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Wilks Lamda 방법을 이용한 화학센서 어레이 최적화
전진영 ( Jin Young Jeon ),유준부 ( Jeong Suk Shin ),신정숙 ( Joon Boo Yu ),변형기 ( Hyung Gi Byun ) 한국센서학회 2014 센서학회지 Vol.23 No.5
Optimizing the performance of a composite sensor array is necessary when the number of sensors to choose from is large. In this paper, we present a chemical sensors array optimization method using Wilks Lamda algorithm applicable a device to detect low concentration of alcohol from driver’s exhale breath for interlocking engine ignition preventing drink-driving. More than 20 chemical sensors fabricated different synthetic stuffs and heater temperatures by collaborators were nominated, 5 sensors were selected for optimal sensors array using the method, and alcohol samples were well discriminated from the interference gases inside the vehicle. It has been confirmed by Principal Component Analysis (PCA).