| 一种高频换能器的声场推算方法 |
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| 引用本文： | 熊久鹏,王月兵,赵鹏. 一种高频换能器的声场推算方法[J]. 计量学报, 2018, 39(6): 884-887. DOI: 10.3969/j.issn.1000-1158.2018.06.25 |
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| 作者姓名： | 熊久鹏 王月兵 赵鹏 |
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| 作者单位： | 中国计量大学 计量测试工程学院, 浙江 杭州 310018 |
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| 基金项目： | 国家自然科学基金（11474259） |
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| 摘 要： | 以二维空间Rayleigh积分和二维平面声压构建技术作为理论基础,提出了一种高频换能器的声场推算方法。为验证该方法的正确性,对由4个压电元件所构成、频率1.8 MHz的矩形活塞换能器的声场进行实验测试和推算,以获得距换能器不同距离处的声压分布。在50 cm处,实测结果推算的最大误差为8.25%。在保证准确性的前提下,该方法有效提高了高频换能器的声场测量效率。
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| 关 键 词： | 计量学 声场推算方法 Rayleigh积分 高频换能器 |
| 收稿时间： | 2017-08-18 |
A Calculating Method of the Acoustic Field about High Frequency Transducers |
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| XIONG Jiu-peng,WANG Yue-bing,ZHAO Peng. A Calculating Method of the Acoustic Field about High Frequency Transducers[J]. Acta Metrologica Sinica, 2018, 39(6): 884-887. DOI: 10.3969/j.issn.1000-1158.2018.06.25 |
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| Authors: | XIONG Jiu-peng WANG Yue-bing ZHAO Peng |
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| Affiliation: | College of Metrology & Measurement Engineering, China Jiliang University, Hangzhou, Zhejiang 310018, China |
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| Abstract: | Based on the twovdimensional space Rayleigh integral and the two-dimensional planar sound pressure construction technique, a sound field calculation method of a high frequency transducer was proposed. In order to verify the correctness of the method, the acoustic field of a rectangular piston transducer with 4 piezoelectric components and 1.8 MHz was tested and calculated to obtain the sound pressure distribution at different distances. At 50 cm, the maximum error of the calculation is 8.25%. On the premise of guaranteeing the accuracy, the method effectively improves the sound field measurement efficiency of high frequency transducers. |
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| Keywords: | metrology sound field calculation method Rayleigh integral high frequency transducers |
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