{"title":"Behavioral modeling and simulation of a chemical sensor with its microelectronics front-end interface","authors":"Fabio Cenni, S. Mir, L. Rufer","doi":"10.1109/IWASI.2009.5184776","DOIUrl":null,"url":null,"abstract":"A surface acoustic wave (SAW) device is used in this work as the sensing element for a chemical sensor that will be embedded in a wireless sensor node. The SAW device is intended to detect the concentration of gaseous mercury in the environment. Two behavioral models of the SAW device have been studied. The microelectronics front-end architecture has been designed at transistor level in a 0.35µm CMOS technology. The SAW device is embedded in a phase-locked loop (PLL) that converts the change of concentration of gaseous mercury into a shift of the loop frequency. Finally, the simulation of the overall sensor has been carried out considering a model of the SAW device described in the Hardware Description Language Verilog-A.","PeriodicalId":246540,"journal":{"name":"2009 3rd International Workshop on Advances in sensors and Interfaces","volume":"159 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2009-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2009 3rd International Workshop on Advances in sensors and Interfaces","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IWASI.2009.5184776","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4
Abstract
A surface acoustic wave (SAW) device is used in this work as the sensing element for a chemical sensor that will be embedded in a wireless sensor node. The SAW device is intended to detect the concentration of gaseous mercury in the environment. Two behavioral models of the SAW device have been studied. The microelectronics front-end architecture has been designed at transistor level in a 0.35µm CMOS technology. The SAW device is embedded in a phase-locked loop (PLL) that converts the change of concentration of gaseous mercury into a shift of the loop frequency. Finally, the simulation of the overall sensor has been carried out considering a model of the SAW device described in the Hardware Description Language Verilog-A.
在这项工作中,表面声波(SAW)装置被用作化学传感器的传感元件,该传感器将嵌入无线传感器节点中。SAW装置用于检测环境中气态汞的浓度。研究了声表面波器件的两种行为模型。微电子前端架构采用0.35 μ m CMOS技术在晶体管级设计。SAW器件嵌入锁相环(PLL)中,将气态汞浓度的变化转换为环路频率的变化。最后,利用硬件描述语言Verilog-A描述的声呐器件模型对整个传感器进行了仿真。