Odour classification system for continuous monitoring applications

Trincavelli, Marco; Coradeschi, Silvia; Loutfi, Amy

doi:10.1016/j.snb.2009.03.018

Cited by 64 publications

(54 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Volatile organic compounds can also cause serious health problems as a number of them exhibit toxic, carcinogenic, mutagenic or neurotoxic properties. Moreover, many of them possess malodorous character that can contribute to deterioration of air quality [10][11][12]. What is more, VOCs are present at different concentration levels in indoor air.…”

Section: Introductionmentioning

confidence: 99%

Currently Commercially Available Chemical Sensors Employed for Detection of Volatile Organic Compounds in Outdoor and Indoor Air

2017

View full text Add to dashboard Cite

Abstract:The paper presents principle of operation and design of the most popular chemical sensors for measurement of volatile organic compounds (VOCs) in outdoor and indoor air. It describes the sensors for evaluation of explosion risk including pellistors and IR-absorption sensors as well as the sensors for detection of toxic compounds such as electrochemical (amperometric), photoionization and semiconductor with solid electrolyte ones. Commercially available sensors for detection of VOCs and their metrological parameters-measurement range, limit of detection, measurement resolution, sensitivity and response time-were presented. Moreover, development trends and prospects of improvement of the metrological parameters of these sensors were highlighted.

show abstract

Section: Introductionmentioning

confidence: 99%

Currently Commercially Available Chemical Sensors Employed for Detection of Volatile Organic Compounds in Outdoor and Indoor Air

2017

View full text Add to dashboard Cite

show abstract

“…Nowadays unpleasant odours present in a vicinity of air pollution sources are one of the main reasons of the complaints on environment quality, including ambient air quality. The major reasons of the complaints include [3][4][5]:…”

Section: Introductionmentioning

confidence: 99%

Instrumental measurement of odour nuisance in city agglomeration using electronic nose

Szulczyński

Dymerski

Gębicki

et al. 2018

E3S Web of Conferences

View full text Add to dashboard Cite

Abstract. The paper describes an operation principle of odour nuisance monitoring network in a city agglomeration. Moreover, it presents the results of investigation on ambient air quality with respect to odour obtained during six-month period. The investigation was carried out using a network comprised of six prototypes of electronic nose and Nasal Ranger field olfactometers employed as a reference method. The monitoring network consisted of two measurement stations localized in a vicinity of crude oil processing plant and four stations localized near the main emitters of volatile odorous compounds such as sewage treatment plant, municipal landfill, phosphatic fertilizer production plant. The electronic nose prototype was equipped with a set of six semiconductor sensors by FIGARO Co. and one PID-type sensor. The field olfactometers were utilized for determination of mean concentration of odorants and for calibration of the electronic nose prototypes in order to provide their proper operation. Mean monthly values of odour concentration depended on the site of measurement and on meteorological parameters. They were within 0 -6.0 ou/m 3 range. Performed investigations revealed the possibility of electronic nose instrument application as a tool for monitoring of odour nuisance.

show abstract

“…Unfortunately these techniques are not immediately applicable to OSS because steady state values are almost never reached [11], basically due to the turbulence and advection that dominate gas transport in the setups of our interest.…”

Section: Related Workmentioning

confidence: 99%

Calibration of MOX gas sensors in open sampling systems based on Gaussian Processes

et al. 2012

Self Cite

View full text Add to dashboard Cite

Abstract-Calibration of metal oxide (MOX) gas sensor for continuous monitoring is a complex problem due to the highly dynamic characteristics of the gas sensor signal when exposed to natural environment (Open Sampling System -OSS). This work presents a probabilistic approach to the calibration of a MOX gas sensor based on Gaussian Processes (GP). The proposed approach estimates for every sensor measurement a probability distribution of the gas concentration. This enables the calculation of confidence intervals for the predicted concentrations. This is particularly important since exact calibration is hard to obtain due to the chaotic nature that dominates gas dispersal. The proposed approach has been tested with an experimental setup where an array of MOX sensors and a Photo Ionization Detector (PID) are placed downwind w.r.t. the gas source. The PID is used to obtain ground truth concentration. Comparison with standard calibration methods demonstrates the advantage of the proposed approach.

show abstract

Odour classification system for continuous monitoring applications

Cited by 64 publications

References 16 publications

Currently Commercially Available Chemical Sensors Employed for Detection of Volatile Organic Compounds in Outdoor and Indoor Air

Currently Commercially Available Chemical Sensors Employed for Detection of Volatile Organic Compounds in Outdoor and Indoor Air

Instrumental measurement of odour nuisance in city agglomeration using electronic nose

Calibration of MOX gas sensors in open sampling systems based on Gaussian Processes

Contact Info

Product

Resources

About