Piezoelectric ceramic Hemisphere Electrode direction: thickness vibration YUHAI company developed various piezo hemisphere and focal bowl sizes for HIFU transducer, sonar transducer, hydrophone etc, this element is fabricated from more than 10 available piezoelectric material formulations according to high power, sensitivity, stability needs in cryogenic temperatures as also in high temperatures and extreme pressure applications. Applications include · Sonar transducers · Hydrophones · HIFU medical and industrial · Underwater communications Features · Choice of metallisation (Silver, Nickel, Gold and others on request) · …