Sensor fusion of electronic nose and electronic tongue for classification of Orthosiphon stamineus
Ali Yeon, Md Shakaff, Prof. Dr.
Abdul Hamid, Adom, Assoc. Prof. Dr.
Mansur N., Ahmad
Abd. Razak, Shaari
Mahmad Nor, Jaafar, Prof. Madya
Abu Hassan, Abdullah
Nazifah A., Fikri
Latifah Munirah, Kamarudin
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Sensor fusion of electronic nose (e-nose) and electronic tongue (e-tongue) has lead to an improved classification of Orthosiphon stamineus (also known as Misai Kucing). The fusion technique was presented and compared with individual assessment using e-nose and e-tongue separately. Three different commercial sources along with freshly prepared sample were discriminated using an e-nose and an e-tongue. Headspace of these dried Orthosiphon stamineus leaves and brewed samples were measured and compared using e-nose in order to determine the optimum setting for experimental setup and sniffing cycle. Applying the Principal Component Analysis (PCA) separately on the respective e-tongue and e-nose data, only three distinct classes can be classified. However, by employing an improved technique of data fusion of the two modalities, classification of the four distinct groups was achieved.