Reproductivity Study of Metal Oxide Gas Sensors Using Two Different Temperature Setups

G. Zambotti, A. Ponzoni
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引用次数: 2

Abstract

The use of the electronic nose as a screening device is of great interest in various types of applications, including food quality control and environmental monitoring. It is an easy-to-use device and produces a much faster response than that obtained by classical chemical and microbiological techniques. The reproductivity of nominally identical electronic noses and sensors is critical. Four identical MOX sensors were compared using two different working methods, namely, the temperature modulation mode and isothermal mode. Each sensor was tested with two standard compounds, water and lactic acid, often identified in food matrices, which are potential applications of the electronic nose.
两种不同温度设置下金属氧化物气体传感器的再现性研究
电子鼻作为一种筛选装置在食品质量控制和环境监测等各种类型的应用中都有很大的应用价值。它是一种易于使用的装置,并且产生比传统化学和微生物技术更快的响应。名义上相同的电子鼻和传感器的再生能力至关重要。比较了4种相同的MOX传感器在温度调制模式和等温模式下的两种不同工作方式。每个传感器都用两种标准化合物——水和乳酸进行测试,这两种化合物通常在食物基质中发现,这是电子鼻的潜在应用。
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