Detecting information in gas sensor responses using analysis of variance

• Tipo: Artigo em Revista Científica Internacional
• Data: 1998

Autores

Nicolas, C (Autor) Outra; Barros, AS (Autor) Outra; Rutledge, DN (Autor) Outra; Hossenlopp, J (Autor) Outra; Trystram, G (Autor) Outra; Emonet, C (Autor) Outra

Revista

Título: Analusis

Vol. 26

Páginas: 135-141

ISSN: 0365-4877

Editora: EDP Sciences

Indexação

ISI Web of Knowledge - 3 Citações

Scopus - 3 Citações

Outras Informações

ID Authenticus: P-008-S21

DOI: 10.1051/analusis:1998123

Abstract (EN): This article describes how Analysis of Variance may be used to select those regions of the curves generated by a gas sensor array which contain the most discriminant information for a particular application. The Analysis of Variance is performed on each point of the signals generated by the sensor array for a particular set of samples. The Group Variances and the Residual Variances are plotted as functions of their position in the signal. Regions of the signals that vary systematically from one group of samples to another will have high Group Variance values and low and randomly distributed Residual Variance values. This method has shown for a particular set of products for cats analysed with a thirty two polymer sensor array, that the most discriminant information is located at the end of the curves. It has also shown an absence of discrimination between standard and tainted pig fat samples with this sensor array. The advantage of this method is that it can be used on almost any sort of raw signal as a pre-analysis step in order to know whether it is worthwhile going on to more fastidious and time consuming signal analysis procedures.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7