I-antenna ekwazi ukudlulisa noma ukwamukela amaza kagesi (EM). Izibonelo zala maza kagesi zihlanganisa ukukhanya okuvela elangeni, kanye namaza atholwa yiselula yakho. Amehlo akho athola ama-antenna athola amaza kagesi ngemvamisa ethile. "Ubona imibala (ebomvu, eluhlaza, eluhlaza okwesibhakabhaka) kugagasi ngalinye. Okubomvu nokuluhlaza okwesibhakabhaka kumane nje kuyimvamisa ehlukene yamaza amehlo akho angayibona.
Wonke amaza kagesi asakazeka emoyeni noma emkhathini ngesivinini esifanayo. Lesi sivinini singamaRandi ayizigidi ezingu-671 ngehora (amakhilomitha ayizigidi eziyi-1 ngehora). Lesi sivinini sibizwa ngokuthi isivinini sokukhanya. Lesi sivinini sishesha ngokuphindwe kasigidi kunesivinini samaza omsindo. Isivinini sokukhanya singabhalwa ku-equation ethi "C". Sizolinganisa ubude besikhathi ngamamitha, ngemizuzwana, kanye namakhilogremu. Izilinganiso zesikhathi esizayo okufanele sizikhumbule.
Ngaphambi kokuchaza imvamisa, kumelwe sichaze ukuthi ayini amaza kagesi. Lena insimu kagesi esakazeka kude nomthombo othile (i-antenna, ilanga, umbhoshongo womsakazo, noma yini). Ukuhamba ensimini kagesi kunensimu yamagnetic ehlotshaniswa nayo. Lezi zinsimu ezimbili zakha igagasi lamandla kagesi.
Indawo yonke ivumela la maza ukuthi athathe noma yisiphi isimo. Kodwa isimo esibaluleke kakhulu yi-sine wave. Lokhu kudwetshwe kuMfanekiso 1. Amaza kagesi ayahlukahluka ngendawo nesikhathi. Izinguquko zendawo ziboniswe kuMfanekiso 1. Izinguquko zesikhathi ziboniswe kuMfanekiso 2.
isithombe 1. Igagasi le-sine lidwetshwe njengomsebenzi wesikhundla.
isithombe 2. Dala igagasi le-sine njengomsebenzi wesikhathi.
Amagagasi ayaphindaphindeka. Igagasi liphinda kanye ngomzuzwana ngesimo "sika-T". Njengoba lihlelwe njengomsebenzi esikhaleni, inani lamamitha ngemva kokuphindaphinda kwamagagasi linikezwa lapha:
Lokhu kubizwa ngokuthi ubude be-wavelength. Imvamisa (ebhalwe "F") imane nje iyinani lemijikelezo ephelele igagasi eliyiqeda ngomzuzwana owodwa (umjikelezo weminyaka engamakhulu amabili ubonakala njengomsebenzi wesikhathi esibhalwe ngo-200 Hz noma ngomzuzwana ongu-200 "hertz"). Ngokwezibalo, lena ifomula ebhalwe ngezansi.
Ukuthi umuntu uhamba ngesivinini esingakanani kuncike kusayizi wesinyathelo sakhe (ubude begagasi) obuphindaphindwe ngesivinini sezinyathelo zakhe (imvamisa). Ukuhamba kwamagagasi kuyafana ngesivinini. Ukuthi igagasi lishesha kangakanani ukujikisa ("F") okuphindaphindwe ngobukhulu bezinyathelo ezithathwa yigagasi isikhathi ngasinye ( ) esinikeza isivinini. Ifomula elandelayo kufanele ikhunjulwe:
Ngamafuphi, imvamisa iyisilinganiso sokuthi igagasi lihamba ngokushesha kangakanani. Wonke amagagasi kagesi ahamba ngesivinini esifanayo. Ngakho-ke, uma igagasi kagesi lihamba ngokushesha kunegagasi, igagasi elisheshayo kumele libe nobude besikhathi obufushane. Ububanzi besikhathi obude busho imvamisa ephansi.
Isikhathi sokuthunyelwe: Disemba-01-2023
