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微机械桥型压控振荡器 被引量:1

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摘要 设计制作了一种由电热激励/压敏电桥拾振的二氧化硅/硅双层微桥谐振器及其闭环谐振电路实现的高Q值微机械压控振荡器.通过调节压敏电桥的桥压,改变桥的平均温升和轴向应变,可调节压控振荡器的中心频率.理论计算和实验结果表明,输出信号的频率与桥压的平方具有良好的线性关系.对所测试的器件,其线性度为0.16%,振荡频率可调节范围与振荡频率的比值为17.15%.
出处 《中国科学(E辑)》 CSCD 北大核心 2004年第1期14-19,共6页 Science in China(Series E)
基金 国家自然科学基金(批准号:60036016 50077016) 教育部博士点基金(批准号:98069828)资助项目
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