搜索结果: 1-9 共查到“工学 E-nose”相关记录9条 . 查询时间(0.068 秒)
苦荞麦（Fagopyrum tataricum，TB），是一种营养丰富、有益健康、具有独特香气和生物功能特性的健康食品。TB富含类黄酮、酚酸、槲皮素、脂质、维生素和矿物质，具有降血糖、降血脂、抗炎和抗氧化特性等生物活性，常用于茶、面条、面包、饮料和醋等产品。烘烤是TB食品的常用处理方法，可延长保质期并减少与芦丁相关的苦味，前人以烘烤过程中抗氧化特性研究为主，对其特征风味变化的研究相对较少。食品风味...
Detection of adulteration in freshly squeezed orange juice by electronic nose and infrared spectroscopy
chemometrics discrimination spectral analysis
2016/7/6
The use of electronic nose and attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR) as rapid tools for detection of orange juice adulteration has been preliminarily investig...
Development and Application of a New Low Cost Electronic Nose for the Ripeness Monitoring of Banana using Computational Techniques (PCA, LDA, SIMCA, and SVM)
Low Cost Electronic Nose Computational Techniques
2014/11/28
Potential application of a metal oxide semiconductor based electronic nose (e-nose) as a non-destructive instrument
for monitoring the change in volatile production of banana during the ripening pro...
Discriminatory power assessment of the sensor array of an electronic nose system for the detection of non alcoholic beer aging
electronic nose chemical change storage beer aroma food PCA
2014/2/25
Many chemical changes in beer aroma occur during storage (aging), and monitoring these changes could give guidelines to the brewers how to manage and control the brewing process to obtain the final pr...
为了简单、快捷、准确地检测牛肉新鲜度，建立了电子鼻检测系统。根据牛肉产生的气味和传感器实验，合理地选用了气敏传感器阵列。为提高电子鼻传感器灵敏度，对购置的传感器进行了改进。利用生物嗅觉的研究成果，开发出仿生嗅觉鼻道结构。为了提高电子鼻系统小样本训练的识别率，提出了用支持向量机(SVM)算法识别牛肉新鲜度的方法。应用电子鼻系统对储藏7d不同新鲜度的牛肉进行了识别实验，识别率达到99.25%。结果表明...
基于ARM9的电子鼻系统设计与应用（Development and Application of an Electronic Nose System Based on ARM9）
嵌入式电子鼻 气敏传感器 模式识别
2009/11/3
提出了一种基于嵌入式电子鼻的设计方案，主要包括传感器阵列、模数转换和微处理器3大模块。采用Figaro公司TGS813、TGS825、TGS880 3个气敏传感器组成的传感器阵列采集样品信号；利用MAXIM公司的MAX1270芯片进行模数转换；CPU采用SAMSUNG公司的S3C2410微处理器，并在其上移植了WINCE操作系统。软件设计对采集信号进行对数拟合，采用引进BP神经网络对拟合后的曲线参...
电子鼻检测鲢鱼新鲜度的试验参数优化（Optimization of Experiment Parameters for Using Electronic Nose to Evaluate Freshness of Silver Carp）
鲢鱼 新鲜度 电子鼻
2009/5/22
以虚拟仪器和仿生嗅觉技术为基础，用储藏在4℃的鲢鱼为样品，用自行研制的四气体传感阵列的电子鼻测量系统研究了采样方式、采样时间和样品质量对新鲜度测量的影响，采用PCA（主成分）对试验结果进行分析。试验结果表明，改进的自由扩散法可以代替传统顶空生成法的采样方式，简化了测量系统；确定最佳测量条件为样品质量60g、自由扩散法采样和连续采集5min。
Development of a helicopter-borne magnetic survey system in use of a nose boom magnetic sensor and its passive compensation for aircraft's magnetic field
stinger magnetic compensation 3-axis fluxgate aeromagnetic
2009/3/5
A helicopter-borne magnetic survey system was developed in use of a nose boom magnetic sensor, which enables safe and practical operation of low-altitude high-resolution survey even in mountainous reg...
无封装条件下牛奶存放质量电子鼻分析（Storage Quality Analysis of Milk in Non-encapsulation Condition Based on Electronic Nose）
牛奶 无封装 电子鼻 质量分析
2010/4/1
选用气敏传感器阵列动态响应中不同时刻的响应值来表征无封装牛奶测试样本，借助于主成分分析（PCA）、Fisher判别分析（FDA）研究了牛奶开封后不同存放天数的质量变化情况，并给出了最优表征区间。以最优表征区间响应值的平均值为样本的表征值，进行了牛奶质量的PCA、FDA分析。结果表明：无论是利用不同时刻的响应值或是平均值来表征样本，PCA、FDA均能鉴别出牛奶开封后的质量变化情况。因此，用电子鼻分析...