Isingeniso seTmteck Angle Beam Transducers
Ukuhlolwa kwe-Angle beam
Indlela ye-angle-beam (Shear Wave) isetshenziselwa ukuhlola ishidi, ipuleti, ipayipi nama-welds. Ubekwa ngepulasitiki phakathi kwento yokuhlola ne-transducer nefilimu ye-couplant phakathi kwe-transducer nesigaxa. Isigaxa sepulasitiki sivumela igagasi lomsindo ukungena entweni yokuhlola engeli. I-sound-beam ibuye ibonakale emuva ku-transducer njengasekuhlolweni okuqondile.
Ukuhlolwa kwemisebe ye-Angle 2
Imvamisa ukuhlolwa kogongolo oluqondile ngeke kuthole isici. Isibonelo, uma isici sime mpo futhi sincane ngokwanele, ngeke sibonise umsindo owanele emuva ku-transducer ukwazisa umhloli ukuthi ikhona. Ezimweni ezinjengalezi, enye indlela yokuhlolwa kwe-ultrasound kufanele isetshenziswe. Enye indlela yokuhlolwa kwe-ultrasound ukuhlola i-angle beam. Ukuhlolwa kwe-Angle beam kusebenzisa izehlakalo ezingezinye kuka-90 degrees. Ekuhlolweni kokuxhumana, i-angled plastic block iyindawo phakathi kwe-transducer nento yokwakha i-angle oyifunayo. Ukuhlolwa kwe-angle ugongolo ezinhlelweni zokucwiliswa, ipulasitiki ayidingeki ngoba i-transducer ingamane iboshwe emanzini.
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Uma i-angle yesigameko ishintshwa yaba enye into ngaphandle kwama-degree angama-90, kwenziwa amagagasi e-longitudinal nohlobo lwesibili lomsindo womsindo. Lawa amanye amagagasi abizwa ngokuthi amagagasi okushefa. Ngenxa yokuthi igagasi lingene nge-engeli, aluhambi lonke ngqo kulokho okubhaliwe. Ama-molecule entweni yokuhlola ayakhanga komunye nomunye ngoba okuqinile kunama-bond aqinile wamangqamuzana. Ama-molecule athwala umsindo adonswa kuma-molecule awo azungezile. Ngenxa ye-engela, lawo ma-molecule athwala umsindo ayadonswa ngokuheha amandla esiqondisweni esiqonde ngqo ekuqondeni kwegagasi. Lokhu kukhiqiza amagagasi okusika, noma amagagasi ama-molecule awo ahamba ngendlela ebheke ngqo ekuqondeni kwegagasi.
Ukuhlolwa kwegongolo le-Angle kanye noshintsho ekoneni lesigameko nakho kudala ezinye izinkinga. Khumbula ukuthi lapho igagasi lishaya ingaphezulu le-engeli, lizokhishwa, noma ligobeke, lapho lingena kule ndlela entsha. Ngakho-ke, amagagasi e-shear kanye namagagasi e-longitudinal azokhishwa entweni yokuhlola. Inani le-refraction lincike esivinini somsindo kulezi zindlela ezimbili lapho igagasi lihamba khona. Njengoba ijubane lamagagasi we-shear lihamba kancane kunejubane lamagagasi e-longitudinal, ama-engeli awo wokubuyisa azohluka. Ngokusebenzisa umthetho kaSnell, singakwazi ukubala i-engeli yokubuyisa uma sazi ijubane lomsindo ezintweni zethu.
Kukhethwa i-engeli ukuqinisekisa ukuthi kutholakala i-echo emaphutheni asolwayo. Lokhu kuvame ukuba ngamaphutha amabi kakhulu, isib. Ama-engeli okuphenya asetshenziswa kakhulu ubukhulu bensimbi ahlukile ngale ndlela elandelayo:
a. I-70 Wedge - 0.250 kuya ku-0.750 amayintshi ngobukhulu
b. I-60 Wedge - 0.500 kuye ku-2.00 inches ngobukhulu
c. I-45 Wedge - 1.500 nangaphezulu ngogqinsi
Ama-probe aqhutshwa kwamanye ama-engeli kufanele asetshenziswe, kuya ngesikhundla sephutha kulokho okuhlolwa, kanye namacala akhethekile ezigabeni ezincane. Imvamisa kufanele ibe phansi ngokwanele ukuze kugwenywe ukuncipha ngokweqile.
Ama-Angle Beam Transducers nama-wedge ajwayele ukusetshenziselwa ukwethula igagasi le-shear elikhishiwe kokuqukethwe kokuhlola. Indlela yomsindo we-angled ivumela ugongolo lomsindo ukuba lungene luvela ohlangothini, ngaleyo ndlela luthuthukise ukutholwa kwamaphutha ezindaweni nasezindaweni ezizungezile ezinezintambo.
Isikhathi Iposi: Sep-26-2021