| 超声波专题设计性实验 |
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| 引用本文： | 冯军勤,吴福根,钟会林.超声波专题设计性实验[J].物理实验,2012,32(6):30-32,39. |
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| 作者姓名： | 冯军勤 吴福根 钟会林 |
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| 作者单位： | 广东工业大学实验教学部,广东广州,510006 |
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| 摘 要： | 在测量超声波在空气中传播速度实验基础上,开设了超声波专题设计性实验,分别增加了测量压电换能器的共振频率、超声波在空气中的损耗系数、超声波在水中的传播速度等实验内容,丰富了大学物理实验教学内容,拓展了学生视野.
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| 关 键 词： | 超声波 共振频率 损耗系数 最小二乘法 |
Designing for ultrasonic experiment |
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| FENG Jun-qin
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WU Fu-gen
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ZHONG Hui-lin.Designing for ultrasonic experiment[J].Physics Experimentation,2012,32(6):30-32,39. |
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| Authors: | FENG Jun-qin WU Fu-gen ZHONG Hui-lin |
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| Institution: | (Department of the experiment,Guangdong University of Technology,Guangzhou,510006,China) |
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| Abstract: | Based on the experiment of ultrasonic propagation velocity in air,a special design was carried out for the measurement of the resonant frequency of the piezoelectric transducer,the ultrasonic attenuation coefficient in the air and the ultrasonic propagation velocity in water.This special design enriched the content of physics experiment teaching,and expanded the students’ horizons. |
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| Keywords: | ultrasonic resonant frequency attenuation coefficient least square method |
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