共查询到18条相似文献,搜索用时 122 毫秒
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通过研究鼻道结构对生物嗅觉的影响,构造了装有传感器阵列的电子鼻流道和控制装置,实现了嗅觉区域气体流量和气味分子浓度的主动控制,提高了嗅觉灵敏度;根据生物嗅觉系统的模糊性质在嗅觉感知中所起的关键作用,构建了更接近生物嗅觉的模糊优化神经网络算法,使电子鼻系统更具仿生特性,实现了电子鼻动态检测的目标;实验结果表明,该电子鼻不仅具有辨识的快速性,还提高了自适应辨识精度,从而能够准确做出预报。 相似文献
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基于电子鼻的气敏传感器及其阵列 总被引:3,自引:0,他引:3
电子鼻是模拟动物的嗅觉系统设计研制的一种智能电子仪器,是利用气敏传感器阵列的响应图谱来识别气味的电子系统。本文从应用的角度出发,对电子鼻系统中常用气敏传感器的工作原理、适用范围和优、缺点进行了比较,指出了电子鼻系统中选择气敏传感器及其阵列的一些注意事项,为电子鼻特别是便携式电子鼻的研制提供参考。 相似文献
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电子鼻技术新进展及其应用前景 总被引:11,自引:1,他引:10
详细阐述了电子鼻技术的基本原理 ,介绍了它的研究历史、应用现状与发展趋势 ,指出了这门信息新技术实现过程中需要解决的问题 ,重点展望了它在香料香精、卷烟、酒等轻工业品香气质量定性评定中的广阔应用前景 相似文献
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Object recognition: A new application for smelling robots 总被引:1,自引:0,他引:1
Olfaction is a challenging new sensing modality for intelligent systems. With the emergence of electronic noses, it is now possible to detect and recognize a range of different odours for a variety of applications. In this work, we introduce a new application where electronic olfaction is used in cooperation with other types of sensors on a mobile robot in order to acquire the odour property of objects. We examine the problem of deciding when, how and where the electronic nose (e-nose) should be activated by planning for active perception and we consider the problem of integrating the information provided by the e-nose with both prior information and information from other sensors (e.g., vision). Experiments performed on a mobile robot equipped with an e-nose are presented. 相似文献
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An electronic nose system to diagnose illness 总被引:14,自引:0,他引:14
Recently, medical diagnostics has emerged to be a promising application area for electronic noses (e-nose). In this paper, we review work carried out at Warwick University on the use of an e-nose to diagnose illness. Specifically, we have applied an e-nose to the identification of pathogens from cultures and diagnosing illness from breath samples. These initial results suggest that an e-nose will be able to assist in the diagnosis of diseases in the near future. 相似文献
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The Lorentzian model is a powerful feature extraction technique for electronic noses. In a previous work, it was applied to single-peak transient signals and was shown to achieve lower classification error rate than other feature extraction techniques. Here, we generalize the Lorentzian model by showing how to apply it to transient signals that are comprised of more than a single peak. The model is based on a fast and robust fitting of the measured signals to a physically meaningful analytic curve. We show that this model fits equally well to sensors of different technologies and embeddings, suggesting its applicability to a diverse repertoire of sensors and analytic devices. 相似文献