WO2015139657A1 - 照度测试装置 - Google Patents

照度测试装置 Download PDF

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Publication number
WO2015139657A1
WO2015139657A1 PCT/CN2015/074699 CN2015074699W WO2015139657A1 WO 2015139657 A1 WO2015139657 A1 WO 2015139657A1 CN 2015074699 W CN2015074699 W CN 2015074699W WO 2015139657 A1 WO2015139657 A1 WO 2015139657A1
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WO
WIPO (PCT)
Prior art keywords
tested
casing
partition
testing device
illuminance
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PCT/CN2015/074699
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English (en)
French (fr)
Inventor
韩帅
丁屹峰
周松霖
李伟
周小丽
刘木清
Original Assignee
国家电网公司
国网北京市电力公司
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Application filed by 国家电网公司, 国网北京市电力公司 filed Critical 国家电网公司
Publication of WO2015139657A1 publication Critical patent/WO2015139657A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/0271—Housings; Attachments or accessories for photometers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J2001/4247—Photometry, e.g. photographic exposure meter using electric radiation detectors for testing lamps or other light sources

Definitions

  • the present invention relates to the field of optical testing equipment, and in particular to an illuminance testing apparatus.
  • the present invention is directed to providing an illuminance testing device to solve the problem in the prior art that the illuminance of a lighting device in a haze environment cannot be tested.
  • an illuminance testing device comprising: a box body having a mounting frame on which a luminaire to be tested is mounted; a smog simulation portion, a smog simulation portion It communicates with the box body and conveys mist and smoke to the box body; the detecting unit, the detecting unit is disposed in the box body, and detects the light intensity of the lamp to be tested.
  • the mounting bracket is disposed at the first end of the longitudinal direction of the box, and the fixture to be tested is fixedly disposed on the mounting bracket.
  • the box further includes a partition, the distance of the partition relative to the lamp to be tested is adjustably disposed in the box body and divides the box into two spaces, and the detecting unit is disposed on the partition.
  • the box further comprises a mounting groove for positioning the partition plate, the mounting groove is plural, and is arranged at intervals along the length direction of the box body, and the partition plate cooperates with any mounting groove to divide the box into two spaces. .
  • the mounting groove is located at the top of the case and penetrates the top wall of the case.
  • the case further includes a sealing plate inserted into the mounting groove between the partition and the lamp to be tested.
  • the detecting unit is an illuminometer
  • the partition plate is provided with a placing hole, and the illuminometer is disposed in the placing hole.
  • a first opening is disposed on the sidewall of the box, the first opening is located between the luminaire to be tested and the partition, and the smog simulation portion communicates with the box through the first opening.
  • the smog simulation part includes an atomization unit and a smelting unit, and the atomization unit communicates with the box through the first opening, and sends mist to the box body to simulate a fog environment, and the smelting unit passes through the first opening and the box body Connect and transport ⁇ to the box to simulate the ⁇ environment.
  • the atomization unit includes an ultrasonic humidifier having an outflow tube, and the second end of the mist outlet tube is connected to the first opening, and the water droplet atomized by the ultrasonic humidifier is delivered to the tank.
  • the deuteration unit comprises: a soot generator, a combustible substance is placed in the soot generator, and the combustible substance is burned to generate soot; the first blower, the first blower is connected with the soot generator, and the air outlet of the first blower and the first opening Connect and blow the smoke from the soot generator into the box.
  • the illuminance testing device comprises a box body, a smog simulation part and a detecting unit, and a mounting frame for installing the luminaire to be tested is arranged in the box body, and the smog simulation part communicates with the box body, and the mist is transmitted to the box body and The dust; the detecting unit is disposed in the box and detects the light intensity of the lamp to be tested.
  • the illuminance test device can test the illumination intensity of the luminaire to be tested in a haze environment, and then test the ability of different types of luminaires to be tested to penetrate the smog to determine the luminaire that is most suitable for providing illumination in a haze environment. This can more accurately simulate the use environment of the luminaire, thereby improving the test accuracy.
  • FIG. 1 is a block diagram showing the structure of an illumination test apparatus according to an embodiment of the present invention.
  • an illuminance testing device includes a casing 10, a smog simulation unit 20, and a detecting unit.
  • the casing 10 is provided with a mounting bracket 11 for mounting the luminaire 12 to be tested, and a smog simulation unit.
  • 20 is in communication with the casing 10, and conveys mist and smoke into the casing 10; the detecting unit is disposed in the casing 10, and detects the light intensity of the lamp 12 to be tested.
  • the illuminance test device can test the illumination intensity of the luminaire 12 to be tested in a haze environment, and then test the ability of different types of luminaires 12 to be tested to penetrate the smog to determine the luminaire that is most suitable for providing illumination in a haze environment. . This can more accurately simulate the use environment of the luminaire, thereby improving the test accuracy.
  • the casing 10 has a length of 4.2 m, a width of 1.2 m, and a height of 1.2 m.
  • a black plastic plate is attached to the inner wall surface of the casing 10, and the joints of the respective wall surfaces are coated with black paint to prevent the reflected light of the wall surface from interfering with the detecting unit, thereby ensuring the testing precision of the detecting unit.
  • the first end of the longitudinal direction of the casing 10 is provided with the mounting bracket 11 , and the fixture to be tested 12 is fixedly disposed on the mounting bracket 11 .
  • the mounting bracket 11 is used for fixing the luminaire 12 to be tested, and the position of the luminaire 12 to be tested is fixed during testing to avoid displacement of the luminaire 12 to be tested during testing, thereby ensuring the accuracy of the test.
  • the test data is more comprehensive and accurate, and a plurality of mounting grooves 14 are provided on the casing 10.
  • a plurality of mounting grooves 14 are sequentially spaced apart along the longitudinal direction of the casing 10.
  • the number of the mounting grooves 14 can be selected according to specific test requirements.
  • the casing 10 further includes a partition 13 opposite to the partition 13
  • the distance of the lamp to be tested 12 is adjustably disposed in the casing 10 and divides the casing 10 into two spaces, and the detecting unit is disposed on the partition 13.
  • the partition 13 is inserted into one of the mounting recesses 14 to divide the casing 10 into two spaces.
  • the mounting groove 14 is located at the top of the case 10 and penetrates the top wall of the case 10. It is only necessary to insert the partition into the mounting recess 14 from the top when in use.
  • the mounting recess 14 can be located on other walls of the housing 10, for example, the mounting recess 14 is disposed on both side walls of the housing, and the partition 13 is pushed into the housing 10 from the side.
  • the casing 10 is disturbed. Also included is a sealing plate that is inserted into the mounting recess 14 between the partition 13 and the luminaire 12 to be tested.
  • the sealing plate can seal the mounting groove 14 between the partition 13 and the lamp 12 to be tested, preventing natural light from entering the casing 10, and ensuring the accuracy of the test.
  • the lowest surface of the sealing plate is in line with the inner wall surface of the top wall of the casing 10 to prevent the sealing plate from protruding into the casing 10 to cause light reflection, thereby affecting the test accuracy.
  • the detecting unit is an illuminometer
  • the partition 13 is provided with a placement hole 131, and the illuminometer is disposed in the placement hole 131.
  • the placement hole 131 is located at the center of the spacer 13.
  • the placement holes 131 may have a plurality of and are distributed at different positions of the partition 13 so that the position of the illuminometer can be changed according to requirements, thereby testing the illumination intensity at different positions relative to the luminaire 12 to be tested. .
  • a first opening 15 is further disposed on the side wall of the casing 10.
  • the first opening 15 is located between the lamp 12 to be tested and the partition 13 , and the smog simulation portion 20 communicates with the casing 10 through the first opening 15 .
  • the smog simulation unit 20 includes an atomization unit and a smelting unit.
  • the atomization unit communicates with the tank 10 through the first opening 15 and conveys mist into the tank 10, and the smelting unit communicates with the tank 10 through the first opening 15. And transporting the crucible into the casing 10.
  • the atomizing unit comprises an ultrasonic humidifier, the ultrasonic humidifier has a misting pipe, the second end of the misting pipe is connected with the first opening 15, and the water droplets of 4 micrometers to 10 micrometers atomized by the ultrasonic humidifier are delivered into the casing 10 .
  • the deuteration unit includes a soot generator and a first blower, and combustible materials are placed in the soot generator, and combustibles are burned to generate soot.
  • the first blower is in communication with the soot generator, and the air outlet of the first blower is connected to the first opening 15, and the smoke in the soot generator is blown into the case 10.
  • the luminaire 12 to be tested is fixed on the mounting frame 11 and the luminaire 12 to be tested is turned on until the light output of the luminaire 12 to be tested is stable.
  • the partition 13 is inserted into the desired mounting recess 14 and the unused mounting recess 14 is closed using a sealing plate to isolate ambient natural light.
  • the illumination intensity of the luminaire 12 to be tested in the absence of smog at a distance of 1 m, 2 m and 3 m from the luminaire 12 to be tested may be tested first as control data.
  • an ultrasonic generator is used to emit ultrasonic waves of 1.7 Mhz, and the atomized sheet of the ultrasonic humidifier undergoes high-frequency resonance, and water is thrown away from the water surface to produce fine water droplets having a diameter of 5 ⁇ m to simulate fog.
  • the diameter of the fog in the actual environment is between 4 microns and 10 microns.
  • ultrasonic humidifiers of different frequencies can be used to create fog of different diameters.
  • the ultrasonic humidifier can blow the generated water mist into the casing 10 through the mist outlet pipe, and the illuminometer disposed in the placement hole 131 of the partition plate 13 can test the fog permeability of the lamp 12 to be tested under the mist atmosphere.
  • the position of the partition 13 it is possible to test the illumination intensity of the luminaire 12 to be tested at different distances in the same concentration of fog.
  • the concentration of the mist blown into the casing 10 can be adjusted by the gear position of the ultrasonic humidifier, thereby obtaining a more comprehensive and accurate test result, thereby determining a lamp suitable for illumination in a foggy environment.
  • the combustibles are placed in the soot generator and the combustibles are burned to generate soot, and the soot can be blown into the tank 10 by the first blower to simulate the crucible.
  • the tobacco generator or the soot is placed in the soot generator, the flue gas is burned to generate flue gas, and the first blower blows the flue gas or the soot into the tank 10 through the first opening 15 to simulate the crucible.
  • the penetration of the lamp 12 to be tested at different distances can be tested at different concentrations, and the concentration of different krypton can be adjusted by adjusting the wind speed of the first blower, thereby obtaining different enthalpy concentrations.
  • the penetration of the luminaire 12 to be tested underneath determines the luminaire suitable for illumination in a sturdy environment.
  • the ultrasonic humidifier and the soot generator can be simultaneously turned on at the same time as needed to simultaneously transport mist and helium into the casing 10.
  • multiple types of lamps are selected to perform the fog permeability test of the lamps at different fog concentrations, and the separator 13 is inserted into the mounting groove 14 at a distance of 2 m from the lamp 12 to be tested, and the sealing plate is used to be located in the partition plate. 13 and the mounting groove 14 between the lamp 12 to be tested is sealed, and the gear position of the ultrasonic humidifier is adjusted to test the fogging property of the same lamp 12 to be tested at different fog concentrations at 2 m, and the lamp 12 to be tested can be replaced after replacing the lamp 12 to be tested.
  • the haze of the lamp 12 to be tested at the same fog concentration was tested at 2 m.
  • the fog permeability of the light source under the fog concentration of the three gear positions was tested, and the fog permeability was expressed by the transmittance of light.
  • the transmittance of light is defined as:
  • T is the transmittance
  • E is the illuminance value when there is fog
  • E 0 is the illuminance value when there is no fog.
  • the fog light transmittance of the LED lamps of different wavelengths is yellow light, green light, blue light and red light in descending order.
  • the color temperature is about 3200k (LED9).
  • the incandescent lamp has the strongest fogging ability among all the lamps to be tested 12. Foggy lighting can be illuminated with incandescent lighting.
  • the smog simulation unit can transport the smog into the box to simulate the smog environment, and then the luminaire to be tested is in the smog environment.
  • the test of the illumination intensity enables accurate smog environment simulation to ensure the accuracy of the test and the accuracy of the test.

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  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)

Abstract

一种照度测试装置，包括箱体（10）、雾霾模拟部（20）和检测单元，箱体（10）内设置有安装待测试灯具（12）的安装架（11），雾霾模拟部（20）与箱体（10）连通，并向箱体（10）内输送雾气和烟尘，检测单元设置在箱体（10）内，并检测待测试灯具（12）的光照强度。通过该照度测试装置能够测量照明用具在雾霾环境中的照度，可以为雾霾环境下的照明用具布置提供实验数据。

Description

照度测试装置 技术领域
本发明涉及光学测试设备领域，具体而言，涉及一种照度测试装置。
背景技术
随着工业化的迅速发展，建筑物和汽车等排放的污染物对空气的影响与日俱增，外加城市空气湿度偏大，空气中大量的污染物质和水气得不到流动，从而堆积在近地面层形成雾霾，使得空气的能见度大大降低。这造成雾霾环境下的照明用具照明效果不佳，无法满足照明需要。但现有技术中，无论是道路照明还是其它视觉环境，在研究目标物可见度的时候，都是在理想条件下进行的，即眼睛与目标之间的气态介质(空气)是干燥、洁净的，因而光能的衰减被忽略不计。但是在近些年，雾霾天气已成为一种普遍的现象，由于雾霾的出现会导致实际产生照度值低于计算照度值，产生较大误差，因而现有的照度测试装置和测试方法不能够满足雾霾环境下的照明测试，使得照明用具在雾霾环境下的照明是否能够满足需要无法保证。
光源在雾霾天气中的光输出性能衰减，很大一部分就来自大气气溶胶的消光作用。对大气气溶胶的研究集中在在光学工程和气象学两个方面。光学工程主要研究大气气溶胶对单色光(如激光)的吸收现象；气象学主要研究大气气溶胶对自然光(如阳光)的吸收、散射现象以及能见度判定。目前，涉及定量测定气溶胶光吸收问题的研究很多，但报告的实验数据少，且缺乏系统性。电光源，特别是光谱复杂的气体放电光源和LED光源在雾霾环境下的照明情况没有具体的测试装置和方法。
发明内容
本发明旨在提供一种照度测试装置，以解决现有技术中无法对雾霾环境下的照明设备的照度进行测试的问题。
为了实现上述目的，根据本发明的一个方面，提供了一种照度测试装置，该照度测试装置包括：箱体，箱体内设置有安装待测试灯具的安装架；雾霾模拟部，雾霾模拟部与箱体连通，并向箱体内输送雾气和烟尘；检测单元，检测单元设置在箱体内，并检测待测试灯具的光照强度。
进一步地，安装架设置在箱体的长度方向的第一端，待测试灯具固定设置在安装架上。
进一步地，箱体还包括隔板，隔板相对待测试灯具的距离可调节地设置在箱体内并将箱体分割为两个空间，检测单元设置在隔板上。
进一步地，箱体还包括定位隔板的安装凹槽，安装凹槽为多个，且沿箱体的长度方向依次间隔设置，隔板与任一安装凹槽配合将箱体分割为两个空间。
进一步地，安装凹槽位于箱体的顶部，且贯穿箱体的顶壁，箱体还包括密封板，密封板插入位于隔板和待测试灯具之间的安装凹槽内。
进一步地，检测单元为照度计，隔板上设置有放置孔，照度计设置在放置孔内。
进一步地，箱体的侧壁上设置有第一开口，第一开口位于待测试灯具和隔板之间，雾霾模拟部通过第一开口与箱体连通。
进一步地，雾霾模拟部包括雾化单元和霾化单元，雾化单元通过第一开口与箱体连通，并向箱体内输送雾气，以模拟雾气环境，霾化单元通过第一开口与箱体连通，并向箱体内输送霾，以模拟霾环境。
进一步地，雾化单元包括超声波加湿器，超声波加湿器具有出雾管，出雾管的第二端与第一开口连接，将超声波加湿器雾化的水滴输送至箱体内。
进一步地，霾化单元包括：烟尘发生器，烟尘发生器内放置有可燃物，可燃物燃烧产生烟尘；第一鼓风机，第一鼓风机与烟尘发生器连通，第一鼓风机的出风口与第一开口连接，并将烟尘发生器内的烟尘吹入箱体内。
应用本发明的技术方案，照度测试装置包括箱体、雾霾模拟部和检测单元，箱体内设置有安装待测试灯具的安装架，雾霾模拟部与箱体连通，并向箱体内输送雾气和烟尘；检测单元设置在箱体内，并检测待测试灯具的光照强度。通过该照度测试装置能够测试待测试灯具在雾霾环境下的光照强度，进而测试出不同类型的待测试灯具穿透雾霾的能力，以确定最适合提供在雾霾环境下照明的灯具。这样能够更加精确地模拟出灯具的使用环境，进而提高测试精度。
附图说明
构成本发明的一部分的附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1示出了本发明的实施例的照度测试装置的结构示意图；以及
图2示出了本发明的实施例的照度测试装置测试的同一雾浓度下各待测试灯具的透射率。
附图标记说明：10、箱体；11、安装架；12、待测试灯具；13、隔板；131、放置孔；14、安装凹槽；15、第一开口；20、雾霾模拟部。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
如图1所示，根据本发明的实施例，照度测试装置包括箱体10、雾霾模拟部20和检测单元，箱体10内设置有安装待测试灯具12的安装架11，雾霾模拟部20与箱体10连通，并向箱体10内输送雾气和烟尘；检测单元设置在箱体10内，并检测待测试灯具12的光照强度。通过该照度测试装置能够测试待测试灯具12在雾霾环境下的光照强度，进而测试出不同类型的待测试灯具12穿透雾霾的能力，以确定最适合提供在雾霾环境下照明的灯具。这样能够更加精确地模拟出灯具的使用环境，进而提高测试精度。
在本实施例中，箱体10的长度为4.2m，宽度为1.2m，高度为1.2m。在箱体10的内壁面均贴合有黑色塑料板，各个壁面的衔接处均涂有黑漆，以避免壁面的反射光干扰检测单元，保证检测单元的测试精度。
箱体10的长度方向的第一端设置有该安装架11，待测试灯具12固定设置在安装架11上。安装架11用于固定待测试灯具12，保证测试时待测试灯具12的位置固定，以避免待测试灯具12在测试时发生位移，进而保证测试的准确度。
为了更加全面的测试，使测试数据更加全面准确，在箱体10上设置有多个安装凹槽14。多个安装凹槽14沿箱体10的长度方向依次间隔设置。安装凹槽14的数量可以根据具体测试需要选定，在本实施例中，安装凹槽14有三个，分别位于箱体10上与待测试灯具12相距1m、2m和3m的位置处。箱体10还包括隔板13，隔板13相对 待测试灯具12的距离可调节地设置在箱体10内并将箱体10分割为两个空间，检测单元设置在隔板13上。在本实施例中，隔板13插入其中一个安装凹槽14内，将箱体10分割为两个空间。
为了方便地插拔隔板13提高测试效率，安装凹槽14位于箱体10的顶部，且贯穿箱体10的顶壁。使用时只需从顶部将隔板插入安装凹槽14内即可。在其它实施例中，安装凹槽14可以位于箱体10的其它壁面上，例如安装凹槽14设置在箱体的两个侧壁上，隔板13从侧面推入箱体10内。
在进行与待测试灯具12相距2m或3m的照度测试时，为了避免自然光通过位于隔板13与待测试灯具12之间的安装凹槽14照入箱体10内而干扰测试精度，箱体10还包括密封板，密封板插入位于隔板13和待测试灯具12之间的安装凹槽14内。这样密封板即可将位于隔板13和待测试灯具12之间的安装凹槽14密封，防止自然光进入箱体10内，保证测试的精度。当密封板插入安装凹槽14内时，密封板的最低面与箱体10的顶壁的内壁面高度一致，以防止密封板向箱体10内凸出造成光线反射，而影响测试精度。
在本实施例中，检测单元为照度计，隔板13上设置有放置孔131，照度计设置在放置孔131内。在本实施例中，放置孔131位于隔板13的中心。在其它实施例中，放置孔131可以具有多个，且分布在隔板13的不同位置上，这样可以根据需求改变照度计放置的位置，进而测试相对待测试灯具12处于不同位置上的照明强度。
箱体10的侧壁上还设置有第一开口15，第一开口15位于待测试灯具12和隔板13之间，雾霾模拟部20通过第一开口15与箱体10连通。
雾霾模拟部20包括雾化单元和霾化单元，雾化单元通过第一开口15与箱体10连通，并向箱体10内输送雾气，霾化单元通过第一开口15与箱体10连通，并向箱体10内输送霾。
雾化单元包括超声波加湿器，超声波加湿器具有出雾管，出雾管的第二端与第一开口15连接，将超声波加湿器雾化的4微米至10微米的水滴输送至箱体10内。
霾化单元包括烟尘发生器和第一鼓风机，烟尘发生器内放置有可燃物，可燃物燃烧产生烟尘。第一鼓风机与烟尘发生器连通，第一鼓风机的出风口与第一开口15连接，并将烟尘发生器内的烟尘吹入箱体10内。
本实施例中的照度测试装置的测试过程如下：
将待测试灯具12固定在安装架11上，并打开待测试灯具12直至待测试灯具12的光输出稳定。将隔板13插入需要的安装凹槽14内，并使用密封板将闲置的安装凹槽14封闭，隔绝外界自然光。可以先测试无雾霾情况下的待测试灯具12在与待测试灯具12距离1m、2m和3m处的照明强度，以作为对照数据。
本实施例中，采用超声波发生器发出1.7Mhz的超声波，超声波加湿器的雾化片发生高频谐振，将水抛离水面，产生直径5微米的细小水滴来模拟雾。实际环境中的雾的直径在4微米至10微米之间，在其它实施例中可以采用不同频率的超声波加湿器来产生不同直径的雾。超声波加湿器可以将产生的水雾通过出雾管吹入箱体10内，通过设置在隔板13的放置孔131内的照度计可以测试雾气环境下待测试灯具12的透雾性。通过调节隔板13的位置可以测试在同一浓度的雾气环境下，不同距离的待测试灯具12的照明强度。通过超声波加湿器的档位可以调节吹入箱体10内的雾的浓度，进而可以获得更加全面和准确的测试结果，进而确定适宜在雾气环境中用于照明的灯具。
在烟尘发生器内放置可燃物并使可燃物燃烧以产生烟尘，通过第一鼓风机可以将烟尘吹入箱体10内以模拟霾。在本实施例中，烟尘发生器内放置有烟叶或煤烟灰，烟叶燃烧产生了烟气，第一鼓风机将烟气或煤烟灰通过第一开口15吹入箱体10内模拟霾。通过调节隔板13插入的安装凹槽14可以测试同一霾浓度下，不同距离的待测试灯具12的穿透性，通过调节第一鼓风机的风速可以调节不同的霾的浓度，进而获得不同霾浓度下的待测试灯具12的穿透性，进而确定适宜在霾环境中照明的灯具。
需要的情况下可以同时开启超声波加湿器和烟尘发生器，以同时向箱体10内输送雾气和霾。
本实施例中，选择多个种类的灯具在不同雾浓度下进行灯具透雾性实验，将隔板13插入与待测试灯具12相距2m处的安装凹槽14内，并用密封板将位于隔板13和待测试灯具12之间的安装凹槽14密封，调节超声波加湿器的档位，以测试在2m处同一待测试灯具12在不同雾浓度下的透雾性，更换待测试灯具12后可以测试在2m处不同待测试灯具12在同一雾浓度下的透雾性，本实施例中共测试了三个档位的雾浓度下光源的透雾性，透雾性用光的透射率表示。光的透射率定义为：
T＝E/E0
其中T为透射率，E为有雾时的照度值，E0为无雾时的照度值。
其实验数据如表1所示：
表1：
Figure PCTCN2015074699-appb-000001
由表1可知，随着雾浓度的上升，各待测试灯具12的透雾性均降低。
由图2可知，同一雾浓度下，不同待测试灯具12的透雾性中，对于不同波长的LED灯，其透雾能力由高到低依次为黄光、绿光、蓝光、红光。对于不同色温白光LED灯，色温为3200k左右(LED9)透雾性最佳。在所有待测试灯具12中白炽灯透雾能力最强。雾天照明可以采用白炽灯照明。
从以上的描述中，可以看出，本发明上述的实施例实现了如下技术效果：通过雾霾模拟部能够向箱体内输送雾霾以模拟雾霾环境，进而进行待测试灯具在雾霾环境中的照射强度的测试，这样能够进行精确地雾霾环境模拟，进而保证测试的准确性和测试精度。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种照度测试装置，其特征在于，包括：
    箱体(10)，所述箱体(10)内设置有安装待测试灯具(12)的安装架(11)；
    雾霾模拟部(20)，所述雾霾模拟部(20)与所述箱体(10)连通，并向所述箱体(10)内输送雾气和烟尘；
    检测单元，所述检测单元设置在所述箱体(10)内，并检测所述待测试灯具(12)的光照强度。
  2. 根据权利要求1所述的照度测试装置，其特征在于，所述安装架(11)设置在所述箱体(10)的长度方向的第一端，所述待测试灯具(12)固定设置在所述安装架(11)上。
  3. 根据权利要求2所述的照度测试装置，其特征在于，所述箱体(10)还包括隔板(13)，所述隔板(13)相对所述待测试灯具(12)的距离可调节地设置在所述箱体(10)内并将所述箱体(10)分割为两个空间，所述检测单元设置在所述隔板(13)上。
  4. 根据权利要求3所述的照度测试装置，其特征在于，所述箱体(10)还包括定位所述隔板(13)的安装凹槽(14)，所述安装凹槽(14)为多个，且沿所述箱体(10)的长度方向依次间隔设置，所述隔板(13)与任一所述安装凹槽(14)配合将箱体(10)分割为两个空间。
  5. 根据权利要求4所述的照度测试装置，其特征在于，所述安装凹槽(14)位于所述箱体(10)的顶部，且贯穿所述箱体(10)的顶壁，所述箱体(10)还包括密封板，所述密封板插入位于所述隔板(13)和所述待测试灯具(12)之间的安装凹槽(14)内。
  6. 根据权利要求3所述的照度测试装置，其特征在于，所述检测单元为照度计，所述隔板(13)上设置有放置孔(131)，所述照度计设置在所述放置孔(131)内。
  7. 根据权利要求3所述的照度测试装置，其特征在于，所述箱体(10)的侧壁上设置有第一开口(15)，所述第一开口(15)位于所述待测试灯具(12)和所述 隔板(13)之间，所述雾霾模拟部(20)通过所述第一开口(15)与所述箱体(10)连通。
  8. 根据权利要求7所述的照度测试装置，其特征在于，所述雾霾模拟部(20)包括雾化单元和霾化单元，所述雾化单元通过所述第一开口(15)与所述箱体(10)连通，并向所述箱体(10)内输送雾气，以模拟雾气环境，所述霾化单元通过所述第一开口(15)与所述箱体(10)连通，并向所述箱体(10)内输送霾，以模拟霾环境。
  9. 根据权利要求8所述的照度测试装置，其特征在于，所述雾化单元包括超声波加湿器，所述超声波加湿器具有出雾管，所述出雾管的第二端与所述第一开口(15)连接，将所述超声波加湿器雾化的水滴输送至所述箱体(10)内。
  10. 根据权利要求8所述的照度测试装置，其特征在于，所述霾化单元包括：
    烟尘发生器，所述烟尘发生器内放置有可燃物，所述可燃物燃烧产生烟尘；
    第一鼓风机，所述第一鼓风机与所述烟尘发生器连通，所述第一鼓风机的出风口与所述第一开口(15)连接，并将所述烟尘发生器内的烟尘吹入所述箱体(10)内。
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