| 宽温度范围声表面波标签温度补偿的研究 |
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| 引用本文： | 王晓伟,韩韬.宽温度范围声表面波标签温度补偿的研究[J].压电与声光,2014,36(5):709-712. |
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| 作者姓名： | 王晓伟 韩韬 |
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| 作者单位： | （上海交通大学 电子信息与电气工程学院,上海 200240） |
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| 基金项目： | 国家自然科学基金资助项目(11174205)；教育部新世纪人才计划基金资助项目（NCET 12 0357）；博士点基金资助项目（SRFDP 20120073110021） |
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| 摘 要： | 大容量延迟线型声表面波(SAW)标签除需利用回波时延,还需利用回波的载波相位进行编码,而回波载波相位会受温度的影响而发生变化。在实际应用中必须对回波相位进行温度补偿。因此,该文提出了一种基于3根标准温度反射栅的设计及实际温度补偿过程中温度补偿系数的确定方法,并讨论了相位测量误差对温度补偿适用范围及温度补偿精度的影响。
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| 关 键 词： | 声表面波(SAW) 射频识别 延迟线 测量误差 温度补偿 |
Research on Temperature Compensation of SAW Label with Wide Temperature Scope |
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| WANG Xiaowei and HAN Tao.Research on Temperature Compensation of SAW Label with Wide Temperature Scope[J].Piezoelectrics & Acoustooptics,2014,36(5):709-712. |
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| Authors: | WANG Xiaowei and HAN Tao |
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| Affiliation: | (School of Electronic Information and Electrical Engineering,Shanghai Jiaotong University,Shanghai 200240,China) |
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| Abstract: | The delay line surface acoustic wave label with large capacity based on coding scheme of TOPPS needs to encode using the phase of carrier, but the phase of carrier will be influenced by the change of temperature. In the practical application phase temperature compensation to phase of carrier must be carried out. In order to solve this problem, this paper proposes a design method based on three standard temperature reflecting gratings and the method to determine the coefficient of temperature compensation in actual temperature compensation process.The influence of phase measuring error on the applicable scope and accuracy of temperature compensation is also discussed. |
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| Keywords: | SAW RFID delay line measuring error temperature compensation |
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