CE認證SAR測試概述

       SAR測試是指電磁波吸收比值或比吸收率，在CE認證中標準采用限值標準

       EN 50360-2001 Product standard to demonstrate the compliance of mobile phones with the basic restrictions related to human exposure to electromagnetic fields(300 MHz – 3 GHz)產(chǎn)品標準

       EN 50566‐2013 Product standard to demonstrate compliance of radio frequency fields from hand held and body-mounted wireless communication devices used by the general public (30 MHz -- 6 GHz)技術標準

       EN 62209-1-2006 Human exposure to radio frequency fields from hand-held and body-mounted wireless communication  devices — Human models, instrumentation, and procedures —Part 1: Procedure to determine the specific absorption rate (SAR) for  hand-held devices used in close proximity to the ear (frequency range  of 300 MHz to 3 GHz)

       EN 62209-2-2010 Human exposure to radiofrequency fields from hand-held and body mounted wireless communication devices — Human models, instrumentation, and procedures Part 2: Procedure to determine the specific absorption rate (SAR) for wireless communication devices used in close proximity to the human body(frequency range of 30 MHz to 6 GHz) 

       EN 62479-2010 Assessment of the compliance of low power electronic and electrical apparatus with the basic restrictions related to human exposure to electromagnetic fields (10 MHz - 300 GHz)

       其中，技術標準EN 62209-2-2010作為產(chǎn)品標準EN 50566‐2013的技術規(guī)范性文件，定義body SAR檢測距離，由產(chǎn)品制造商按照定義其產(chǎn)品預期使用的典型距離。如手機類， body SAR可定義并采用10 mm/ 15 mm作為評估距離。

標準重大變更        

       2014年，法國對標準EN 50566‐2013提出異議，指出應考慮便攜和移動式產(chǎn)品的具體使用條件，并應提出body SAR 的評估距離。歐盟經(jīng)過評估后認為該提議合理，需對EN50566進行修訂補充，內(nèi)容如下：    

       警示:基于安全性目標,結合指令1999/5/EC的Article 3(1)(a)條款以及附件I 至指令2006/95/ EC，規(guī)定在使用此測試標準時應符合相關間隔距離的規(guī)定，并能反映出設備實際日常使用時的真實情況，確保公眾在使用（30MHz－6GHz）手持式和身體佩戴式無線通信設備時的安全性。 舉例說明，對于肢體SAR評估（限值為4W/kg），測量間隔距離為0（設備直接接觸模型）；對于身體body SAR（限值為2W/kg），測量間隔距離可以是幾mm。 【W(wǎng)arning: The application of this publication shall observe certain conditions relating to the separation distance, reflecting the practical day to day use, ensuring the safe use of handheld and body‐mounted wireless communication devices used by the general public (30 MHz ‐ 6 GHz), for the purposes of the safety objectives provided for in Article 3 (1) (a) of Directive 1999/5/EC, in conjunction with Annex I to Directive 2006/95/EC. For example, for limb SAR measurements (limit 4 W/kg), no separation distance may be used (device in contact); for trunk SAR measurements (limit 2 W/kg) a separation distance of less than a few millimetres may be used.】     

       據(jù)悉，歐盟將很可能在近期，即2016年中，推行：肢體SAR測量（限值為4W/kg），測量間隔距離為0；body SAR（限值為2W/kg），測量間隔距離為5mm。因此，對于近期計劃開展歐盟SAR檢測的項目各位負責人，同耀實驗室特別提醒：請?zhí)崆白屑氉龊醚邪l(fā)評估，避免在認證時出現(xiàn)fail，而使整個認證周期超出控制范圍。

       以下是實驗室分別驗證15mm/10mm/5mm/0mm Body SAR所得到的一組數(shù)據(jù)，供參考。