Esi sixhobo sinentloko yokulinganisa ye-laser ultrasonic isixhobo sokulinganisa, i-laser ekhuthazayo, i-laser irradiating kunye ne-convergence optical element esetyenziselwa ukuqokelela izibane ezibonakaliswe kumphezulu wombhobho ukuya kwintloko yokulinganisa.Ipharamitha ebalulekileyo yobunzima bokuveliswa kombhobho bubunzima bodonga.Ngoko ke kuyimfuneko ukulinganisa kunye nokubeka iliso kwiparameter yayo ngexesha lokuvelisa umbhobho.Kufuneka wenze uphando lwe-laser ultrasonic ukulinganisa ubukhulu bodonga lombhobho wensimbi odibeneyo .Yindlela yokulinganisa esekelwe kumgaqo we-pulse echo ukuqinisekisa ubuninzi bodonga ngokulinganisa ixesha lokusasazeka kwe-ultrasonic pulse.

Esi sixhobo sisebenzisa i-laser ekhuthazayo eya kukhokelela kwi-pulse ye-ultrasonic ebusweni bombhobho.Kwaye ke le pulse ye-ultrasonic isasazeka kumbhobho kwaye ibonakalisa eludongeni lwangaphakathi.Kwaye sinokulinganisa umqondiso obuyela eludongeni olungaphandle ngokubeka i-laser irradiating ejolise kumphezulu wombhobho.Lo mqondiso ubonakalisiweyo uya kuthunyelwa kwi-interferometer apho kukho i-homocentric interferometer.Isixhobo sokuhlalutya kunye nenkqubo siqinisekisa ukuba umehluko wexesha phakathi kweempawu ze-ultrasonic ze-input kwaye zibonakalise iimpawu ze-ultrasonic ukufumanisa ixabiso lodonga phantsi kweemeko zokwazi isantya sokusasaza kumbhobho.

Ukuze wenze esi sixhobo silinganise ubukhulu bodonga lweumbhobho wentsimbi odityanisiweyongokuchanekileyo nangokuzinzileyo, kuyimfuneko ukwenza isixhobo sokulinganisa i-laser ultrasonic sisebenze phantsi kweyona meko ingcono yokusebenza.Kwaye imfuneko yayo kukuba isibane sokukhanya esithunyelwe ngelaser ekhuthazayo kunye nentsimbi yokukhanya ethunyelwe kwi-laser irradiating kufuneka idibane kwindawo eyabelweyo.Nangona kunjalo, okokuqala, kufuneka sizame konke okusemandleni ethu ukugcina ngokuchanekileyo umgama phakathi kombhobho wokulinganisa kunye nentloko yokulinganisa.Ukongezelela, izenzo ziye zabonisa ukuba kunzima ukuqinisekisa eyona meko isebenzayo phantsi kwemeko engqongileyo engaphezulu, ngakumbi kwinkqubo yokuqengqeleka, akunakwenzeka ukulungisa isixhobo sokulinganisa i-laser ultrasonic.Kwaye oku kunokwenziwa kuphela ngolawulo oluqhelekileyo lwesixhobo.Ngaphandle koko, umgama phakathi kwentloko yokulinganisa kunye nomphezulu wombhobho wesixhobo sokulinganisa i-laser ultrasonic kufuneka ugcinwe kwixabiso elifanelekileyo lesalathisi ukuqinisekisa ukuba ukukhanya kwe-laser ebonakalisiweyo ukusuka kumphezulu wombhobho kunokufaka ngcono idivaysi yokulinganisa.

Cwangcisa ubuncinci izibonelelo zokukhanya ezimbini ezithumela ukukhanya okufanayo kunye nokumiliselwa kwiindawo ezahlukeneyo zentloko yomlinganiselo.Kwaye ubuncinci izibonelelo ezimbini zokukhanya zinokugxothwa kwintloko yokulinganisa ngolu hlobo kwaye zilungiswe ulwalathiso.Okukuthi xa kukho umgama wangaphambili wombhobho kunye nentloko yokulinganisa, izibane ezidibanisayo ezivela kwezi zixhobo zimbini zokukhanya ziya kuwela kumphezulu wombhobho wensimbi we-LSAW.Kungakhathaliseki ukuba ubude kangakanani umgama phakathi kwentloko kunye nomphezulu, unokulinganisa ngokulula kunye nendlela engentla.Ke, inokuqinisekiswa ukuba isixhobo sokulinganisa i-laser ultrasonic sinemeko engcono yokusebenza phantsi kwemeko erhabaxa, ephucula imveliso kunye nomgangatho wombhobho wensimbi odityanisiweyo.