固体板中超声驻波场的高阶光弹条纹
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摘要
利用动态光弹法观测了超声波在固体板内多次反射形成的驻波。通过相干叠加增大声波应力,使得动态光弹实验中偏振光的相位变化大于一个周期,从而观测到固体内超声波由行波转化为驻波的过程,并对高阶干涉条纹反映的驻波场特性进行了讨论。通过对声波应力进行定量测量,评估了固体板中超声驻波的激发效率。本文的工作为利用动态光弹法研究透明固体中的高强度声波提供了一种可行的方法。
The standing wave which is formed by ultrasonic wave reflected back and forth in a solid plate was observed by dynamic photo-elastic technique. The ultrasonic stress is amplified by constructive interference, which results in the phase difference of polarized light in dynamic photo-elastic experiment greater than one cycle. The evolution process from traveling wave to standing wave was observed, and then the properties of standing waves reflected by higher order photo-elastic fringes were discussed. By measuring the ultrasonic stress quantitatively, the excitation efficiency of standing wave was evaluated. This work provides a feasible method to study high intensity ultrasound in transparent solids.
The standing wave which is formed by ultrasonic wave reflected back and forth in a solid plate was observed by dynamic photo-elastic technique. The ultrasonic stress is amplified by constructive interference, which results in the phase difference of polarized light in dynamic photo-elastic experiment greater than one cycle. The evolution process from traveling wave to standing wave was observed, and then the properties of standing waves reflected by higher order photo-elastic fringes were discussed. By measuring the ultrasonic stress quantitatively, the excitation efficiency of standing wave was evaluated. This work provides a feasible method to study high intensity ultrasound in transparent solids.
引文
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2刘克.大振幅驻波的实验研究.声学学报,1995;20(4):256-263
3刘克.大振幅驻波的实验研究Ⅱ:驻波场谐波的饱和.声学学报,1995;20(5):393-398
4刘克.大振幅驻波的实验研究Ⅲ:三次谐波的共振.声学学报,1995;20(6):466-468
5应崇福,张守玉,沈建中.超声在固体中的散射.北京:国防工业出版社,1994
6 Schmitte T,Orth T,Kersting T.Visualization of phasedarray sound fields and flaw interaction using the photoelastic effect.AIP Conference Proceedings,AIP,2012;1430(1):1976-1983
7金士杰,安志武,廉国选,张旭,王小民.表面裂纹对掠入射垂直偏振横波散射的动态光弹实验分析.声学学报,2015;40(2):240—246
8王小民,廉国选,安志武.裂纹尖端超声散射场及动应力集中的动态光弹观测.声学学报,2016;41(5):549-554
9 Hu Zhongtao,An Zhiwu,Lian Guoxuan.Wang Xiaomin.Propagation properties of backward Lamb waves in plate investigated by dynamic photoelastic technique.Chinese Physics Letters,2017;11:011
10 Eason T J,Bond L J,Lozev M G et al.Ultrasonic thickness structural health monitoring photoelastic visualization and measurement accuracy for internal pipe corrosion.Proceedings of SPIE,2015
11诸国桢,孙耀,傅德永.用动态光弹法记录的超声脉冲沿固固界面的传播过程.应用声学,2004;23(2):7-10
12邹诚,孙振国,蔡栋等.矩形超声换能器空间脉冲响应计算方法研究.仪器仪表学报,2015;36(12):2641-2649
13安志武,胡中韬,廉国选等.固体介质中超声应力场的定量测量.应用声学,2018;37(1):83-87
2刘克.大振幅驻波的实验研究.声学学报,1995;20(4):256-263
3刘克.大振幅驻波的实验研究Ⅱ:驻波场谐波的饱和.声学学报,1995;20(5):393-398
4刘克.大振幅驻波的实验研究Ⅲ:三次谐波的共振.声学学报,1995;20(6):466-468
5应崇福,张守玉,沈建中.超声在固体中的散射.北京:国防工业出版社,1994
6 Schmitte T,Orth T,Kersting T.Visualization of phasedarray sound fields and flaw interaction using the photoelastic effect.AIP Conference Proceedings,AIP,2012;1430(1):1976-1983
7金士杰,安志武,廉国选,张旭,王小民.表面裂纹对掠入射垂直偏振横波散射的动态光弹实验分析.声学学报,2015;40(2):240—246
8王小民,廉国选,安志武.裂纹尖端超声散射场及动应力集中的动态光弹观测.声学学报,2016;41(5):549-554
9 Hu Zhongtao,An Zhiwu,Lian Guoxuan.Wang Xiaomin.Propagation properties of backward Lamb waves in plate investigated by dynamic photoelastic technique.Chinese Physics Letters,2017;11:011
10 Eason T J,Bond L J,Lozev M G et al.Ultrasonic thickness structural health monitoring photoelastic visualization and measurement accuracy for internal pipe corrosion.Proceedings of SPIE,2015
11诸国桢,孙耀,傅德永.用动态光弹法记录的超声脉冲沿固固界面的传播过程.应用声学,2004;23(2):7-10
12邹诚,孙振国,蔡栋等.矩形超声换能器空间脉冲响应计算方法研究.仪器仪表学报,2015;36(12):2641-2649
13安志武,胡中韬,廉国选等.固体介质中超声应力场的定量测量.应用声学,2018;37(1):83-87