简述压电陶瓷的基本原理和应用。Describe the basic principles and applications of piezoelectric ceramics.
简述压电陶瓷的基本原理和应用。Describe the basic principles and applications of piezoelectric ceramics.
发布时间：2025-02-16 22:31:40
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答案：答:压电性是指材料受到外界施加的压力后,晶格发生转变,对称性降低,正负电荷重心不重合,自身也会产生电荷的累积,即由压力产生电荷的性质。压电陶瓷的应用非常广泛,例如蜂鸣器、安全报警器、超声换能器等。Piezoelectric material refers to material that have accumulation of charge when subject to externally pressure, and the symmetry of the lattice decreased, gravity center of positive and negative charge do not coincide. The piezoelectric ceramic is widely used in many fields, such as buzzer, security alarm, ultrasonic transducers, etc.
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