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9. ULTRAZVUK I HIDROAKUSTIKA - Fer

9. ULTRAZVUK I HIDROAKUSTIKA - Fer

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Elektroakustika 2007.<br />

Veza između kuteva i brzine širenja ultrazvučnih valova<br />

prema Snellovom zakonu je:<br />

sin<br />

sin<br />

α<br />

β<br />

=<br />

c<br />

c<br />

1<br />

2<br />

odnosno za longitudinalni i<br />

transverzalni (reflektirani i<br />

preneseni) val:<br />

cL1<br />

cL2<br />

cT2<br />

cT1<br />

= = =<br />

sin α sin β sin γ sinδ<br />

sredstvo 1<br />

sredstvo 2<br />

IL<br />

R T<br />

Sl. <strong>9.</strong>5. Snellov zakon<br />

α<br />

δ<br />

γ<br />

α<br />

β<br />

R L<br />

TL<br />

TT

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