Development of Order Sensing System using Quartz-resonators

利用4个和6个石英谐振器包覆吸收膜，研制了气味传感系统，并对柑橘类水果进行了识别试验，通过共振频率的响应模式，可以区分出柚子、枸杞、枸杞、柠檬、葡萄柚等13种柑橘类水果的细微差异。通过汽化有序样品，它能够在短的测量时间内以高灵敏度进行区分。对传感器阵列的组成进行了优化，并针对柑橘类水果进行了11种膜的识别试验，分析石英谐振器的响应模式对优化后的气味传感系统具有重要意义。利用6条瞬态响应曲线的梯度进行神经网络分析的模式识别分析，该方法对8种柑橘类水果的识别概率均在80%以上。

We have developed odor sensing systems using the four and six quartz-resonators coated with absorption films, Recognition of citrus fruits with these systems was tried, From the response pattern of resonant frequency, fine difference among thirteen kinds of citrus fruits (Yuzu, lyokan, Tosa-buntan, lemon, grapefruits, etc.) could be discriminated. By vaporizing the order samples, it was able to discriminate with high sensitivity for a short measurement time. The optimization of the sensor-array components has been made, and for the recognition of citrus fruits, 11 kinds of membrane were tried, It is important to analyze the response pattern of quartz-resonators for the optimized odor sensing system. The pattern recognition analysis by neural network analysis was carried out using the gradient of six transient response curves, The recognition probability of this method for eight kinds of citrus fruits is more than 80%.