JJG 2033-1989 Verification System for Luminance Measuring Instruments JJG2033-1989 Standard Download Decompression Password: www.bzxz.net
This verification system is applicable to the verification of luminance (brightness) measuring instruments. It specifies the use of the national standard of luminance unit candela per square meter, the full set of basic measuring instruments included in the standard, the metrological parameters of the standard, and the procedure for transferring the luminance unit value to the working measuring instrument with the help of the secondary standard, working standard, and standard, and specifies its uncertainty and basic verification methods.

National Metrology System of the People's Republic of China JJG 2033—89
Light Metering Instruments
Approved on September 11, 1989
Implemented on July 1, 1990
National Technical Supervision
Verification System of Light Metering Instruments
Verification Suhomo of MedsuringFnstuments ForLtminane
3G2033—89
This national technical system was approved on September 11, 1989, and has been in force since July 1, 1990. The starting unit is China Academy of Basic Sciences
China Lake Testing Technology Research Institute
This technical document is interpreted by the drafting unit, the main drafter of this system, and the drafter
Rou Xiaoqiu
Institute of Computer Science
Metering base inference instrument
Erjingsheng standard instrument·
Sanzheng measurement instrument
Calibration system for optical measuring instrument
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13G2033—89
Page 3 No. 1
Calibration system for brightness measuring instrument
This instrument is applicable to optical variable (sensing) meter, especially for long-distance measurement. It stipulates the use of national standards for light density units (c/m2), includes all basic measuring instruments, standard measuring parameters and method standards, working standards and standards for transmitting light density unit values ​​to workers, and specifies their uncertainty diagrams and basic verification methods, etc.
- National optical density standard
1.1 National optical density standard is used to reproduce light density units, and the light density standard transmits the value to the photometer to ensure the unification of light measurement values ​​across the country. 1.2 The national standard for light intensity consists of the following measuring instruments and devices: a set (not less than 1) high-quality luminous intensity sub-standard, with an uncertainty of 0.34%, the brightness of which is 2856K, b, a set (not less than 2) sub-standard reflective white boards (with a total uncertainty of 0.5%2, E, and a light intensity reference device. 1.3 The national standard for light brightness is 3~1×10cd/m2. 1.4 The national standard for light width has a total uncertainty of 0.8%, and the confidence interval is 3 or less. The national standard for light width is 2.1 The national standard for light width consists of the following measuring instruments and devices: a set (not less than 100mm) of luminous intensity sub-standard, with a total uncertainty of 0.36%, the brightness of which is 2856K, b, a set (not less than 2) sub-standard reflective white boards (with a total uncertainty of 0.5%, E, and a light intensity reference device. The Fu Mo is 2855K, b, a (not for this block) secondary source is opposite to this pole (total uncertainty is 6.55%)
c, light-related secondary benchmark wire:
2.2 Light quality standard light value range is 3~1×104/m3
2.3 Light variation standard total uncertainty is 6085% 3 Light service construction work its standard
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3.1 The charging work used a certain cursor light
Request network legend to give the light point calculation
3.2 Brightness seat 1 as the standard mountain product is 2856K luminous flux T as the basis broadcast lamp (total uncertainty is 0.5 add) 7 as the Ya flow difference plate (uncertainty is 0.6%) and light measurement device composition, three as the basis wet The specifications of the lamps shall be no less than 3 and the number of the lamps shall be no less than 5. There shall be no less than 2 working base reflective panels. 3.3 The light width value range of the working base is 2×10*~1×10″cd/m+3.4 The total uncertainty of the working base of the light spot is 6%. The second industry standard test equipment
4-sensitive photosensitivity standard
4.1-slow light brightness standard uses a second-level photometric standard and a photometer to perform calibration on the light.
42-first-level photometric standard: first-level luminous intensity standard with a distribution temperature of 2%56K (total uncertainty 1.2%), first-level standard set reflective self-luminous night (total uncertainty 1) The photometric measurement consists of three parts. The specifications of the certification lamps shall be no less than 3 types, and each lamp can have no less than 3 lamps. The standard panels shall consist of no less than 1 year. 4.3 The first level standard has a light intensity range of ×10-1×10cd/m
4.4 The first level standard has a total uncertainty of 1.6%. 5 Level standard
5.1 The second edition light standard is used to calibrate a digital brightness meter. It can be calibrated on the light
5.2 The second level light intensity standard lamp (total uncertainty is 18%) is used for the second level luminous intensity standard lamp (total uncertainty is 15%) and the second level standard mixed reflection point (total uncertainty is 15%). The specification of the standard lamp is not less than 3, the number of types is not less than 3, the number of reflectors is not less than 2, 5.3 The second level light intensity is 2×10110dmG2033-8
5.4 The second level light intensity standard has a total uncertainty of 2.4%. 6 Standard brightness meter
6,1 Standard brightness meter is used for the first and third level brightness test. The relative method is used for the calibration. The brightness of the two levels is calculated. 6.2 The range of the standard brightness meter is 1×17+~2×101/*63 The allowable error of the standard brightness meter is 2.5%, and the third level brightness meter uses a measuring cell of ×~1/
7.2 The allowable direct current efficiency of the first level brightness meter is 5%. 8 Level brightness meter
8,1 The second level brightness should be 1×103~2×13*/m*8.2 The error of the second level brightness meter is 10 bath. Four light city combustion meter inspection and safety system diagram
Brightness measuring instrument verification system diagram
Light welcome home
3 - × 10cd/i2
Light washing cup method
Brightness pressure
3-1×10*d/m2
G = 11.95%
Beijing University of Aeronautics and Astronautics calibration)
Brightness signal standard
2 01×:
Light track calibration method
Brightness standard
2 ×108~1 104 c/m2
Object calibration
Two meals of light in the standard
2× 10-1~[ ×103 cu/m2
Light purity calibration method
First brightness pressure meter
2 ×10 -2~ 3 ×104 d/m
World War II light density meterbzxz.net
J.4 21 cd/m2
Fixed length determination method
Jingxue light altimeter
1 ×10 a-2×105 cd/m
Ratio shielding method
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