Volatile organic compounds detection technology, electronic nose, is promising in various applications such as health management, environmental monitoring, public safety, agriculture, and food production. The critical point of electronic nose to achieve good recognition ability, the fundament for applications, is the generation of high-quality signal characteristics that are transduced from each sensor unit, and aided with algorithm. However, chamber without uniform fluidic state introduce sensors' locations caused artificial characteristics to make the recognition difficult, even incredible. Inspired by the structure of the nasal cavity, a small volume chamber with well-controlled fluidic behavior is designed and fabricated according to theoretical simulation. All the expected fluidic features, including uniform flow field and concentration field, are achieved, which are experimentally demonstrated by humidity and 2-hexanone detection using sensors arrays. The well controlled fluidic behaviors of volatile analytes help achieving the ultra-sensitive volatile organic compounds detection, which might shed a new light for e-nose technology to go over the gap between academics and industry.

中文翻译：

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控制超灵敏挥发性传感的流体行为

挥发性有机物检测技术电子鼻在健康管理、环境监测、公共安全、农业、食品生产等领域具有广阔的应用前景。电子鼻实现良好识别能力的关键点，应用的基础，是从每个传感器单元转换并辅以算法的高质量信号特征的生成。然而，没有均匀流体状态的腔室引入传感器的位置造成人为特征，使得识别变得困难，甚至令人难以置信。受鼻腔结构的启发，根据理论模拟设计和制造了一个具有良好控制的流体行为的小体积腔室。所有预期的流体特征，实现了包括均匀流场和浓度场，通过使用传感器阵列的湿度和 2-己酮检测实验证明了这一点。挥发性分析物良好控制的流体行为有助于实现超灵敏的挥发性有机化合物检测，这可能为电子鼻技术跨越学术界和工业界之间的鸿沟提供新的思路。