Kodi kuyesa kwa SAR ndi chiyani?

SAR, yomwe imadziwikanso kuti Specific Absorption Rate, imatanthawuza mafunde a electromagnetic omwe amamwetsedwa kapena kudyedwa pa unit mass of human tissues. Chigawochi ndi W/Kg kapena mw/g. Imatanthawuza kuchuluka kwa mayamwidwe amphamvu a thupi la munthu akakumana ndi ma radio frequency electromagnetic fields.
Kuyesa kwa SAR kumayang'ana kwambiri zinthu zopanda zingwe zokhala ndi tinyanga pamtunda wa 20cm kuchokera mthupi la munthu. Amagwiritsidwa ntchito kutiteteza ku zida zopanda zingwe zomwe zimaposa mtengo wotumizira wa RF. Sikuti tinyanga zonse zotumizira ma waya opanda zingwe pamtunda wa 20cm kuchokera mthupi la munthu zimafunikira kuyezetsa kwa SAR. Dziko lililonse lili ndi njira ina yoyesera yotchedwa kuwunika kwa MPE, kutengera zinthu zomwe zimakwaniritsa zomwe zili pamwambapa koma zili ndi mphamvu zochepa.

Pulogalamu yoyesera ya SAR ndi nthawi yotsogolera:
Kuyesa kwa SAR kumakhala ndi magawo atatu: kutsimikizika kwa bungwe, kutsimikizira kachitidwe, ndi kuyesa kwa DUT. Nthawi zambiri, ogulitsa aziwunika nthawi yoyeserera potengera zomwe zidapangidwa. Ndipo pafupipafupi. Kuphatikiza apo, ndikofunikira kuganizira nthawi yoyambira yoyeserera malipoti ndi ziphaso. Kuyesedwa pafupipafupi kumafunika, ndiye kuti nthawi yayitali yoyesera ikufunika.
Xinheng Detection ili ndi zida zoyesera za SAR zomwe zimatha kukwaniritsa zosowa zamakasitomala, kuphatikiza zoyeserera mwachangu za polojekiti. Kuphatikiza apo, kuyezetsa pafupipafupi kumakwirira 30MHz-6GHz, pafupifupi kuphimba ndikutha kuyesa zinthu zonse pamsika. Makamaka pakutchuka kwachangu kwa 5G pazogulitsa za Wi Fi ndi zinthu zotsika kwambiri za 136-174MHz pamsika, Kuyesa kwa Xinheng kumatha kuthandiza makasitomala kuthana ndi zovuta zoyesa ndi certification, kupangitsa kuti malonda alowe bwino pamsika wapadziko lonse lapansi.

Miyezo ndi malamulo:
Mayiko ndi malonda osiyanasiyana ali ndi zofunikira zosiyana pa malire a SAR ndi ma frequency oyesera.
Gulu 1: Mafoni am'manja

Gulu 2: Mafoni oyankhulana

Table3: PC

Kukula kwazinthu:
Zodziwika ndi mtundu wazinthu, kuphatikiza mafoni am'manja, ma walkie talkies, mapiritsi, ma laputopu, USB, ndi zina;
Zodziwika ndi mtundu wa chizindikiro, kuphatikiza GSM, WCDMA, CDMA, S-TDMA, 4G (LTE), DECT, BT, WIFI ndi zinthu zina za 2.4G, zinthu za 5G, ndi zina zambiri;
Zosankhidwa ndi mtundu wa certification, kuphatikiza CE, IC, Thailand, India, ndi zina zotero, mayiko osiyanasiyana ali ndi zofunikira zosiyanasiyana za SAR.
BTF Testing Lab ndi malo oyesera ovomerezeka ndi China National Accreditation Service for Conformity Assessment (CNAS), nambala: L17568. Pambuyo pakukula kwazaka zambiri, BTF ili ndi labotale yofananira ndi ma electromagnetic, labotale yolumikizirana opanda zingwe, labotale ya SAR, labotale yachitetezo, labotale yodalirika, labotale yoyezetsa ma batire, kuyezetsa mankhwala ndi ma labotale ena. Imayenderana bwino ndi ma elekitirodi, ma frequency a wailesi, chitetezo chazinthu, kudalirika kwa chilengedwe, kusanthula kulephera kwa zinthu, ROHS/REACH ndi kuyesa kwina. BTF Testing Lab ili ndi malo oyezera akatswiri komanso athunthu, gulu lazoyeserera ndi akatswiri a certification, komanso kuthekera kothana ndi zovuta zosiyanasiyana zoyesa ndi ziphaso. Timatsatira mfundo zotsogola za "chilungamo, kusakondera, kulondola, ndi kukhwima" ndikutsata mosamalitsa zofunikira za ISO/IEC 17025 test and calibration laboratory management system for science management. Tadzipereka kupatsa makasitomala ntchito zabwino kwambiri. Ngati muli ndi mafunso, chonde omasuka kulankhula nafe nthawi iliyonse.