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| 超声波专题实验开展及其传播特性研究 | |
| 引用本文： | 李艳琴. 超声波专题实验开展及其传播特性研究[J]. 大学物理实验, 2014, 0(3): 87-90 |
| 作者姓名： | 李艳琴 |
| 作者单位： | 大连大学,辽宁大连116622 |
| 基金项目： | 大连大学2013年度教改项目（2013-126G1） |
| 摘 要： | 开设了超声波专题设计综合实验,测量得空气、水和白油中超声波传播速度,研究了同一介质中接收到的交变电压随传播距离的变化规律,空气、水和白油中超声波的损耗系数,水中超声波的损耗系数最大。使用Origin软件直线拟合,对实验结果进行分析和评价。 |
| 关 键 词： | 超声波 传播速度 损耗系数 |
The Research on Special Experiment and Spread Properties of Ultrasonic Wave |
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| LI Yan-qin. The Research on Special Experiment and Spread Properties of Ultrasonic Wave[J]. Physical Experiment of College, 2014, 0(3): 87-90 | |
| Authors: | LI Yan-qin |
| Affiliation: | LI Yan-qin ( Dalian University, Liaoning Dalian 116622) |
| Abstract: | The comprehensive experiment of ultrasonic wave is designed. The spread velocities of ultrasonic wave are measured in the air, water and white oil respectively. The peak values of the received alternating voltage weaken gradually with the increasing of spread distances and the attenuation amplitude of Ultrasonic wave in the water. The variation of alterating voltage vs spread distances received in the same medium is studied. The loss coefficients of ultrasonic wave in the air, water and white ovl also are studied, and the loss coefficient of Ultrasonic wave in the water is biggest. Linear fitting is carried out using the Origin software in order to analysize and evaluate the experimental results. |
| Keywords: | ultrasonic wave spread velocity loss coefficient |
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