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| 基于Hamming函数变迹加权SAW温度传感器设计 | |
| 引用本文： | 卢小荣,刘文,王磊. 基于Hamming函数变迹加权SAW温度传感器设计[J]. 电子元件与材料, 2011, 30(11): 38-41 |
| 作者姓名： | 卢小荣 刘文 王磊 |
| 作者单位： | 1. 武汉烽火富华电气有限责任公司,湖北武汉,430074 2. 武汉烽火富华电气有限责任公司,湖北武汉430074 ;华中科技大学武汉光电国家实验室,湖北武汉430074 |
| 基金项目： | 国家创新基金资助项目(No.11C26224212716) |
| 摘 要： | 选取特定切向的压电晶体,用Hamming函数对叉指换能器的电极长度进行变迹加权,制作了一个谐振频率为431.5 MHz的声表面波温度传感器,研究了Hamming加权函数对叉指换能器频率响应旁瓣的抑制效果,并进行了温度-频率特性测试实验,研究了传感器的灵敏度、精度等性能.仿真和测试结果表明:基于Hamming函数变迹加权... |
| 关 键 词： | 压电晶体 叉指换能器 变迹加权 声表面波 旁瓣抑制 |
Design of apodized weighting SAW temperature sensor based on Hamming function |
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| LU Xiaorong,LIU Wen,WANG Lei. Design of apodized weighting SAW temperature sensor based on Hamming function[J]. Electronic Components & Materials, 2011, 30(11): 38-41 | |
| Authors: | LU Xiaorong LIU Wen WANG Lei |
| Affiliation: | LU Xiaorong1,LIU Wen1,2,WANG Lei1(1.Wuhan Fiberhome Fuhua electric Co.,Ltd,Wuhan 430074,China,2.Wuhan National Laboratory for Optoelectronics,Huazhong University of Science &Technology,China) |
| Abstract: | A 431.5 MHz surface acoustic wave(SAW) temperature sensor was preprared with selecting a special tangential piezoelectric crystal,and processing the electrode length of the interdigital transducer(IDT) by apodized weighting using Hamming function.The impact of Hamming function on restraining the frequency response sidelobe of IDT was researched.The temperature-frequency characteristic test was done in order to study the performance of the prepared SAW temperature sensor such as the sensitivity,accuracy and ... |
| Keywords: | piezoelectric crystals interdigital transducer(IDT) apodized weighting surface acoustic wave(SAW) restraining sidelobe |
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