The volatile organic compounds (VOCs) enrichment technology is of great significance to an electronic nose (e-nose) system. In this article, a novel preconcentration system and conformal sensor chamber are designed by combining conventional e-nose technology with VOCs enrichment technology. The aim of this article is to find the optimum sweeping speed of the preconcentration system based on the conformal sensor chamber. The connectivity and diffusion of the chamber are analyzed by FLUENT simulation so that it is meaningful to measure the optimum sweeping speed of the preconcentration system based on the sensor array in the chamber. The performance of the adsorption tube at different sweeping speeds is tested by gas chromatography mass spectrometry; then, the optimal sweeping speed for the conformal sensor chamber and the conventional sensor chamber is obtained based on the sensor comprehensive response change using Newton method. Finally, the sensor comprehensive responses toward the exhaled gases of healthy people and patients under different sensor chamber conditions demonstrate that the sweeping speed obtained by the Newton method is analytically proved optimal.

中文翻译：

---

基于共形传感器腔室的多传感器电子鼻设计

挥发性有机化合物（VOC）富集技术对电子鼻（e-nose）系统具有重要意义。本文将传统的电子鼻技术与VOC富集技术相结合，设计了一种新型的预浓缩系统和保形传感器腔。本文的目的是找到基于保形传感器腔室的预浓缩系统的最佳清扫速度。通过FLUENT模拟分析室的连通性和扩散性，因此基于室中的传感器阵列来测量预浓缩系统的最佳吹扫速度非常有意义。通过气相色谱质谱法测试在不同吹扫速度下吸附管的性能；然后，利用牛顿法，根据传感器的综合响应变化，得到适形传感器腔和常规传感器腔的最佳扫掠速度。最后，在不同的传感器腔室条件下，传感器对健康人和患者呼出气体的综合响应表明，牛顿法获得的扫掠速度被分析证明是最佳的。