Gas Sensors Arrays (‘Electronic Noses’): a study about the speed/accuracy ratio

Mielle, Patrick; Marquis, Florence

doi:10.1016/s0925-4005(00)00440-8

Cited by 18 publications

(6 citation statements)

References 3 publications

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“…For example, Mielle and Marquis (2000) analysed the sensor drift for an ethanol concentration. A sensory response feedback process was discussed by Zhang et al (2008) for a few chemical volatiles, and Garcia-Gonzalez and Aparicio (2010) for volatile compounds of virgin olive oil.…”

Section: Resultsmentioning

confidence: 99%

Electronic nose with polymer-composite sensors for monitoring fungal deterioration of stored rapeseed

Gancarz

Wawrzyniak

Gawrysiak‐Witulska

et al. 2017

International Agrophysics

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A b s t r a c t. Investigations were performed to examine the possibility of using an electronic nose to monitor development of fungal microflora during the first eighteen days of rapeseed storage. The Cyranose 320 device manufactured by Sensigent was used to analyse volatile organic compounds. Each sample of infected material was divided into three parts and the degree of spoilage was measured in three ways: analysis of colony forming units, determination of ergosterol content, and measurement of volatile organic compounds with the e-nose. Principal component analysis was performed on the generated patterns of signals and six groups of different spoilage levels were isolated. An analysis of sensorgrams for a few sensors with a strong signal for each group of rapeseed spoilage was performed. The ratio of the association time to the steady state was calculated. This ratio was different for the low level and the highest level of ergosterol and colony forming units. The results have shown that the e-nose can be a useful tool for quick estimation of the degree of rapeseed spoilage.

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Section: Resultsmentioning

confidence: 99%

Electronic nose with polymer-composite sensors for monitoring fungal deterioration of stored rapeseed

Gancarz

Wawrzyniak

Gawrysiak‐Witulska

et al. 2017

International Agrophysics

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“…poisonous gas), which are undetectable by human nose. Even though, sensors are very sensitive, they are only able to detect volatiles in the range of ppm with very few decimal places [Mielle and Marquis 1999;Wilkes et al 2000;Turek and Chmielewski 2006;Payel et al 2018].…”

Section: Electronic Nosementioning

confidence: 99%

Methods in food science and technology. Part 1

Walczycka¹,

Błaszczyk²

2022

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We would like to present to you a monograph entitled "Methods in food science and technology -part 1", which we hope will be warmly accepted and continued. Our intention was to gather in one place descriptions of modern methods used in science related to food and human nutrition. Although the monograph is written in English, it has been prepared in such a way that it can be used in the didactic process by teachers and their students and doctoral students. Each chapter is a separate whole, i.e. it is devoted to a different method or group of methods or techniques for food analysis, both in terms of its chemical composition, physical properties, sensory qualities, as well as its quality, stability and safety. The aim of the monograph is to present terminology and specialist vocabulary in an accessible way for a reader who is not a specialist in a given discipline. Importantly, individual chapters have been reviewed by at least two experts. We wish you pleasant reading and fruitful use of the monograph.

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“…A material may be odorous when the environmental temperature is above a critical point, or odorless otherwise. No matter when and where, repeated measurement results of ENs for a specific odor with fixed components and concentrations must be almost unanimous, which is one of the basic requirements for an instrument [1,10]. 1 Author to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

“…(B) How to avoid the unfavorable effects of manual operation? (C) How to ensure the components and concentrations of headspace vapors from the same kind of liquid, solid or cream samples are almost the same for a long period of time under changeable environment [10,11]? (D) How to make the adsorption and desorption of odor molecules quick enough so as not to deposit on the surfaces of sensitive films of sensors as well as the internal walls of working chamber and pipes?…”

Section: Introductionmentioning

confidence: 99%

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Quantitative analysis of different volatile organic compounds using an improved electronic nose

Gao¹,

Ji²,

Gong³

et al. 2012

Meas. Sci. Technol.

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This paper sets up an improved electronic nose with an automatic sampling mode, large volumetric vapors and constant temperature for headspace vapors and gas sensor array. In order to facilitate the fast recovery and good repeatability of gas sensors, the steps taken include (A) short-time contact with odors measured; (B) long-time purification using environmental air; (C) exact calibration using clean air before sampling. We employ multiple single-output perceptrons to discriminate and quantify multiple kinds of odors. This task is first regarded as multiple two-class discrimination problems and then multiple quantification problems, and accomplished by multiple single-output perceptrons followed by multiple single-output perceptrons. The experimental results for measuring and quantifying 12 kinds of volatile organic compounds with changing concentrations show that the type of electronic nose with a hierarchical perceptron model has a simple structure, easy operation, good repeatability and good discrimination and quantification performance.

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Gas Sensors Arrays (‘Electronic Noses’): a study about the speed/accuracy ratio

Cited by 18 publications

References 3 publications

Electronic nose with polymer-composite sensors for monitoring fungal deterioration of stored rapeseed

Electronic nose with polymer-composite sensors for monitoring fungal deterioration of stored rapeseed

Methods in food science and technology. Part 1

Quantitative analysis of different volatile organic compounds using an improved electronic nose

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