A Monte Carlo experiment for measuring acoustic properties of macroalgae living tissue | Zendy

Jean-Pierre Hermand | Zendy; Jo Randall | Zendy

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A Monte Carlo experiment for measuring acoustic properties of macroalgae living tissue

Author(s) -

Jean-Pierre Hermand,

Jo Randall

Publication year - 2015

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.619

H-Index - 187

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.4916794

Subject(s) - thallus , speed of sound , seawater , ultrasonic sensor , volume (thermodynamics) , monte carlo method , environmental science , materials science , acoustics , botany , physics , geology , biology , oceanography , mathematics , thermodynamics , statistics

A methodology is developed to measure ex situ ultrasonic velocity of submerged aquatic vegetation tissue, in particular, macroalgae, in a nondestructive and efficient manner. An entire thallus is submerged in artificial seawater-filled tank through which many ultrasonic pulse-echo measurements are recorded while thallus parts are randomly displaced. Average sound speed of tissue is estimated from normal fit to extracted travel times given measured total volume fraction of tissue and travel time in water alone. For species Ecklonia radiata the resulting values for sound speed 1573.4 ± 4.8 m s(-1) and adiabatic compressibility 3.134 ×10(-10) ± 1.34 ×10(-11) Pa(-1) at 18 °C agree with more laborious and destructive methods.

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