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Flexural composite oscillators for the measurement of anelastic andelastic properties of solids at frequencies of 1 to 10 kHz

机译:挠曲复合振荡器,用于测量频率为1至10 kHz的固体的弹性和弹性

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摘要

Longitudinal composite oscillators for measuring internalnfriction, piezoelectric modulus, and strain modulation effects arenusually limited to a frequency range of 30 to 200 kHz. If the samencrystals are vibrated in flexure, a longitudinal strain can benintroduced with the resonance frequency below 3 kHz while at the samentime keeping the inherent high Q of the composite system. This paperndevelops the theory for the strain amplitude and damping for thenflexural composite oscillator made up of two quartz crystals plusnspecimen and, if appropriate, spacers. This high Q technique ofnvibrating in flexure has applications for strain modulation and dampingnexperiments
机译:用于测量内部摩擦,压电模量和应变调制效应的纵向复合振荡器通常限于30至200 kHz的频率范围。如果相同的晶体弯曲振动,则共振频率低于3 kHz时可引入纵向应变,同时保持复合材料系统固有的高Q值。本文提出了由两个石英晶体加上标本和适当的垫片组成的挠曲复合振荡器的应变振幅和阻尼的理论。这种在弯曲中振动的高Q技术可用于应变调制和阻尼实验

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