使用快速响应电子鼻子对不同香烟品牌进行歧视检测
Wentao Sun1, Zhiyuan Wu1, Boxuan Yang2
1School of Electronics and Information Engineering, Hebei University of Technology, Tianjin 300401, China.
ACS omega
|December 11, 2023
概括
一种新的多孔陶基板显著加快了金属氧化物半导体 (MOS) 气体传感器的速度,提高了电子鼻子的性能,以更快地检测危险气体,并通过机器学习准确识别香烟品牌.
科学领域:
- 材料科学 材料科学 材料科学
- 传感器技术 传感器技术
- 分析化学 分析化学
背景情况:
- 电子鼻子通过金属氧化物半导体 (MOS) 气体传感器模仿动物的嗅觉.
- MOS传感器对于食品安全,空气质量监测和安全应用至关重要.
- 对于电子鼻子的广泛商业使用,需要更快的响应时间.
研究的目的:
- 开发一种新型的MOS气体传感器,采用多孔陶基板,用于快速气体扩散.
- 评估新传感器的传感性能和响应时间.
- 为了证明电子鼻子系统在危险气体识别和香烟品牌认证方面的能力.
主要方法:
- 使用多孔陶基板制造MOS气体传感器.
- 评估传感器阵列性能,重点关注响应时间 (T90).
- 开发一种低成本的电子系统,使用机器学习算法获取和分析数据.
主要成果:
- 与正常基板相比,多孔陶辅助MOS传感器的T90响应时间缩短了57%.
- 电子鼻子系统准确地区分了五种危险气体 (VOC,氨).
- 在使用机器学习 (KNN,Random Forest) 来识别香烟品牌方面实现了高精度 (>95%).
结论:
- 多孔陶基板显著提高了MOS气体传感器的响应速度.
- 开发的电子鼻子系统为气体传感和身份验证提供了快速,准确和具有成本效益的解决方案.
- 这种方法为制造快速响应电子鼻子提供了可靠的方法.
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