电子学报2016，Vol.44Issue(5)：1162-1167,6.DOI:10.3969/j.issn.0372-2112.2016.05.021
一种用于图书档案库的小波加权式声表面波温度传感器的关键问题研究
Study of a Wavelet weighting Surface Acoustic Wave Temperature Sensor Applied in Library and Archives
摘要
Abstract
We propose to apply the surface acoustic wave (SAW)temperature sensor in the temperature control system of library and archive.When the temperature of library and archive changes,the output frequency of the SAW temperature sen-sor is linear with the temperature,thus the temperature can be measured.We also present the trace weighted function of the in-put transducer,and the influence of transducer electrode-numbers on the SAW power as two key problems of the SAW temper-ature sensor.The solutions to these problems are achieved in this study.The wavelet function is used as the trace weighted function of the input transducer,so that the sidelobes for the frequency characteristic curve of the SAW temperature sensor are suppressed.The more the transducer electrode number are,the weaker the bulk acoustic wave (BAW)is (i.e.,the more the transducer electrode-numbers are,the stronger the SAW is).As long as transducer electrode numbers are more than 40,the ex-cited bulk acoustic wave (BAW)can be ignored,but the excited SAW is very strong.The design,fabrication and experiment for the SAW temperature sensor have been studied in detail.关键词
图书档案库/声表面波温度传感器/旁瓣/换能器的指条数Key words
library and archive/surface acoustic wave (SAW)temperature sensor/sidelobes/transducer electrode num-bers分类
信息技术与安全科学引用本文复制引用
张静端..一种用于图书档案库的小波加权式声表面波温度传感器的关键问题研究[J].电子学报,2016,44(5):1162-1167,6.基金项目
国家自然科学基金（No．61274078）；教育部博士点基金（No．20120075110006）；上海市教育委员会科研创新项目 （）
