Raihi. 1. Tikanga Tirotiro Hanganga Whakarewa Kowiri tira: Huinga Matariki 2D Takirua i te Aratau TRL.

Kua whanake haere ngā waehere, ngā paerewa, me ngā tikanga kia taea ai te whakamahi i te whakamātautau ultrasonic ā-wāhanga (PAUT) hei utu mō te RT hei whakamātautau i ngā whakarewa austenitic. I whakamahia whānuitia tuatahitia i roto i ngā tipu hiko karihi tata ki te 15 tau ki muri, kua horapa te whakamahinga o ngā huihuinga pūoko ā-rua (2D) ki te hinu me te hau me ētahi atu ahumahi e hiahiatia ana te tirotiro tere, pono, me te haumaru o ngā whakarewa austenitic whakaitiiti teitei.
Kei roto i ngā taputapu kawe hou ngā pūmanawa kaha kua hangaia ki roto, e āhei ai koe ki te whakarite, ki te whakatinana me te whakamārama i ngā matawai matawai matihiko 2D me te kore e kawemai i ngā kōnae ture arotahi i hangaia ki ngā tātaitai o waho, ki ngā pūnaha mana mamao rānei mā te whakamahi i ngā pūmanawa matatau. Pūmanawa mō te PC.
I ēnei rā, ko ngā hangarau tirotiro e ahu mai ana i ngā taputapu whakawhiti 2D he tino pai ake te kaha ki te kite i ngā hapa porowhita me ngā hapa tuaka i roto i te maitai kore waikura me ngā whakarewa rerekē. Ka taea e te whirihoranga matarua rua 2D paerewa te kapi i te rahinga tirotiro o ngā whakarewa maitai kore waikura, ā, ka taea te kite i ngā hapa papatahi me ngā hapa papatahi.
Ko ngā tikanga tirotiro ultrasound e whakamahi ana i ngā rarangi takirua o ngā matihiko rua-ahu e whakanohoia ana ki runga i ngā wāhanga āhua poro ka taea te whakakapi, ā, e ōrite ana ō rātou āhua ki te diameter o waho o te wāhanga e whakaarohia ana. Whakamahia ngā auau iti – 1.5 MHz mō ngā whakarewa rerekē me ētahi atu rauemi whakaiti whakaiti, 2 MHz ki te 3.5 MHz mō ngā papa me ngā whakarewa maitai kore waikura kua whakairohia ōrite.
Ko te whirihoranga T/R takirua (tuku/whiwhi) e tuku ana i ēnei painga: kāore he "rohe mate" tata-mata, ka whakakorea ngā "orooro wairua" i puta mai i ngā whakaata ā-roto i roto i te porowhita, ā, i te mutunga ka pai ake te aro me te ōwehenga tohu-ki-haruru (ōwehenga tohu/haruru). te ahua haruru) ) nā te piko o ngā hihi T me R.
Me titiro tātou ki te tikanga PA UT mō te whakahaere i te hanganga o ngā whakarewa maitai kore waikura austenitic.
I te wā e whakahaerehia ana te mana whakahaere whakaputa, kaua ko te RT, me kapi te mana whakahaere i te rōrahi o te whakarewa me te matotoru katoa o te pakitara o te rohe e pāngia ana e te wera. I te nuinga o te wā, ka noho tonu te taupoki whakarewa. I roto i ngā whakarewa maitai waro, e taunakihia ana kia whakamahia ngā ngaru kutikuti hei whakakorikori i te rōrahi whakahaeretia i ngā taha e rua, ko te haurua ngaru whakamutunga ia e whakamahia ana hei tiki whakaata ā-whatumanawa mai i ngā hapa i runga i te anga whakarewa.
I ngā auau iti iho, ka taea te whakamahi i tētahi tikanga ngaru kutikuti rite tonu hei whakamātautau i te piko tata o ngā whakarewa maitai kore waikura, engari kāore e pono mō te whakamātautau mā roto i ngā rauemi whakarewa austenitic. Hei tāpiri, mō ngā whakarewa CRA e kiia nei, he paninga koranu ātete-waikura kei te diameter o roto o te paipa maitai waro, ā, kāore e taea te whakamahi pai i te haurua whakamutunga o te peke waea o te kurupae whakawhiti.
Me titiro tātou ki ngā tikanga kimi tauira mā te whakamahi i tētahi taputapu kawe UT me tētahi pūmanawa, e whakaaturia ana i te Pikitia 1.
He pūwhakawhiti ara 2D takirua e whakaputa ana i ngā hihi whakahurihuri ngaru-P 30 ki te 85 nekehanga ka taea te whakamahi mō te kapi katoa o te rōrahi. Mō ngā matotoru pakitara mai i te 15 ki te 50 mm, e kiia ana he pai ngā auau mai i te 1.5 ki te 2.25 MHz, i runga i te whakaitiiti o te papa.
Mā te arotau i te koki poro me te whirihoranga o ngā huānga tirotiro rarangi, ka taea te whakaputa pai i te whānuitanga o ngā matawai koki whakaata me te kore e pāngia e ngā taha taha (Pikitia 2). Ka whakaitihia te tapuwae o te pūnga poro i te papa o te urunga mai, ka taea ai te whakanoho i te pūwāhi putanga hihi kia tata rawa atu ki te hononga whakarewa.
I aromatawaitia te mahi a te huinga huinga takirua paerewa 2.25 MHz 10 x 3 i te aratau TRL i runga i te whakarewa pereti maitai kore waikura 304 he 25 mm te matotoru o te pakitara. He pari āhua-V noa iho ngā tauira whakamātautau me te āhua o te mata "i te wā i whakarewahia ai", ā, kei roto ngā hapa whakarewa tūturu me te tuhi pai i te taha o te whakarewa.
Raihi. 3. Ngā raraunga huinga wāhanga whakakotahi mō te huinga huinga takirua (TRL) 10 x 3 2.25 MHz paerewa i runga i te whakarewa pereti maitai kore waikura 304.
Kei te pikitia 3 ngā whakaahua o ngā raraunga PAR kua whakakotahihia mō ngā koki whakaata katoa (mai i te 30° ki te 85° LW) i te roanga katoa o te whakarewa. I mahia te kohikohinga raraunga i te taumata whakanui iti hei karo i te mākū o ngā hapa whakaata nui. Mā te taumira raraunga 16-bit ka taea te whakarite i ngā tautuhinga whakanui ngohengohe e tika ana mō ngā momo hapa rerekē. Ka taea te whakahaere i te whakamaoritanga raraunga mā te whakanoho tika i te kati whakaata.
Kei te Pikitia 4 te ahua o tētahi hapa kotahi i hangaia mā te whakamahi i te huinga raraunga kotahi kua hanumi. Tirohia te hua:
Mena kāore koe e hiahia ki te tango i te mono i mua i te tirotiro, ka taea te whakamahi i tētahi atu tikanga tirotiro hei kite i ngā kapiti tuaka (whakapae) i roto i ngā whakarewa paipa: ka taea te whakamahi i tētahi tirotiro rarangi kotahi i roto i te aratau pāorooro pulse hei "whakatītaha" i te mono whakarewa Hihi oro mai i raro I te mea ka horapa te hihi oro i roto i te papa, ka taea e ngā ngaru kutikuti te kite pono i ngā hapa i te taha tata o te whakarewa.
Ko te mea tino pai, me tirotirohia ngā whakarewa i ngā ahunga kurupae e whā (Pikitia 5) ā, me tirotirohia kia rua ngā poro rite mai i ngā ahunga rerekē, ki te taha matau me te taha maui. I runga i te auau me te rahi o ngā huānga takitahi o te rarangi, ka taea te whakapai ake i te huihuinga poro kia whiwhi ai i ngā koki whakaata mai i te 40° ki te 65° e pā ana ki te ahunga o te tuaka matawai. Neke atu i te 50 ngā hihi e taka ana ki ia pūtau rapu. Ka taea e tētahi taputapu US PA matatau me tētahi tātaitai kua hangaia ki roto te mahi ngāwari ki te whakamāramatanga o ngā huinga ture arotahi me ngā rerekētanga rerekē, e whakaaturia ana i te Pikitia 6.
I te nuinga o te wā, ka whakamahia he raupapa tirotiro e rua ngā rārangi hei kapi katoa i te nui o te tirotiro. Ka whakatauhia ngā tūranga tuaka o ngā rārangi matawai e rua mai i te matotoru o te paipa me te whānui o te pito whakarewa. Ka oma te rārangi matawai tuatahi kia tata rawa atu ki te taha o te whakarewa, ka whakaatu i ngā hapa kei te pūtake o te whakarewa, ā, ka whakaoti te rārangi matawai tuarua i te kapi o te HAZ. Ka arotauhia te horahanga turanga o te pūnga tirotiro kia tata rawa atu te pūwāhi putanga hihi ki te matimati o te karauna me te kore he whakaata nui o roto i te poro.
Kua kitea he tino whai hua tēnei tikanga tirotiro mō te kimi i ngā hapa tuaka he. Kei te pikitia 7 tētahi whakaahua whakarārangi ā-wāhanga i tangohia ki runga i tētahi kapiti tuaka i roto i tētahi whakarewa maitai kore waikura: i kitea ngā hapa i ngā koki rerekē o te piko, ā, i kitea he SNR teitei.
Pikitia 7: Ngā raraunga huinga wāhanga mō ngā kapiti tuaka i roto i te whakarewa maitai kore waikura (ngā koki me ngā piko SW rerekē): te whakaata tikanga (maui) me te whakaata porowhita (matau).
Kei te aro tonu ngā hua o te PA UT matatau hei huarahi kē atu ki te whakaahua ira-X i roto i te hinu me te hau, te whakaputa hiko, te hanga me ētahi atu ahumahi e whakawhirinaki ana ki te tirotiro pono o ngā whakarewa austenitic. Waihoki, ko ngā taputapu PA UT kua whakauruhia katoatia, te pūmanawa kaha me ngā probe 2D array kei te whakapai ake i te utu me te whai hua o ēnei tirotiro.
Ko Guy Maes te kaiwhakahaere hokohoko a Zetec mō UT. Neke atu i te 25 tau o te wheako ki te whakawhanake me te whakatinana i ngā tikanga ultrasound matatau, te aromatawai pūkenga me te whakawhanake pūmanawa. Mō ētahi atu pārongo, waea mai ki (425) 974-2700, toro atu rānei ki www.zetec.com.
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Hono mai ki a mātou ki te ako me pēhea e taea ai e ngā otinga ine 3D te tuku i te mana whakahaere nui ake ki ngā kaihoahoa me ngā kaihanga motuhake kia tutuki ai ā rātou hiahia ine, me te whakanui ake i ō rātou kaha mā te 75%. I roto i te mākete tere o ēnei rā, me kaha tō pakihi ki te whakamahi i ngā hangarau hou hei whakakore i te uaua o te aunoatanga, te whakapai ake i te rere o te mahi, me te whakapiki ake i te hua.
Tukuna he Tono Tono (RFP) ki te kaihoko o tāu i whiriwhiri ai, ka pāwhiri i te pātene e whakaatu ana i ō hiahia.