I-Eddy yangoku yokufunyaniswa kwesiphene yindlela yokufumanisa isiphene esebenzisa umgaqo wokungeniswa kwe-electromagnetic ukukhangela iziphene zomhlaba zamacandelo kunye nezixhobo zetsimbi. Indlela yokufumanisa i-coil yokufumanisa kunye nokuhlelwa kwayo kunye nesakhiwo sekhoyili yokufumanisa.

Izinto eziluncedo zokufunyaniswa kwesiphene se-eddy yangoku kwiityhubhu ezingenamthungo zi: iziphumo zokufumanisa isiphene zinokukhutshwa ngokuthe ngqo ngemiqondiso yombane, elungele ukufunyanwa ngokuzenzekelayo; ngenxa yendlela yokungaqhagamshelwa, isantya sokubona isiphene sikhawuleza kakhulu; ifanelekile ukukhangela isiphene kwiziphene zomhlaba. Ukungalungi kukuba: iziphene kwiindawo ezinzulu phantsi kombhobho wensimbi ongenamthungo azikwazi ukufunyanwa; kulula ukwenza imiqondiso emdaka; kunzima ukwahlula ngokuthe ngqo uhlobo lweziphene kwiimpawu ezibonisiweyo ezifunyenwe ngokubhaqa.
Umsebenzi wokukhangela isiphene setyhubhu yensimbi engenamthungo ibandakanya amanyathelo amaninzi afana nokucocwa komphezulu wesiqwenga sovavanyo, ukuzinza komtshini wesiphako, ukukhethwa kweempawu zokufumanisa impazamo, kunye novavanyo lokufumanisa impazamo.

Isalathiso se-eddy current kwi-specimen ye-tube engenamthungo ichasene nolwalathiso lwangoku lwekhoyili ephambili (okanye i-coil excitation). I-alternating field magnetic eveliswa yi-eddy yangoku utshintsho kunye nexesha, kwaye xa idlula kwi-coil ephambili, ibangela ukutshintshwa kwangoku kwikhoyili. Ngenxa yokuba isalathiso salo sangoku sichasene ne-eddy yangoku, isiphumo sisalathiso esifana nesokuqala esichulumancisayo kwikhoyili yokuqala. Oku kuthetha ukuba i-current in the primary coil iyanda ngenxa yokusabela kwe-eddy currents. Ukuba i-eddy yangoku iyatshintsha, le nxalenye eyongezelelweyo iyatshintsha. Ngokuchasene noko, ngokulinganisa utshintsho lwangoku, utshintsho lwe-eddy lwangoku lunokulinganiswa, ukuze ufumane ulwazi malunga neziphene zetyhubhu yensimbi engenamthungo.

Ukongeza, ukutshintshiselana kwangoku kutshintsha isalathiso sangoku kwinqanaba elithile ngokuhamba kwexesha. Kukho umahluko othile kwisigaba se-excitation current kunye ne-reaction current, kwaye lo mahluko wesigaba uyatshintsha kunye nokumila kwesiqwenga sovavanyo, ngoko ke olu tshintsho lwesigaba lunokusetyenziswa njengeqhekeza lolwazi ukubona imeko ye-seamless. isiqwenga sovavanyo ityhubhu yentsimbi. Ngoko ke, xa isiqwenga sovavanyo okanye i-coil ishukunyiswa ngesantya esithile, uhlobo, imilo kunye nobukhulu beziphene zemibhobho yentsimbi ziyakwazi ukwaziwa ngokuhambelana ne-waveform yenguqu ye-eddy yangoku. I-alternating current eyenziwa yi-oscillator idluliselwe kwi-coil, kwaye i-alternating field magnetic isetyenziswe kwisiqwenga sokuvavanya. I-eddy yangoku yesiqwenga sovavanyo ifunyenwe yikhoyili kwaye ithunyelwe kwisiphaluka sebhulorho njengemveliso ye-AC.