CN102680106A - Photoelectric measurement method and device for utilizing thermocouple to monitor SSL (Secure Socket Layer) lighting products - Google Patents
Photoelectric measurement method and device for utilizing thermocouple to monitor SSL (Secure Socket Layer) lighting products Download PDFInfo
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- CN102680106A CN102680106A CN2012101561536A CN201210156153A CN102680106A CN 102680106 A CN102680106 A CN 102680106A CN 2012101561536 A CN2012101561536 A CN 2012101561536A CN 201210156153 A CN201210156153 A CN 201210156153A CN 102680106 A CN102680106 A CN 102680106A
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Abstract
The invention provides a photoelectric measurement method for utilizing a thermocouple to monitor SSL (Secure Socket Layer) lighting products. The method comprises the following steps: setting initial measurement conditions of an integrating sphere testing system and correcting the system; placing in the SSL lighting product, and testing according to the conventional steps of photoelectric testing, monitoring the temperature of the SSL lighting product by utilizing the thermocouple in the conventional photoelectric testing process of the SSL lighting product, and conducting photoelectric measurement after the thermocouple stably monitors the temperature of the system.. The invention further provides an integrating sphere measurement device for utilizing the thermocouple to monitor the temperature, which comprises an integrating sphere for measuring luminosity and chromaticity, and a thermocouple probe for measuring temperature at a preset position in the integrating sphere is arranged inside the integrating sphere. Temperature monitoring on the preset position in the integrating sphere to the SSL lighting products can be realized by arranging the temperature control system of the thermocouple, analysis on the structure and service life of the SSL lighting product can be effectively conducted by relationship between measurement results of luminosity, chromaticity and the like and the temperature.
Description
Technical field
The present invention relates to the method for testing with semiconductor lighting product (hereinafter to be referred as the SSL product), is carrier with 4 π or 2 π integrating sphere test macros, relates in particular to the photoelectric measurement that is fit to IES-LM-79, belongs to electric light source and illumination measurement technical field.
Background technology
The SSL product need reach steady state (SS) to sample when carrying out luminosity, colour measurement, definition and requirement according to IES LM-79 are generally 30min stabilization time, and (small-sized integrated LED lamp) is to 2h or longer (large-scale SSL light fixture).To reach thermal steady state; When 3 the light output of product in 30min and the reading of electric power (15min at interval) change when being no more than 0.5%; Show and reach steady state (SS); Experiment shows that the SSL product generally differs 5-15% (see table 1: measured data is explained) without stable initial value and stationary value when luminosity and colour measurement; Bring very big uncertainty of measurement to measurement like this, the integration sphere light source system of using in the optical measurement field of SSL illuminating product is not at present surveyed and is monitored the Temperature Distribution situation and the situation of change of integrating sphere inner space.So just can't learn when the SSL product reaches thermally-stabilised; In addition on the one hand; The distribution of the integrating sphere inner space distance in the time of also can't obtaining product from the initial testing state to steady state (SS) and the funtcional relationship the temperature stepped region, time change and the funtcional relationship of different acquisition point temperature variation, and these several funtcional relationships that obtain by temperature survey SSL is tested is very important and significant.
Table 1
Summary of the invention
Can't learn to above-mentioned prior art when the SSL product reaches heat-staple defective; The present invention carries out the method for the auxiliary monitoring of photoelectric measurement through utilizing thermopair to the SSL illuminating product; Can obtain the distribution of integrating sphere inner space distance and the funtcional relationship between the temperature stepped region; Can also obtain the funtcional relationship of time variation and different acquisition point temperature variation; Thereby can accurately monitor the thermal steady state of SSL product, measure the shading value and the chromatic value of SSL product, but and analytic statistics SSL product thermal behavior and the relation of actual life.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
A kind of method of utilizing thermopair monitoring SSL illuminating product photoelectric measurement: comprise the steps:
1. to the setting and the corrective system of integrating sphere test macro initial measurement condition;
2. put into the SSL illuminating product, test according to the conventional steps of photoelectricity test;
Wherein, said SSL illuminating product is being carried out in the process of described conventional photoelectricity test, utilizing said thermopair to monitor the temperature of said SSL illuminating product, after thermopair supervisory system monitoring temperature is stable, carrying out photoelectric measurement.
Further, said photoelectric measurement comprises the luminosity that said SSL illuminating product is carried out, the measurement of colourity.
The present invention also provides a kind of integral ball measuring device that utilizes the thermopair monitoring temperature, comprises the integrating sphere that is used for luminosity, colour measurement, is provided with the thermocouple probe that is used to measure the temperature of predetermined position in the integrating sphere in integrating sphere inside.
Further, the thermocouple probe in predetermined position comprises the probe that is used to measure said SSL illuminating product case temperature and SSL illuminating product peripheral space temperature.
Preferably, the thermocouple probe of measuring said SSL illuminating product case temperature is arranged on the integrating sphere central spot in fact, and its outlet leaves certain length surplus, is fitted in aluminium platinum paper on the case surface of SSL illuminating product.
Preferably, cross bar is set in integrating sphere, the thermocouple probe of said measurement SSL illuminating product peripheral space temperature prolongs central point to edge and evenly arranges on said cross bar.
Further; Said thermocouple probe all causes the signal input part of the outside TMP-2 multi-point temp logging of integrating sphere from the cable port of integrating sphere through thermocouple wire; 232 interfaces of TMP-2 multi-point temp logging link to each other with computing machine, monitor the change curve of temperature rise with the TMP-2 thermometric software of computing machine.
Through adopting above technical scheme, useful technique effect below the present invention can realize:
Through the thermopair temperature control system is set; Realization is carried out monitoring temperature to the photoelectricity test process of SSL illuminating product in integrating sphere; And measurement results such as luminosity that can be through setting up, colourity are carried out structure and durability analysis to the SSL illuminating product effectively with respect to functional relationship of temperature.
Description of drawings
Fig. 1 is the integrating sphere test macro synoptic diagram that the SSL product is carried out luminosity, colourity test;
Fig. 2 is the thermopair synoptic diagram that the integrating sphere test macro reload temperature among Fig. 1 is detected;
Fig. 3 is the curve map of the temperature stabilization of thermocouple probe;
Fig. 4 is a different monitoring point temperature graph of a relation over time;
Fig. 5 is the variation relation figure of different monitoring point temperature with range distribution;
Fig. 6 is a luminous flux attenuation change graph of a relation in time;
The variation relation of Fig. 7 temperature height that is attenuation rate when stablizing.
Among the figure: 1 integrating sphere, 2 SSL products, 3 standard lamps, 4 auxiliary lamps, 5 baffle plates, 6 survey mouth, 7 photometer test macros, 8 thermocouple probes, 9 cross bars
Embodiment
Do further detailed explanation below in conjunction with the accompanying drawing specific embodiments of the invention.
Like Fig. 1, shown in Figure 2, the present invention provides a kind of method of utilizing the auxiliary monitoring of thermopair that the SSL illuminating product is carried out the device of accurate photoelectric measurement, comprises the integrating sphere 1 of hollow; Standard lamp 3, auxiliary lamp 4, baffle plate 5, detection mouth 6, photometer test macro 7, wherein, the internal face of the housing of integrating sphere 1 scribbles the optionally pure barium sulphate of whitewash of (evenly) diffuse of no wavelength; In order to make temperature even, the housing of said integrating sphere 1 selects for use the higher metallic iron of coefficient of heat conductivity to process, and standard lamp 3 is used for before test, carrying out calibration test system; Auxiliary lamp 4 is opened when calibration; Correct the error of difformity sample light signal when calibration, plate washer 5 can be avoided a kind lamp direct irradiation luminosity probe, makes it fully diffuse reflection in integrating sphere; Survey mouthful device of 6 connection luminosity probes, the photometer test macro.
Simultaneously; In integrating sphere, prolong central point to edge on the cross bar 9 and evenly arrange a plurality of thermocouple probes 8, wherein, central spot is provided with 3 thermocouple probes 8; Be used to survey the temperature of the case surface of tested SSL product 2; The long 1m of radius cross bar, outwards every separated 10cm arranges a thermocouple probe 8 to the edge to prolong 4 cross bar 9 radiuses, amounts to 36 thermocouple probes like this; Be used to measure the temperature value that space up and down, integrating sphere 1 inside equidistantly distributes, so that set up SSL product 2 as the distribution of the space length of thermal source and the funtcional relationship between the temperature stepped region.
All thermocouple probes 8 all cause the signal input part (Signal Input) of the TMP-2 multi-point temp logging (not shown) of integrating sphere 1 outside from the cable port of integrating sphere 1 through thermocouple wire; Every TMP-2 multi-point temp logging is totally 16 signal input parts, needs 4 TMP-2 multi-point temp loggings to insert the thermocouple wires of drawing altogether.Many hoop thermocouple wires are fixing tight with the circle tape on the cross bar 9 of integrating sphere 1 inside, guarantee that spacing is fixing accurate.Thermocouple probe 8 outlets of central spot setting leave certain length surplus, are fitted in aluminium platinum paper on the case surface of SSL illuminating product 2 of different size shape.
232 interfaces of TMP-2 multi-point temp logging link to each other with computing machine, monitor the change curve of temperature rise with the TMP-2 thermometric software systems software of computing machine, can obtain following graph of a relation:
Different monitoring point temperature is graph of a relation (Fig. 4) over time; Can obtain the length of the SSL thermally equilibrated time that illuminating product reaches of different structure and scheme through this figure; And reach thermally equilibrated temperature value, thereby the accurate luminosity when product stablized, the measurement and the research in each item performance index and life-span of colourity;
Different monitoring point temperature is with the variation relation figure (Fig. 5) of range distribution, thereby obtains the space distribution situation of the thermal source of different product;
Luminous flux attenuation change graph of a relation (Fig. 6) in time, thus variation and the attenuation of SSL illuminating product obtained from the luminous flux of initial value when thermally-stabilised, and each item performance index and the research in life-span;
The variation relation (Fig. 7) of attenuation rate temperature height when stablizing, thus the different stable temperature of research are to product luminous flux attenuation rate.
Fig. 3 is the curve of the temperature stabilization of thermocouple probe, and its illustrative SSL product generally reaches thermally equilibrated process.
Bulb lamp (belonging to the SSL illuminating product) with a 6.8w is an example below, with the colourity test macro of significance explain that monitoring temperature is had in integrating sphere light, to(for) the SSL product.Initial and the stable luminous flux of the bulb lamp of this money 6.8w and the variation of aging luminous flux after 3000 hours are as follows.
The appearance lamp meets AC 220V/50Hz, uses power supply APS-9102, AC power meter GPM-8212, blue luxuriant and rich with fragrance optical integration ball CDS 2100, the luminous flux after testing original state respectively and stablizing; Its testing procedure is following: corrective system, put into the SSL illuminating product, and test according to the conventional steps of photoelectricity test; After thermopair supervisory system monitoring temperature is stable, carry out photoelectric measurement, wear out after testing; Test its lux maintenance and light decay rate, the stationary value of 2 appearance lamps differs more, and aging light decay after 3000 hours is also apparent in view; Cause its bimetry difference also apparent in view, referring to table 2 and table 3.
| Sample | Initial value | Stationary value | Aging 3000 hours | Attenuation rate (relatively stable) |
| 1# appearance light flux | 492.6 | 468.2 | 428.3 | 8.52% |
| 2# appearance light flux | 490.7 | 478.4 | 450.6 | 5.81% |
Table 2.
| ? | |
Appearance lamp 2 |
| The definition sustainment rate | 70% | 70% |
| Test duration | 3000H | 3000H |
| Light decay during this time | 8.521% | 5.810% |
| Bimetry (hour) | 12015 | 17876 |
Table 3.
The monitoring temperature of these two appearance lamps is found that its skin temperature differs big (like table 4) through thermocouple probe, that is to say that the height of temperature has influenced the light decay and the life-span of product.
| Sample | Environment | Shell test point A | Shell |
| 1# appearance light temperature (℃) | 27.6 | 73.3 | 75.0 |
| 2# appearance light temperature (℃) | 28.1 | 55.3 | 57.4 |
Table 4.
Shell test point A, the sampling point of shell test point B in this table 4 on the appearance lamp housing, randomly drawing.
Above-mentioned table 2 to table 4 shows the parameter situation of luminosity aspects such as luminous flux, light decay, and is as for the parameter of colourity aspect, unlisted with the variation of temperature situation such as parameters such as colour temperature, colour temperature drift rates; Through the test experiments data; Can know that equally in the test process that carries out colourity, the adding monitoring temperature has important directive significance to the colourity test of SSL product; Can be good at look drift of studying product etc.; With the colour temperature, colour rendering index etc. of control product, those skilled in the art according to the present invention in the rule shown in Fig. 4 to Fig. 7 and combine test experiments to understand easily, do not detail.
The foregoing description is merely preferred implementation of the present invention; In addition; The present invention can also have other embodiments, under the prerequisite that does not break away from the present invention's design, and any conspicuous replacement; Such as: the position setting of thermocouple probe among the present invention, distributed number etc. are made simple alternative transforms, all fall within protection scope of the present invention.
Claims (7)
1. method of utilizing thermopair monitoring SSL illuminating product photoelectric measurement: comprise the steps:
1. to the setting and the corrective system of integrating sphere test macro initial measurement condition;
2. put into the SSL illuminating product, test according to the conventional steps of photoelectricity test;
It is characterized in that: said SSL illuminating product is being carried out in the process of photoelectricity test, utilizing said thermopair to monitor the temperature of said SSL illuminating product, after thermopair supervisory system monitoring temperature is stable, carrying out photoelectric measurement.
2. the method for utilizing thermopair monitoring SSL illuminating product photoelectric measurement according to claim 1, it is characterized in that: said photoelectric measurement comprises the luminosity that said SSL illuminating product is carried out, the measurement of colourity.
3. an integral ball measuring device that utilizes the thermopair monitoring temperature comprises the integrating sphere (1) that is used for luminosity, colour measurement, it is characterized in that: be provided with the thermocouple probe (8) that is used to measure the temperature of predetermined position in the integrating sphere in integrating sphere inside.
4. the integral ball measuring device that utilizes the thermopair monitoring temperature according to claim 3 is characterized in that: the thermocouple probe of said predetermined position comprises the probe that is used to measure said SSL illuminating product case temperature and SSL illuminating product peripheral space temperature.
5. the integral ball measuring device that utilizes the thermopair monitoring temperature according to claim 4; It is characterized in that: the thermocouple probe of measuring said SSL illuminating product case temperature is arranged on the integrating sphere central spot in fact; Its outlet leaves certain length surplus, is fitted in aluminium platinum paper on the case surface of SSL illuminating product.
6. the integral ball measuring device that utilizes the thermopair monitoring temperature according to claim 4; It is characterized in that: cross bar (9) is set in integrating sphere (1), and the thermocouple probe (8) of said measurement SSL illuminating product peripheral space temperature prolongs central point to edge and evenly arranges on said cross bar (9).
7. according to claim 5 or the 6 described integral ball measuring devices that utilize the thermopair monitoring temperature; It is characterized in that: said thermocouple probe (8) all causes the signal input part of the outside TMP-2 multi-point temp logging of integrating sphere (1) from the cable port of integrating sphere (1) through thermocouple wire; 232 interfaces of TMP-2 multi-point temp logging link to each other with computing machine, monitor the change curve of temperature rise with the TMP-2 thermometric software of computing machine.
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| CN104931231A (en) * | 2015-05-15 | 2015-09-23 | 广东省标准化研究院 | Light engine heat radiation parameter test device and test method |
| CN106595906A (en) * | 2016-12-19 | 2017-04-26 | 广电计量检测（成都）有限公司 | Lamp detection equipment calibration device and method |
| CN107328471A (en) * | 2017-08-09 | 2017-11-07 | 濮阳市质量技术监督检验测试中心 | A kind of wireless optical detection system based on Arduino |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106595906A (en) * | 2016-12-19 | 2017-04-26 | 广电计量检测（成都）有限公司 | Lamp detection equipment calibration device and method |
| CN106595906B (en) * | 2016-12-19 | 2023-07-21 | 广电计量检测（成都）有限公司 | Lamp detection equipment calibrating device and method |
| CN107328471A (en) * | 2017-08-09 | 2017-11-07 | 濮阳市质量技术监督检验测试中心 | A kind of wireless optical detection system based on Arduino |
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Application publication date: 20120919 |