Izinto ezichaphazela ukungaqiniseki komlinganiselo -ISO 2360

Umlinganiselo wobunzima bokugquma
UMGANGATHO WAMAZWE
ISO 2360

5 Izinto ezichaphazela ukungaqiniseki komlinganiselo

5.1 Ubukhulu bokugquma

Ukungaqiniseki komlinganiselo kuyinxalenye yendlela. Kwiingubo ezincinci, oku kungaqiniseki kokulinganisa (ngokwemigaqo epheleleyo) kusisigxina, kuxhomekeke kwi-coat thickness, kunye nomlinganiselo omnye, ubuncinane be-0,5μm. Kwiingubo ezityebileyo kune-25 μm, ukungaqiniseki kuba kuhambelana nobukhulu kwaye malunga neqhezu elingaguqukiyo lobo bukhulu.

Ukulinganisa ubukhulu be-5 μm okanye ngaphantsi, umyinge wesixhenxeral imilinganiselo iya kuthatyathwa.

Akunakwenzeka ukufumana umlinganiselo wokungaqiniseki ochazwe kwiGatya lesi-8 xa ulinganisa iileya ezingaphantsi kwe-3 μm ubukhulu.

5.2 Iimpawu zombane zezinto ezisisiseko

Ukulinganisa usebenzisa izixhobo zangoku ze-eddy zinokuchaphazeleka ngokuqhutywa kombane wesiseko sesinyithi, esingumsebenzi wokubunjwa kunye nokushisa kwempahla. Impembelelo ye-conductivity yombane kwimilinganiselo iyahluka kakhulu kunye nokwenziwa kunye nodidi lwesixhobo.

5.3 Isiseko sobukhulu bentsimbi

Kwisixhobo ngasinye kukho isiseko esibalulekileyo sobungqingqwa besinyithi ngaphezu koko imilinganiselo ayichatshazelwa kukwanda kobukhulu. Ekubeni obu bukhulu buxhomekeke kuzo zombini ii-eddy zangoku zesizukulwana senkqubo yeprobe kunye neempawu zombane zesiseko semathiriyeli ixabiso layo kufuneka limiselwe ngokomfuniselo, ngaphandle kokuba kuchazwe ngenye indlela ngumvelisi.

Ingcaciso yesizukulwana sangoku se-Eddy kunye nokubalwa komlinganiselo ofunekayo wesiseko semateria ubukhulu, i-dmin, inikwe kwiSihlomelo A.

Nangona kunjalo, ngokungabikho kwalo naluphi na olunye ulwazi, ubuncinci besiseko obufunekayo ubukhulu besixhobo, i-dmin, bunokuqikelelwa ukusuka kwi-equation:dmin = 2,5 δ0 apho u-δ0 bubunzulu bokungena obusemgangathweni besiseko semathiriyeli (jonga A.1).

5.4 Iziphumo zomda

Izixhobo zangoku ze-Eddy zinokuba novakalelo kutshintsho olukhawulezileyo kumphezulu wecontour yomzekelo wovavanyo. Ngoko ke imilinganiselo eyenziwe kufutshane kakhulu kumphetho okanye kwikona ayinakusebenza ngaphandle kokuba isixhobo silungelelaniswe ngokukodwa loo milinganiselo (jonga ku-6.2.4 kunye nesiHlomelo B).

QAPHELA Xa kuthelekiswa nendlela ye-ISO 21968 ebuthathaka, izixhobo zangoku ze-eddy ezinokuthi zichaphazeleke kakhulu zichaphazeleka kakhulu.

5.5 Igophe lomphezulu

Imilinganiselo ichatshazelwa kukugoba komzekelo wovavanyo. Le mpembelelo ye-curvature iyahluka kakhulu kunye nokwenziwa kunye nohlobo lwesixhobo kunye ne-probe, kodwa ihlala icaca ngakumbi njengoko i-radius ye-curvature iyancipha. Imilinganiselo eyenziwe kwiisampulu zovavanyo olugobileyo ayinakusebenza, ke ngoko, ngaphandle kokuba isixhobo silungelelaniswe ngokuthe ngqo ukugoba komphezulu ekuthethwa ngawo, okanye iprobe ekhethekileyo, ebuyekeza impembelelo yomphezulu, isetyenzisiwe.

5.6 Uburhabaxa bomphezulu

Imilinganiselo iphenjelelwa yimbonakalo yomhlaba yesiseko sezinto kunye nokwaleka. Imiphezulu erhabaxa inokubangela zombini iimpazamo ezicwangcisiweyo nezingacwangciswanga. Iimpazamo ezingalindelekanga zinokuncitshiswa ngokwenza imilinganiselo emininzi, umlinganiselo ngamnye usenziwa kwindawo eyahlukileyo, emva koko ubala umndilili wexabiso lolo luhlu lwemilinganiselo.

Ukuba izinto ezisisiseko zirhabaxa, i-zero yesixhobo iya kujongwa kwisixhenxeral iindawo kwisampulu eqhelekileyo yezinto ezingagqunywanga, ezirhabaxa, ezisisiseko. Ukuba akukho mathiriyeli yesiseko engagqunywanga ikhoyo, isambatho somzekelo wovavanyo siya kuhluthwa, ubuncinci ngaphezu kwendawo yayo, ngesisombululo sekhemikhali esingahlaseli imathiriyeli yesiseko.

QAPHELA Xa kuthelekiswa nendlela ye-ISO 21968 ebuthathaka, umlinganiselo wangoku we-edidi we-amplitude unokuchatshazelwa kakhulu buburhabaxa bezinto ezisisiseko.

5.7 Isiphumo sokususwa

Ukuba i-probe ayifakwanga ngokuthe ngqo kwi-coating, i-gap phakathi kwe-probe kunye ne-coating ("i-lift-off") ichaphazela umlinganiselo wobunzima bokugubungela. Ubukhulu obulinganisiweyo buyakulingana nobukhulu bokugquma kunye nesithuba esongezelelweyo "sokunyusa". Ukuphakanyiswa kunokuveliswa ngokungeyonjongo, umz., ngobukho bamasuntswana angaphandle phakathi kweprobe kunye nokwaleka.Incam yeprobe iya kuhlolwa rhoqo rhoqo. ukwenzela ucoceko.

5.8 Uxinzelelo lovavanyo

Uxinzelelo apho i-probe isetyenziswe kwi-specimen yokuvavanya ichaphazela ukufundwa kwesixhobo kwaye ngoko ke kuya kwenziwa rhoqo.Le mpembelelo yoxinzelelo ibonakala ngakumbi xa iingubo zithambile. Uninzi lwezixhobo ezifumanekayo kurhwebo zibonelelwa ngeprobes zoxinzelelo rhoqo.

5.9 Phanda ukuthambeka

Ngaphandle kokuba kuyalelwe ngolunye uhlobo ngumvelisi, umphengululi uya kusetyenziswa ngokuthe ngqo kumphezulu wokugquma njengoko ukuthambekela kophando kude ne-perpendicular kunokubangela iimpazamo zomlinganiselo.Ithuba lokuthambeka kwenzeka ngempazamo linokuncitshiswa ngoyilo lweprobe okanye ngokusetyenziswa kweprobe- ukubamba ijigi.

5.10 Iziphumo zobushushu

Ngenxa yokuba utshintsho lweqondo lobushushu luchaphazela iimpawu zeprobe, kufuneka lusetyenziswe phantsi kweemeko zobushushu obuphantse bufana nalezo zisetyenziselwa ukulinganisa ngaphandle kokuba iprobe inembuyekezo yobushushu eyakhelweyo.

5.11 Ukwaleka okuphakathi

Ubukho bengubo ephakathi bunokuchaphazela umlinganiso wobunzima bokugquma ukuba iimpawu zombane zaloo ngubo ephakathi zihluke kwi-coating okanye isiseko sezinto. Ukuba ngaba kukho umahluko, imilinganiselo iya kuthi, ukongeza, ichatshazelwe bubunzima obuphakathi obungaphantsi kwe-dmin. Ukuba ubukhulu bukhulu kune-dmin ke i-coat ephakathi, ukuba i-non-magnetic, inokuphathwa njengesiseko sezinto.Kuye kwafunyaniswa ukuba ezinye izixhobo ezine-probe systems ezisebenza ngeefrikhwensi ezininzi zinokulinganisa zombini iingubo eziphezulu kunye neziphakathi.

Umlinganiselo wobunzima bokugquma
UMGANGATHO WAMAZWE
ISO 2360