A.E. Isaev1, Ghen Yi2, A.N. Matveev1, Jia Guanghui2, B.I. Khatamtaev1, Wang Shiquan2, N.G. Shcherblyuk1 1FSUE “VNIIFTRI”, Mendeleevo, Moscow region, Russia2HAARI, Hangzhou, Fuyang Zhejiang, Chinaisaev@vniiftri.ru Al’manac of Modern Metrology № 4 (32) 2022, pages 151–168 Abstract. The described COOMET project 786/RU-a/19: bilateral experimental comparisons of the calculated phase calibrations of hydrophones in the field at a … Continue reading COOMET 786/RU-a/19: results of pilot comparisons of hydrophones amplitude-phase free-field calibrations in the frequency range from 10 to 500 kHz