry be injected in quartz ampoule; Then, ebullator sucks back the phosphor slurry in quartz ampoule; Then inject measurement more next time, repeatedly so work.This is a kind of semifluid working method.
As the 4th kind of optimal technical scheme, difference is that phosphor slurry does not flow; It is characterized in that, with the quartz ampoule of one end sealing as measuring vessel, tested phosphor slurry loaded wherein, the phosphor slurry in this measuring vessel is excited and luminous, collected device collection.The shortcoming of above-mentioned mode is that solution is that measurement and control center adopts the spectrometer possessing rapid spectrum scanning function because the phosphor slurry precipitation in measuring vessel is unreliable to the test result of colorimetric parameter.Its working method no longer with ebullator conveying powder slurry, can only single to measuring in quartz ampoule the phosphor slurry added, measure and completely again powder slurry to be taken out.This mode, shortcoming is the reliability decrease that the difference that possible sample because of powder slurry brings test result in addition.
Under being 254nm condition for exciting light, adopt quartzy material as the measuring vessel of tested phosphor slurry, because common quartzy material through the spectrum of 200nm ~ 1200nm, can have very high permeability (>80%) to the emission spectrum of exciting light and phosphor slurry.When excitation wavelength or emission spectrum change, should select simultaneously can through the measuring vessel material of exciting light and phosphor slurry emission spectrum, just can excite through the phosphor slurry in excitation spectrum container, the emission spectrum through phosphor slurry just can collect by collected device.
As another kind of optimal technical scheme, make phosphor slurry measured under the state of flowing, the phosphor slurry in measuring vessel can not sedimentation, effectively eliminates the measuring error that the sedimentation of powder slurry brings; Phosphor slurry flows out from bucket, flow through measuring vessel and be back to bucket again, changed by the position of inflow and outflow pipeline opening in bucket, powder slurry in bucket is played a part carrying and stirred, improve powder slurry bucket in colo(u)r breakup state, make color in bucket evenly.
Collector is just responsible for the emission spectrum of phosphor slurry and strength transfer to measurement and control center.
Comprehensive the above, the present invention adopts the method for the colorimetric parameter directly measuring phosphor slurry, is typically applied on Fluorescent lamp production line, directly the instant colorimetric parameter measuring the phosphor slurry that production line is applying.The color comparing the existing fluorescent tube by measuring production line end judges the management and control mode that powder pulp color changes, and the present invention will advance to the front end of production line to the management and control of fluorescent tube colorimetric parameter, namely controls to have moved forward, so feedback in time; The error simultaneously got rid of due to production technology causes the deviation of fluorescent tube color, and cause erroneous judgement powder pulp color being departed to standard degree, the sampling of phosphor slurry is evenly reliable, stability is high, ensure that the accurate of test result, repeatability and consistance high, good reliability.Look back Traditional control means, first fluorescent tube output is starched from powder, 30 minutes the soonest, and complete more than 30 minutes are needed to the measurement of fluorescent tube colorimetric parameter, the speed of production line is about 1000 lamps per hour, and most of producer to starch the time of measuring fluorescent tube complete needs from powder be 2 littlely (starched fluorescent tube output from powder, generally through tens procedure flow processs up to 24 hours.), add the colorimetric parameter error that lighting tube production technology brings, sometimes color adjustment can not within 3 days, all be completed, both not in time, out of true again, phosphor pulp color does not become sometimes, because of the change that technological process brings, rashly change the color of phosphor slurry, can cause like this adjusting worse and worse, have a strong impact on manufacturing schedule.The method that the present invention measures the speed parameter of powder slurry can complete test within 3 minutes, even if adjustment powder pulp color, also can adjust at about 20 minutes, substantially increase powder pulp color control efficiency on Fluorescent lamp production line, the measuring accuracy of spectrometer can reach 0.5%, reach the target of accurately monitoring completely, allow the On-line Control of the colorimetric parameter of fluorescent tube be able to effectively reliable enforcement.In addition, the present invention by placing the position extracting powder slurry pipeline, can measure the powder pulp color of optional position, and indication stores the variation tendency of color in powder slurry bucket; By the position of backflow powder slurry pipeline, the powder slurry extracting powder slurry position is transported to backwash deployment, greatly improves the homogeneity of powder pulp color in bucket, avoid layering.The present invention adopts the control mode directly measuring phosphor slurry colorimetric parameter, replace tradition by measuring the rear end control mode of the colorimetric parameter of output fluorescent tube, both control accuracy was ensured, greatly accelerate speed again, have measure consistance good, reliability is high, speed is fast and feed back the features such as timely, save manpower and time, reduce control technology difficulty, the requirement of the fluorescent tube color on line real time control of Fluorescent lamp production factory can be met.Concerning the production of trichromatic energy saving lamp, the return of goods sold or the product in overstocked warehouse, almost half is above is that color problem causes, be again fundamentally color out of control caused by, this ratio is about about 3% of the output value, this is a very large number, and the fluorescent tube of domestic annual valuable 3-4 hundred million Renminbi becomes waste product like this.The present invention efficiently solves the problem of Fluorescent lamp production process on-line monitoring color, reduces the waste of manpower, material resources and financial resources, like this to manufacturer, also like this to society.
Below in conjunction with drawings and Examples, clearly explanation is done to technical scheme of the present invention:
Accompanying drawing explanation
Fig. 1 is the phosphor slurry excitation apparatus structural representation that the inventive method adopts
Fig. 2 is the measurement mechanism structural representation of example 1 of the present invention
Fig. 3 is the measurement mechanism structural representation of example 2 of the present invention
Fig. 4 is the measurement mechanism structural representation of example 3 of the present invention
Fig. 5 is the measurement mechanism structural representation of example 4 of the present invention
Fig. 6 is the structural representation that measuring method of the present invention and device collector adopt mechanical connection manner
Embodiment
Embodiment 1
As shown in Figure 2, in the measuring method of phosphor slurry colorimetric parameter disclosed in the present embodiment, comprise tested phosphor slurry 5, measurement heat container (quartz ampoule) 3, uviol lamp 4, optical filter 6, baffle plate 16, exciting light (254nm) 7, collector (silicon photocell) 1, collector (light transmitting fiber) 2, extract powder slurry silicone tube 9, ebullator 10, enter the measurement and control center 14 that powder starches silicone tube 11, powder starches recirculatory pipe 15, powder starches bucket 8 and band spectrum instrument.Uviol lamp 4 after filtration mating plate 6 forms monochromatic exciting light 7, the phosphor slurry 5 of the inside is excited through quartz ampoule 3, collector 1 gather phosphor slurry 5 be excited after utilizing emitted light integrated intensity and with measurement and control center 14 to be electrically connected, the emission spectrum of phosphor slurry is directly delivered to measurement and control center 14 with light transmitting fiber form by collector 2.
The present embodiment in the course of the work, in order to test the spectrum of the phosphor slurry in powder slurry bucket 8, utilizes ebullator 9, extracts the powder slurry in powder slurry bucket 8, enter quartz ampoule test container 3 through piping 11 by pipeline 9, then is back in powder slurry bucket 8 through piping 15.When powder slurry is through measuring vessel, the light 7 that is excited excites, and the emission spectrum of phosphor slurry appears from measuring vessel 3, and collected device 1 and 2 gathers, and is sent to measurement and control center 14, and measurement and control center often gathers the colorimetric parameter once just obtaining phosphor slurry 5.Iterative cycles, completes one-shot measurement in 2 ~ 5 minutes.In process of production, owing to constantly applying fluorescent tube, the powder slurry in powder slurry bucket 8 is just constantly consumed, and powder slurry self also has certain precipitation; Drop down unnecessary powder pulp color from tube glass also can change; Be back in powder slurry bucket 8, because backflow has certain distance, different cultivars return velocity is different, and color also can change again.Phosphor slurry in such powder slurry bucket 8 is the process of a change, thus the fluorescent tube color of production line end also can change.Because measurement and control center constantly tests, when color deviation critical field large to a certain extent time, measurement and control center sends cue, requires the color of phosphor slurry in adjustment powder slurry bucket 8.Due in continuous flow process, constantly gather, can the color of phosphor slurry in highly stable acquisition powder slurry bucket 8, thus the color of production line end fluorescent tube can be predicted, really achieve the object of effective monitoring production line Fluorescent lamp production colorimetric parameter.Further, by changing pipeline 9 and pipeline 15 position in powder slurry bucket 8, due to ebullator continuous circulation, can move up and down by powder slurry in powder slurry bucket 8, playing suitable beating action, avoid layering, improve the homogeneity of powder slurry.
Embodiment 2
As shown in Figure 3, in measuring vessel, the structure of 3 is different as different from Example 1, and one end is closed, and phosphor slurry, from the turnover of open one end, to starch with powder by ebullator 10 and inlet and outlet piping that bucket 8 is interior to be realized circulating, and function and precision are the same.
Embodiment 3
As shown in Figure 4, with embodiment 1, embodiment 2 unlike in measuring vessel 3 structure different, one end is closed, and phosphor slurry is from the turnover of open one end, turnover test container 3 is all same pipeline, starches in bucket 8 to realize powder and starch and circulate by having the ebullator of both forward and reverse directions conveying function and powder.Test process is such, ebullator first fills up the phosphor slurry in measuring vessel 3, is gathered the phosphor slurry 5 in measuring vessel 3 by measurement and control center, gathers after terminating, ebullator reverse operation sucks back the powder slurry in measuring vessel 3, delivers in powder slurry bucket 8.This is a kind of working method of half flowing powder slurry, and because powder slurry is not continuous circulation, scan than time very fast at the spectrometer of measurement and control center, the colorimetric parameter measured is only reliably.
Embodiment 4
As shown in Figure 5, to embodiment 1,2,3 unlike not having ebullator and corresponding pipeline, in measuring vessel 3, one end is closed, and phosphor slurry is loaded into from open one end, measures complete refunding again in powder slurry bucket 8.Powder slurry easily precipitation in test process, this is static noncurrent mode, and scan (as CCD) than time very fast at the spectrometer of measurement and control center, the colorimetric parameter measured is only reliably.
Claims (13)
1. the instant measuring method of colorimetric parameter of phosphor slurry in producing, the method is, from the phosphor slurry drainage portion phosphor slurry Fluorescent lamp production line in measuring vessel, by the powder slurry slurries in selected excitation measuring vessel, excitation spectrum delivers to spectrometer after being gathered by spectral collector, and spectrometer real-time analysis goes out the phosphor slurry colorimetric parameter on production line; Phosphor slurry on drainage production line adopts the mode of backflow, and namely the import of measuring vessel is all communicated with the phosphor slurry storage container on production line by ebullator with outlet; Measuring vessel is can through the emission spectrum of exciting light and phosphor slurry.
2. the instant measuring method of colorimetric parameter of phosphor slurry in producing as claimed in claim 1, is characterized in that: exciting light adopts the ultraviolet light of 254nm.
3. in producing as claimed in claim 1, the instant measuring method of colorimetric parameter of phosphor slurry, is characterized in that: measuring vessel adopts quartzy material to prepare.
4. in producing as claimed in claim 1, the instant measuring method of colorimetric parameter of phosphor slurry, is characterized in that: the spectral collector used is one.
5. in producing as claimed in claim 1, the instant measuring method of colorimetric parameter of phosphor slurry, is characterized in that: the spectral collector used has more than 2 or 2.
6. the instant measuring method of colorimetric parameter of phosphor slurry in producing as claimed in claim 1, is characterized in that: described spectral collector refers to the device being connected to spectroanalysis instrument by light transmitting fiber or directly by light slit, spectroanalysis instrument being gathered.
7. the instant measuring method of colorimetric parameter of phosphor slurry in producing as claimed in claim 5, it is characterized in that: spectral collector is 2, one of them is silicon photocell or selenium cell, by being electrically connected to spectroanalysis instrument; One is light transmitting fiber, is connected to spectroanalysis instrument or directly makes spectroanalysis instrument by light slit by optical cable.
8. the colorimetric parameter measurement mechanism of phosphor slurry, it comprises excitation source, light barrier, optical filter, measuring vessel, spectral collector and spectroanalysis instrument, wherein light barrier and optical filter are arranged on same plane, filter the exciting light that excitation source obtains needing; Measuring vessel is located in the range of exposures of exciting light; Collector is located in the radiation scope of excitation spectrum, and collector is connected with spectroanalysis instrument; Measuring vessel holds phosphor slurry to be measured.
9. the colorimetric parameter measurement mechanism of phosphor slurry as claimed in claim 8, is characterized in that: import and/or the outlet of measuring vessel are communicated with the phosphor slurry on production line, and the phosphor slurry in measuring vessel at the uniform velocity flows immediately.
10. the colorimetric parameter measurement mechanism of phosphor slurry as claimed in claim 8, is characterized in that: exciting light adopts the ultraviolet light of 254nm.
The colorimetric parameter measurement mechanism of 11. phosphor slurries as claimed in claim 8, is characterized in that: measuring vessel is quartzy material.
The colorimetric parameter measurement mechanism of 12. phosphor slurries as claimed in claim 8, is characterized in that: described spectral collector refers to the device being connected to spectroanalysis instrument by light transmitting fiber or directly by light slit, spectroanalysis instrument being gathered.
The colorimetric parameter measurement mechanism of 13. phosphor slurries as claimed in claim 8, it is characterized in that: spectral collector is 2, one of them is silicon photocell or selenium cell, by being electrically connected to spectroanalysis instrument; One is light transmitting fiber, is connected to spectroanalysis instrument or directly makes spectroanalysis instrument by light slit by optical cable.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2034686U (en) * | 1988-04-19 | 1989-03-22 | 中国科学院声学研究所 | Photo-electricity liquid state colourity detecting installation |
| CN1284164A (en) * | 1998-02-06 | 2001-02-14 | 德斯夸瑞德发展有限公司 | Grain quality monitor |
| CN201034939Y (en) * | 2007-04-13 | 2008-03-12 | 杭州远方光电信息有限公司 | Fluorescent powder excited measurement mechanism |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034686U (en) * | 1988-04-19 | 1989-03-22 | 中国科学院声学研究所 | Photo-electricity liquid state colourity detecting installation |
| CN1284164A (en) * | 1998-02-06 | 2001-02-14 | 德斯夸瑞德发展有限公司 | Grain quality monitor |
| CN201034939Y (en) * | 2007-04-13 | 2008-03-12 | 杭州远方光电信息有限公司 | Fluorescent powder excited measurement mechanism |
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| Title |
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| 荧光粉色度测量新方法的研究;朴大植;《现代计量测试》;20001231;全文 * |
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