Site na mmepe nke teknụzụ ozi, ọha na eze na-enwewanye nchegbu banyere mmetụta electromagnetic radieshon sitere na ikuku nkwurịta okwu ikuku na ahụike mmadụ, n'ihi na ekwentị mkpanaaka na mbadamba nkume aghọwo akụkụ dị mkpa nke ndụ anyị kwa ụbọchị, ma ọ bụrụ na ọ bụ ka anyị na ndị hụrụ n'anya na-akpakọrịta. ndị, na-akpakọrịta n'ọrụ, ma ọ bụ nanị na-enwe ntụrụndụ n'okporo ụzọ, ngwaọrụ ndị a agbanweela ụzọ ndụ anyị n'ezie. Ya mere, ọ dị mkpa ijide n'aka na ngwaọrụ ndị a bụ enyi na enyi na nchekwa iji. Nke a bụ ebe ụlọ nyocha BTF na nka ya na SAR, RF, T-Coil na ule njikwa olu na-abata.
Nnwale SAR (ọnụego nnabata a kapịrị ọnụ) bụ maka ngwaọrụ enwere ike ibugharị, dị ka ekwentị mkpanaaka, mbadamba, elekere na laptọọpụ, wdg. Nnwale SAR bụ ihe ikike elektrọnịkị na-etinye ma ọ bụ rie n'otu akụkụ nke sel mmadụ. Ụlọ nyocha ule BTF anyị bụ ọkachamara na nyocha SAR ma kwadoo ya nke ọma iji mezuo ihe achọrọ maka gburugburu ule, yana ịhụ na akụrụngwa na-akwado oke nchekwa nke ndị isi nchịkwa setịpụrụ. Site na ịme nnwale SAR, ndị nrụpụta nwere ike ekwe nkwa na ngwaahịa ha anaghị etinye ndị ọrụ ihe egwu ọ bụla.
| Ọnọdụ ahụ | Uru SAR (W/Kg) | |
| Ọhaneze Ndị Mmadụ/Nkpughe A Na-achịkwaghị achịkwa | Ngosipụta ọrụ/achịkwa | |
| Ahụ dum SAR (nkezi n'elu ahụ dum) | 0.08 | 0.4 |
| Akụkụ-ahụ SAR (nkezi karịa gram 1 nke anụ ahụ) | 2.0 | 10.0 |
| SAR maka aka, nkwojiaka, ụkwụ na nkwonkwo ụkwụ (nkezi karịa gram iri ọ bụla) | 4.0 | 20.0 |
| IHE: Ọnụ ọgụgụ ndị mmadụ n'ozuzu/mkpughe a na-achịkwaghị achịkwa: Ebe enwere mkpughe nke ndị na-enweghị ihe ọmụma ma ọ bụ njikwa nke ikpughe ha. Ogbe mmadụ/oke mkpughe nke a na-achịkwaghị achịkwa na-adabara na ọnọdụ ndị ọha na eze nwere ike kpughee ma ọ bụ nke ndị ekpughere n'ihi ọrụ ha nwere ike ghara ime ka ha mara nke ọma ikike nke ikpughe ma ọ bụ enweghị ike ịchịkwa ikpughe ha. Ndị otu ọha na eze ga-abata n'okpuru ngalaba a mgbe mkpughe na-agbasaghị ọrụ; dịka ọmụmaatụ, n'ihe gbasara ikuku ikuku nke na-ekpughere ndị mmadụ na gburugburu ya. Ngosipụta ọrụ/achịkwa: Ebe enwere mkpughe nke nwere ike ịkpata site n'aka ndị maara ikike nke ikpughe, N'ozuzu, oke ikpughe ọrụ/achịkwa. na-adabara ọnọdụ ndị mmadụ na-ekpughe n'ihi ọrụ ha, bụ ndị emeworo ka ha mara nke ọma ikike nke ikpughe ma nwee ike ịchịkwa ihe ngosi ha. Ụdị mkpughe a dịkwa na ya ma ọ bụrụ na ekpughere ya bụ nke na-adịru nwa oge n'ihi ngafe na mberede site na ebe ebe ọkwa ọkwa nwere ike ịdị elu karịa ọnụ ọgụgụ ndị mmadụ n'ozuzu / oke a na-achịkwaghị achịkwa, mana onye ahụ ekpughere na-ama nke ọma maka ike ikpughe ma nwee ike. na-achịkwa mkpughe ya site n'ịhapụ ebe ahụ ma ọ bụ n'ụzọ ọzọ kwesịrị ekwesị. | ||
SAR ule chaatị
Nkwekọrịta ihe enyemaka ịnụ ihe (HAC) Nke a bụ asambodo na ekwentị mkpanaaka dijitalụ agaghị egbochi AIDS ntị dị nso tupu nkwurịta okwu, ya bụ, iji nwalee ndakọrịta elektrọn nke ekwentị mkpanaaka na AIDS anụ, nke kewara ụzọ atọ: RF, T- eriri igwe na ule njikwa olu. Anyị kwesịrị ịnwale ma nyochaa ụkpụrụ atọ, uru mbụ bụ njupụta magnetik nke akara ngosi (mgbama usoro) na etiti etiti nke ụda ugboro ugboro, uru nke abụọ bụ nzaghachi ugboro ugboro nke mgbaàmà ebumnobi n'elu dum ọdịyo. bandwit ugboro, na uru nke atọ bụ ọdịiche dị n'etiti ike ndọta nke akara ngosi (mgbama usoro) na mgbama n'amaghị ama (mgbama nnyonye anya). Ụkpụrụ ntụaka nke HAC bụ ANSI C63.19 (Ụzọ ọkọlọtọ mba maka ịlele ndakọrịta nke ngwa nzikọrịta ikuku na anụ AIDS na United States), dịka nke onye ọrụ si akọwa ndakọrịta nke ụfọdụ ụdị enyemaka ntị na mkpanaka. ekwentị site na ọkwa mgbochi nnyonye anya nke enyemaka ntị yana ọkwa mgbama ekwentị mkpanaaka kwekọrọ.
A na-eme usoro ule niile site na ibu ụzọ tụọ ike ndọta n'ime eriri ugboro ọdịyo bara uru maka ihe enyemaka ntị T-coil. Nzọụkwụ nke abụọ na-atụ akụkụ oghere magnetik nke mgbama ikuku iji chọpụta mmetụta nke akara ngosi n'ime ụda ugboro ugboro, dị ka ngosipụta nke ngwaọrụ nkwurịta okwu ikuku na ụzọ batrị ugbu a. Nnwale HAC chọrọ ka njedebe ekwentị mkpanaaka nwalere bụ M3 (a na-ekewa nsonaazụ ule na M1 ~ M4). Na mgbakwunye na HAC, T-coil (nnwale ọdịyo) ga-achọrịrị oke na T3 (a na-ekewa nsonaazụ ule na T1 ruo T4).
Otu ọkwa nnyonye anya ọdịyo RFWD RF na nkeji logarithmic
| Nkeji mgbasa ozi | Oke 960MHz maka mpụta ikuku E-ubi | > Oke 960MHz maka ikuku e-ubi |
| M1 | 50 ruo 55 dB (V/m) | 40 ruo 45 dB (V/m) |
| M2 | 45 ruo 50 dB (V/m) | 35 ruo 40 dB (V/m) |
| M3 | 40 ruo 45 dB (V/m) | 30 ruo 35 dB (V/m) |
| M4 | <40dB (V/m) | <30 dB (V/m) |
| Otu | Mpempe ekwentị WD àgwà mgbama [(mkpọma + mkpọtụ) - ka - oke mkpọtụ na decibels] |
| Otu T1 | 0 dB ruo 10 dB |
| Otu T2 | 10 dB ruo 20 dB |
| Nkeji T3 | 20 dB ruo 30 dB |
| Otu T4 | > 30dB |
Chaatị ule RF na T-coil
Site na ijikọta nka nke ụlọ nyocha BTF anyị na ọganihu na ekwentị mkpanaaka na teknụzụ mbadamba, ndị na-emepụta nwere ike ịmepụta ngwaọrụ na-enye ọ bụghị nanị na-enye ahụmahụ ọrụ na-enweghị ntụpọ kamakwa na-agbaso ụkpụrụ nchekwa niile. Mmekọrịta dị n'etiti ụlọ nyocha BTF na onye nrụpụta na-ahụ na a nwalere ngwaọrụ ahụ maka nnabata SAR, RF, T-Coil na njikwa olu.
Oge nzipu: Nov-02-2023
