Pre-inflation pressure compensation bending disc transducer and manufacturing method thereof

The invention relates to a pre-inflation pressure compensation bending disc transducer and a manufacturing method thereof.The pre-inflation pressure compensation bending disc transducer comprises a transducer body, the transducer body is internally provided with a closed air cavity formed by welding two parallel metal supporting plates, and the outer sides of the two metal supporting plates are each provided with a metal prestress plate; two stacked piezoelectric wafers are clamped between the corresponding metal supporting plate and the metal prestressed plate, and the metal supporting plate and the metal prestressed plate exert prestress on the piezoelectric wafers. The small-size and light-weight deepwater launching function can be achieved, and the working water depth is increased by three times under the condition that the size and weight of a conventionally-designed bent disc are not changed basically. 本发明涉及一种预充气压力补偿弯曲圆盘换能器及其制作方法，包括换能器本体，换能器本体中具有由两平行设置的金属支撑板通过焊接构成的密闭空气腔，两金属支撑板外侧还分别设有金属预应力板，对应的金属支撑板和金属预应