Power-error analysis of sensor array regression algorithms for gas mixture quantification in low-power microsystems

Yang, Yuning; Yi, Jinfeng; Jin, Rong; Mason, Andrew J.

doi:10.1109/icsens.2013.6688580

Cited by 4 publications

(2 citation statements)

References 12 publications

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“…An electronic nose is a device composed of an array of gas sensors that shows different response patterns when exposed to different gas constituents or concentrations [13,21]. In order to obtain accurate results, the number of sensors in the gas sensor array should be greater than the number of target components in the system [22,23].…”

Section: Measurements Of the Liquid Phase Concentration In Ternary MImentioning

confidence: 99%

Measuring Vapor and Liquid Concentrations for Binary and Ternary Systems in a Microbubble Distillation Unit via Gas Sensors

et al. 2018

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A cost effective, fast, and accurate technique was needed to measure the vapor composition of a binary system (ethanol-water) and also that of a liquid composition in a ternary system (acetic acid-acetol–water) in a microbubble distillation unit. Cheap TGS-series gas sensors were used for this purpose with both calibrations and measurements carried out in a specially designed chamber. A single parameter polynomial regression was fitted to the binary system, and a two parameter polynomial with an interaction term was fitted to the ternary system. The correlation coefficient, R-squared, was found to be greater than 0.99 for both systems, thus validating the implementation of this novel sensor.

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Section: Measurements Of the Liquid Phase Concentration In Ternary MImentioning

confidence: 99%

Measuring Vapor and Liquid Concentrations for Binary and Ternary Systems in a Microbubble Distillation Unit via Gas Sensors

et al. 2018

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“…Responses to other gases such as CH 4 and NO 2 have also demonstrated by our RTIL sensors [26, 27]. Arrays of such sensors can be employed to monitor gas mixtures using advanced signal processing algorithms [6, 28]. …”

Section: Approach and Circuit Conceptmentioning

confidence: 99%

CMOS Amperometric ADC With High Sensitivity, Dynamic Range and Power Efficiency for Air Quality Monitoring

Boling

Mason

2016

IEEE Trans. Biomed. Circuits Syst.

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Airborne pollutants are a leading cause of illness and mortality globally. Electrochemical gas sensors show great promise for personal air quality monitoring to address this worldwide health crisis. However, implementing miniaturized arrays of such sensors demands high performance instrumentation circuits that simultaneously meet challenging power, area, sensitivity, noise and dynamic range goals. This paper presents a new multi-channel CMOS amperometric ADC featuring pixel-level architecture for gas sensor arrays. The circuit combines digital modulation of input currents and an incremental ΣΔ ADC to achieve wide dynamic range and high sensitivity with very high power efficiency and compact size. Fabricated in 0.5 μm CMOS, the circuit was measured to have 164 dB cross-scale dynamic range, 100 fA sensitivity while consuming only 241 μW and 0.157mm2 active area per channel. Electrochemical experiments with liquid and gas targets demonstrate the circuit’s real-time response to a wide range of analyte concentrations.

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Room temperature ionic-liquid electrochemical gas sensor array system for real-time mine safety monitoring

Wang

et al. 2013

2013 Ieee Sensors

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Power-error analysis of sensor array regression algorithms for gas mixture quantification in low-power microsystems

Cited by 4 publications

References 12 publications

Measuring Vapor and Liquid Concentrations for Binary and Ternary Systems in a Microbubble Distillation Unit via Gas Sensors

Measuring Vapor and Liquid Concentrations for Binary and Ternary Systems in a Microbubble Distillation Unit via Gas Sensors

CMOS Amperometric ADC With High Sensitivity, Dynamic Range and Power Efficiency for Air Quality Monitoring

Room temperature ionic-liquid electrochemical gas sensor array system for real-time mine safety monitoring

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