GB/T 33866-2017 Measurement of solar ultraviolet radiation by broadband ultraviolet radiometer method GB/T33866-2017 |tt||Standard compression package decompression password: www.bzxz.net
The standard specifies the site requirements, measurement system, data collection and processing, installation and maintenance for measuring solar ultraviolet radiation using broadband ultraviolet radiometer. This standard is applicable to the measurement of solar ultraviolet radiation in the fields of meteorology, environment and agriculture.

ICS07.060
National Standard of the People's Republic of Chinawww.bzxz.net
GB/T33866—2017
Measurement for solar ultraviolet radiation
Broadband ultraviolet radiometer method
Measurement for solar ultraviolet radiation--Broadband ultraviolet radiometer method2017-07-12Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of ChinaStandardization Administration of China
2018-02-01Implementation
Normative references
Terms and definitions
Site requirements
Measurement system
Data acquisition and processing
Installation and maintenance
References·
GB/T33866—2017
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This standard was drafted in accordance with the rules given in GB/T1.1-2009. This standard was proposed by the China Meteorological Administration.
This standard is under the jurisdiction of the National Technical Committee for Standardization of Meteorological Instruments and Observation Methods (SAC/TC507). The drafting units of this standard are: National Meteorological Metrology Station, Jiangsu Radio Science Research Institute Co., Ltd. The main drafters of this standard are: Ding Lei, Chong Wei, Yang Yun, Quan Jimei, Gu Pingyue, Xu Yigang. GB/T33866—2017
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1 Scope
Solar ultraviolet radiation measurement
Broadband ultraviolet radiation meter method
GB/T33866—2017
This standard specifies the site requirements, measurement system, data acquisition and processing, installation and maintenance for measuring solar ultraviolet radiation using broadband ultraviolet radiation meter.
This standard is applicable to the measurement of solar ultraviolet radiation in meteorology, environment and agriculture. 2 Normative references
The following documents are indispensable for the application of this document. For all dated references, only the dated version applies to this document. For all undated references, the latest version (including all amendments) applies to this document. GB/T31163—2014 Solar Energy Resources Terminology 3 Terms and Definitions
The terms and definitions defined in GB/T31163-2014 and the following terms and definitions apply to this document. 3.1
Ultraviolet radiation ultraviolet radiation; UV is electromagnetic radiation with a wavelength shorter than visible radiation but longer than X-rays. Note: Ultraviolet radiation with a wavelength between 100nm and 400nm can be further divided into three bands: UV-A (315nm~400nm), UV-B (280nm~315nm), and UV-C (100nm~280nm). Ultraviolet radiation between 1nm and 100nm is called vacuum ultraviolet radiation. [GB/T31163—2014, Definition 5.5] 3.2
Ultraviolet radiation meter ultravioletradiometer broadband ultraviolet radiation meter broadband ultravioletradiometer is an instrument with a bandwidth greater than tens of nanometers to measure ground solar ultraviolet radiation (UV). Note: According to the different measurement spectrum ranges, it can be divided into three categories: UV-A (315nm~400nm), UV-B (280nm~315nm) or UV-AB (280nm~400nm) broadband ultraviolet radiation meter.
4 Site requirements
Areas that can represent local common characteristics should be selected to avoid places with serious air pollution such as local fog and smoke. There should be no obstacles with an altitude angle exceeding 5° within the field of view of the instrument. There should be no radiation interference sources around that affect the change of the instrument indication. 5 Measurement system
5.1 Composition
It consists of a broadband ultraviolet radiation meter, a data logger, a mounting bracket and a power supply module. 1
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GB/T33866—2017
Technical indicators
Ultraviolet radiation meter
The spectral range shall meet the following requirements:
UV-A ultraviolet radiation meter: 315nm400nm
b) UV-B ultraviolet radiation meter: 280nm~315nmUV-AB ultraviolet radiation meter: 280nm～400nm. 5.2.2
Data logger
Should meet the following requirements:
The range is -3V～+3V;
The measurement error should not be greater than 0.5% (full scale): serial communication interface (RS-232, RS-485/422) or wireless transmission. 6 Data collection and processing
Time system and solar boundary
The local mean solar time is adopted, and the local mean solar time 24 hours is the solar boundary. 2 Data collection method
If the output value of the broadband ultraviolet radiation meter is irradiance, it is directly collected. 6.2.2 If the output value of the broadband ultraviolet radiation meter is a voltage value, the voltage signal is converted into an irradiance value according to formula (1): EK
Where:
E——irradiance, in watts per square meter (W/m\); V——voltage output value of the broadband ultraviolet radiation meter, in microvolts (μV); K——sensitivity of the broadband ultraviolet radiation meter, in microvolts per square meter per watt LμV/(W·m-2)]. 6.3
Sampling and algorithm
Sampling time
The sampling time interval is 1s.
Quality control of sampling values
6.3.2.1 The sampling values ​​are judged to be valid if they are within the upper and lower limits specified in Table 1. 6.3.2.2 The change between two adjacent sampling values ​​should be within the allowable range of Table 1. 6.3.2.3
When calculating the minute average of irradiance, the number of valid sampling samples should be greater than 2/3 of the total number of sampling samples, otherwise the minute average value is judged to be "missing".
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UV-A/UV-AB
Table 1 Identification conditions and limit values ​​of "valid" solar ultraviolet radiation sampling values
Calculation of irradiance minute average value
Calculated according to formula (2):
Where:
E—arithmetic mean of irradiance per minute;
GB/T33866—2017
Unit is watt per square meter
The maximum allowed change between two adjacent sampling values ​​is 50
(2)
E, the instantaneous value (sample) of the sampling in one minute, judged according to Table 1, invalid sampling value is recorded as E, = 0; m
The number of "valid" samples in the measurement period. 6.3.4 Minute irradiation
The minute average of irradiance multiplied by 60S.
6.3.5 Hourly irradiation
The cumulative value of minute irradiation in one hour. 6.3.6
Daily irradiation
The cumulative value of hourly irradiation in one day.
6.4 Data records
Should at least include local time, minute average value, minute minimum irradiance value, minute maximum irradiance value, minute average standard deviation, hourly irradiation and daily irradiation.
Installation and maintenance
Installation and maintenance of UV radiation meter
Preparation before installation
Visually check that the instrument is intact and the instrument calibration certificate is valid. Installation
Place the instrument with the terminal facing north, adjust the level, and fix it. 7.1.3 Daily maintenance
The UV radiation meter should be maintained daily to ensure:3
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GB/T33866—2017
The instrument should be intact and level;
The instrument should be clean. If there is dust, frost, fog and raindrops, it should be cleaned with a lens brush or suede in time. Be careful not to scratch or wear the receiving surface or quartz cover;
Replace the discolored dryer in time;
When the quartz cover is scratched or there is condensation in the cover, the instrument should be replaced in time7.1.4
It should be sent to the legal metrology agency for calibration regularly. When replacing or repairing important parts, or when there is doubt about the performance of the instrument, it should be calibrated in time. 7.2
Installation and maintenance of the data acquisition system
Installation and maintenance should be carried out in accordance with the product manual. References
GB/T33866—2017
World Meteorological Organization.Guide to Meteorological Instruments and Methods of Observation (Seventh edition), No. 8, 2oo8 GB/T33866-2017
People's Republic of China
National Standard
Solar Ultraviolet Radiation Measurement
Broadband Ultraviolet Radiometer Method
GB/T33866—2017
Published and distributed by China Standards Press
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Printed by Qinhuangdao Printing Factory of China Standard Press Distributed by Xinhua Bookstores in various regions
Format 880×12301/16
Printing Sheet 0.75 Word Count 12,000 Words
First Edition July 2017
First Printing July 2017
Book Number: 155066·1-56313
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