当交流电压施加于压电陶瓷元件时,由于压电效应,元件会发生机械形变。这种形变会带动附着在陶瓷上的金属膜片振动,从而在特定频率下产生声波。
诱因 → 失效模式 → 工程缓解
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A piezoelectric sounder uses the piezoelectric effect where an applied voltage causes a piezoelectric ceramic element to vibrate, which then moves a metal diaphragm to produce audible sound waves.
Piezoelectric sounders are used as alarms, alerts, and status indicators in computers, servers, optical drives, networking equipment, and other electronic devices where reliable, low-power audio signaling is required.
Piezoelectric sounders typically use piezoelectric ceramic for vibration, a metal diaphragm for sound projection, plastic housing for protection, and corrosion-resistant electrical contacts for long-term reliability in industrial environments.
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