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radio > usg > Flashcards

usg Flashcards

1
Q

Qual a velocidade do som no usg?

A

1540m/s (partes moles)

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2
Q

Qual a frequencia audivel de ondas sonoras?

A

20-20.000Hz

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3
Q

Quais interacoes do feixe sonoro com a materia?

A

Reflexao (depende da diferenca de impedancia dos meios)

Refracao

Absorção

Espalhamento

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4
Q

Como melhorar resolucao axial?

A

Aumentando a frequencia

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5
Q

Como melhorar resolucao lateral?

A

Ajuste de foco e frequencia

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radio (7 decks)

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