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| 超声宽量程微量气体浓度检测的仿真研究 | |
| 引用本文： | 张晓花,朱昌平,单鸣雷,王瑞华,梁行健.超声宽量程微量气体浓度检测的仿真研究[J].声学技术,2008,27(1):40-43. |
| 作者姓名： | 张晓花 朱昌平 单鸣雷 王瑞华 梁行健 |
| 作者单位： | 1. 河海大学计信学院,江苏常州,213022;河海大学电气工程学院,南京,210098 2. 河海大学计信学院,江苏常州,213022;河海大学水文水资源与水利工程科学国家重点实验室,南京,210098 3. 河海大学计信学院,江苏常州,213022 |
| 基金项目： | 国家自然科学基金 , 江苏省高校高新技术产业发展项目 , 常州市新北区科技项目 |
| 摘 要： | 基于超声技术和复杂可编程逻辑器件（CPLD）实现对两路同频超声传输过程中不仅是半个周期以内的相位差，而且大于半个周期乃至多个半周期的相位差的检测，仿真实现了微量气体浓度宽量程范围的检测，为基于超声技术的微量气体浓度检测的量程拓展提供了’技术借鉴。 |
| 关 键 词： | 超声技术 CPLD 跨半周期 气体浓度 |
| 文章编号： | 1000-3630（2008）-01-0040-04 |
| 收稿时间： | 2006-08-30 |
| 修稿时间： | 2006-10-19 |
Simulation research on wide-range micro-concentration gas detection by ultrasonic |
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| ZHANG Xiao-hu,ZHU Chang-ping,SHAN Ming-lei,WANG Rui-hua and LIANG Xing-jian.Simulation research on wide-range micro-concentration gas detection by ultrasonic[J].Technical Acoustics,2008,27(1):40-43. | |
| Authors: | ZHANG Xiao-hu ZHU Chang-ping SHAN Ming-lei WANG Rui-hua and LIANG Xing-jian |
| Affiliation: | ZHANG Xiao-hua, ZHU Chang-ping, SHAN Ming-lei, WANG Rui-hua, LIANG Xing-jian (1. Department of Computer ＆ Information Engineering, Hohai University, Changzhou, 213022; China 2. State Key Laboratory of Hydrology-water Resources And Hydraulic Engineering, Hohai University, Nanjing, 210098; 3. School of Electrical Engineering, Hohai University, Nanjing, 210098, China) |
| Abstract: | Based on ultrasonic technology and complex programmable logic device （CPLD）, the phase difference detection of less than or more than half a cycle, and even spanning more semi-cycles, is carried out in the transmission process of two channels of ultrasonic. Also the wide-range micro-concentration gas test is achieved by simulation. This research provides a technical reference for the measuring range expansion of micro-concentration gas detection based on ultrasonic technology. |
| Keywords: | Ultrasonic technology CPLD Cross-half-cycle Gas concentration |
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