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9. ULTRAZVUK I HIDROAKUSTIKA - Fer

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U ovisnosti o udaljenosti od površine pretvarača<br />

razlikuje se blisko (Fresnelovo) i daleko<br />

(Fraunhoferovo) polje (Sl. <strong>9.</strong>2).<br />

Elektroakustika 2007.<br />

Sl. <strong>9.</strong>2. Raspodjela intenziteta u ovisnosti o udaljenosti od čela<br />

pretvarača

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