TA_kogumik 2018-2019

MARTIN LINTS
MARTIN LINTS
Joonis 6: Hilistunud ajalise ümberpöördega tuvastatud mittelineaarne efekt sõltuvalt prao pikkusest. Prao
laius normaaloludes on 0. Kasutatud ultraheli lainepikkuse suurusjärk on 1,5 mm.
et kasutatud signaalitöötlusmeetod sobib hästi süsinikplastides (ja ka teistes komposiitides)
pragude ja teiste lainepikkusest väiksemate defektide tuvastamiseks. Kuna antud meetod
ka- sutab materjali sisepeegeldusi fookuse tekitamiseks, mis suurendab signaali-müra suhet,
on see eriti sobilik komposiitide analüüsimiseks, kus tavapäraselt igasugune mikrostruktuur
pi- gem takistaks ultrahelispektroskoopiat.
VIITED
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