Fabrication and Underwater Testing of a Vector Hydrophone Comprising a Triaxial Piezoelectric Accelerometer and Spherical Hydrophone. - Taehoun Roh; Hong Goo Yeo; Cheeyoung Joh; Yongrae Roh; Kyungseop Kim; Hee-seon Seo; Hongsoo Choi (Sensors, 2022)