有關(guan)手(shou)機(ji)輻射問題的(de)爭議(yi)非常多(duo)，而且時至今日始(shi)終(zhong)沒有一(yi)個很確(que)切(qie)、很科學(xue)的(de)說(shuo)法，但是以訛傳訛的(de)流(liu)言(yan)卻不少。《北京(jing)青(qing)年報》近日起(qi)開辟了一(yi)個新(xin)的(de)《試(shi)“真”試(shi)“假(jia)”》欄(lan)目，選取與大家生活息(xi)息(xi)相關(guan)的(de)傳言(yan)，由權威機(ji)構進行科學(xue)實驗，以分辨其真偽(wei)。首先下刀的(de)就是手(shou)機(ji)輻射話題，確(que)切(qie)地說(shuo)是手(shou)機(ji)充(chong)電(dian)的(de)時候打電(dian)話是否會(hui)導致輻射量(liang)陡增(zeng)？

實驗緣由

網絡傳(chuan)言警告充電別(bie)打電話

網(wang)(wang)絡(luo)傳言稱，手(shou)(shou)機(ji)(ji)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)時輻(fu)(fu)射加(jia)大(da)，應避免電(dian)(dian)(dian)(dian)(dian)(dian)池充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)時打電(dian)(dian)(dian)(dian)(dian)(dian)話以及晚上(shang)(shang)(shang)(shang)把正在充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)的(de)手(shou)(shou)機(ji)(ji)放在枕邊。一位網(wang)(wang)友留言說：“以前晚上(shang)(shang)(shang)(shang)手(shou)(shou)機(ji)(ji)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)放在離床頭不(bu)遠(yuan)的(de)地方，方便晚上(shang)(shang)(shang)(shang)醒時看看幾(ji)點，但現在不(bu)敢了(le)(le)，因為手(shou)(shou)機(ji)(ji)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)時輻(fu)(fu)射是(shi)很(hen)(hen)大(da)的(de)。當手(shou)(shou)機(ji)(ji)上(shang)(shang)(shang)(shang)網(wang)(wang)、來電(dian)(dian)(dian)(dian)(dian)(dian)、來信息時，剛好這(zhe)(zhe)時在已開的(de)收(shou)(shou)音(yin)(yin)機(ji)(ji)或信箱(xiang)邊，收(shou)(shou)音(yin)(yin)機(ji)(ji)或信箱(xiang)就(jiu)會(hui)發出bi bi bi……的(de)聲音(yin)(yin)，這(zhe)(zhe)都是(shi)信號的(de)干(gan)擾(rao)。前天我在聽收(shou)(shou)音(yin)(yin)機(ji)(ji)，手(shou)(shou)機(ji)(ji)沒電(dian)(dian)(dian)(dian)(dian)(dian)，充(chong)(chong)吧！這(zhe)(zhe)時收(shou)(shou)音(yin)(yin)機(ji)(ji)受到干(gan)擾(rao)了(le)(le)，收(shou)(shou)音(yin)(yin)機(ji)(ji)的(de)信號減弱，干(gan)擾(rao)是(shi)連續不(bu)斷的(de)，不(bu)充(chong)(chong)就(jiu)沒有(you)干(gan)擾(rao)了(le)(le)。手(shou)(shou)機(ji)(ji)在這(zhe)(zhe)時接觸身體(ti)，收(shou)(shou)音(yin)(yin)機(ji)(ji)就(jiu)受到極大(da)的(de)干(gan)擾(rao)，電(dian)(dian)(dian)(dian)(dian)(dian)臺無法收(shou)(shou)聽，我就(jiu)此推斷在這(zhe)(zhe)時手(shou)(shou)機(ji)(ji)的(de)輻(fu)(fu)射肯(ken)定很(hen)(hen)強……所以以后(hou)晚上(shang)(shang)(shang)(shang)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)我會(hui)把手(shou)(shou)機(ji)(ji)放到離床很(hen)(hen)遠(yuan)的(de)地方。”

帶著對手(shou)機充(chong)電時通話，輻射是否會增(zeng)大的(de)疑問，記者來到手(shou)機性能測試(shi)的(de)權威(wei)機構――中(zhong)國泰(tai)爾實(shi)驗室

全(quan)(quan)電波暗(an)室內進行多次(ci)實驗(yan),本次(ci)實驗(yan)在全(quan)(quan)電波暗(an)室內進行，實驗(yan)室是一個經過(guo)屏蔽(bi)設(she)計的(de)六面盒體，就像一間(jian)全(quan)(quan)封閉的(de)屋子，“屋”內擺滿了藍色錐形吸波材料，錐體底(di)部(bu)被固定在地板、墻(qiang)壁和天花板上。

據工程師介紹(shao)，錐形吸波(bo)材(cai)料由聚氨酯泡(pao)沫制(zhi)成(cheng)，可有效吸收(shou)入(ru)射的電磁波(bo)能量，并(bing)使其散射大幅度衰減，從而保證實驗環(huan)境準確可靠(kao)。在實驗室里(li)，只要關(guan)上門，手機(ji)便接收(shou)不(bu)到任何(he)信號，同時，這個密閉環(huan)境內也(ye)不(bu)會受到任何(he)外(wai)界信號干(gan)擾。

在實(shi)驗(yan)室中(zhong)間，有一個(ge)模擬人類頭部(bu)的(de)實(shi)驗(yan)裝(zhuang)置(zhi)，實(shi)驗(yan)裝(zhuang)置(zhi)置(zhi)于轉臺(tai)上(shang)。實(shi)驗(yan)過程(cheng)中(zhong)，需(xu)要(yao)把手(shou)(shou)機固定在“頭部(bu)”的(de)耳邊，在平常(chang)的(de)測試中(zhong)，實(shi)驗(yan)員通常(chang)都把手(shou)(shou)機屏(ping)幕向內貼在耳邊，本次實(shi)驗(yan)為(wei)方便拍照，把手(shou)(shou)機屏(ping)幕向外(wai)粘(zhan)貼。

實驗結論

手(shou)機發射功率在允許誤差范圍內(nei)沒(mei)有變(bian)化(hua)

本次用于測試的手機制式分別為GSM（中國移動全球通）、WCDMA（中國聯通3G）和CDMA（中國電信），三個手機都是市場占有量比較大的品牌手機，充電器為原廠充電器。

為測(ce)量(liang)(liang)手(shou)(shou)(shou)機(ji)(ji)(ji)周圍整(zheng)個(ge)球面所有角度的發射(she)功率，測(ce)試(shi)(shi)過(guo)(guo)程中手(shou)(shou)(shou)機(ji)(ji)(ji)跟隨轉臺自轉、公轉，實(shi)(shi)驗(yan)人(ren)員分別在通(tong)話(hua)和充電(dian)通(tong)話(hua)的情況下測(ce)試(shi)(shi)手(shou)(shou)(shou)機(ji)(ji)(ji)的發射(she)功率，每(mei)個(ge)手(shou)(shou)(shou)機(ji)(ji)(ji)分別測(ce)試(shi)(shi)兩次，順序為GSM、WCDMA、CDMA、CDMA、WCDMA、GSM，實(shi)(shi)驗(yan)數(shu)據(ju)取平(ping)均值。當實(shi)(shi)驗(yan)開始時，由實(shi)(shi)驗(yan)室的基站模擬器發出(chu)手(shou)(shou)(shou)機(ji)(ji)(ji)信(xin)號，實(shi)(shi)驗(yan)人(ren)員通(tong)過(guo)(guo)測(ce)量(liang)(liang)天(tian)線測(ce)量(liang)(liang)手(shou)(shou)(shou)機(ji)(ji)(ji)發射(she)功率。測(ce)試(shi)(shi)得到了6組實(shi)(shi)驗(yan)數(shu)據(ju)。

通過(guo)六組數據對比，充電和非(fei)充電情況(kuang)下通話，手機發(fa)射功率在允許誤差范圍(wei)內沒(mei)有(you)變化。