Hydro acoustic transducer's calibration by the reciprocity

7th Brazilian Congress on Metrology

Miqueleti, S.A.^1 ; Martins, C.A.O.^2 ; Ribeiro, C.E.P.^2 ; Costa-Felix, R.P.B.^2

Laboratório de Ultrassom (Labus), Diretoria de Metrologia Científica (Dimci), Instituto Nacional de Metrologia, Qualidade e Tecnologia (Inmetro), Brazil^1

Laboratório de Instrumentação Oceanográfica(LIOc), Universidade Federal Do Rio de Janeiro (UFRJ), Brazil^2

关键词: Calibration techniques;    Frequency measurements;    Spherical waves;    Standard uncertainty;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/575/1/012007/pdf
DOI  :  10.1088/1742-6596/575/1/012007

来源: IOP

【 摘 要 】

This paper presents a calibration technique of underwater acoustic transducers, hydroacoustics, known as three-transducer spherical-wave reciprocity and performs an assessment of the type B standard uncertainty of the results obtained for the frequency measurement used.