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基于AD5933的磁致伸缩材料共振频率检测系统 被引量:3
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作者 高爽 崔朗福 +3 位作者 程鹏 郭星 邓黎明 桑胜波 《工矿自动化》 北大核心 2015年第5期18-22,共5页
根据阻抗测量法设计了一种基于AD5933的磁致伸缩材料共振频率检测系统,详细介绍了该系统硬件电路及软件设计。该系统采用基于AD5933的阻抗测量模块、基于MSP430F169的单片机处理模块、12864液晶显示模块以及供电模块完成了磁致伸缩材料... 根据阻抗测量法设计了一种基于AD5933的磁致伸缩材料共振频率检测系统,详细介绍了该系统硬件电路及软件设计。该系统采用基于AD5933的阻抗测量模块、基于MSP430F169的单片机处理模块、12864液晶显示模块以及供电模块完成了磁致伸缩材料共振频率的数据采集、处理、存储及图谱显示。测试结果表明,该系统具有测量误差小、抗干扰性强、实时性高的特点,检测误差低至7Hz。 展开更多
关键词 磁弹性传感器 磁致伸缩材料 共振频率检测 阻抗法 AD5933
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Opto-Chemical Ring Resonator Sensor Based on Morphology Dependent Resonances for Detecting Gas Odorant
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作者 A. Rahman 《Journal of Energy and Power Engineering》 2011年第4期317-323,共7页
A novel Opto-Chemical Ring Resonator (OCRR) has been presented for detecting gas odorant. The sensor is designed based on Morphology Dependent Resonances (MDR) which follows Maxwell's electromagnetic equations. I... A novel Opto-Chemical Ring Resonator (OCRR) has been presented for detecting gas odorant. The sensor is designed based on Morphology Dependent Resonances (MDR) which follows Maxwell's electromagnetic equations. In this paper, we have presented a novel technique to integrate chemical science and optical technology by using OCRR. Optical resonances of electromagnetic wave propagations in dielectric micro-ring resonator have been developed based on asymptotic approach. Parametric studies based on developed asymptotic expression have been presented to determine the resonance frequency at particular chemical composition. Finite element simulation is used to predict the performance of the sensor and found encouraging results for odorant sensing. Parametric studies show that present study will help to develop novel OCRR sensors tbr micro/nano technology and biomedical applications. 展开更多
关键词 Optical sensor ring resonator WGM odorant sensor optical fiber.
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