Long term stable Δ-Σ NDIR technique based on temperature compensation

Chih Hsiung Shen; Jun Hong Yeah

doi:10.3390/app9020309

Long term stable Δ-Σ NDIR technique based on temperature compensation

Chih Hsiung Shen, Jun Hong Yeah

Department of Mechatronic Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

For a fast and long termstableNon Dispersive Infrared (NDIR) technology of gas concentration measurement, the temperature compensation is required. A novel proposed Δ-Σ NDIR system was investigated and built with a closed-loop feedback system to stabilize the signal readings without temperature drift. The modulation of the infrared heater gives a corresponding signal of gas concentration based on our proposed Δ-Σ conversion algorithm that was affected by the drift of temperatures for the infrared sensor. For our study, a new temperature compensation model was built and verified that formulates the relationship between gas concentration and temperature of sensor. The results show that our proposed Δ-Σ can measure efficiently with half of the startup time than our previous design and maintain long term stability.

Original language	English
Article number	309
Journal	Applied Sciences (Switzerland)
Volume	9
Issue number	2
DOIs	https://doi.org/10.3390/app9020309
Publication status	Published - 2019 Jan 16

All Science Journal Classification (ASJC) codes

Materials Science(all)
Instrumentation
Engineering(all)
Process Chemistry and Technology
Computer Science Applications
Fluid Flow and Transfer Processes

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title = "Long term stable Δ-Σ NDIR technique based on temperature compensation",

abstract = "For a fast and long termstableNon Dispersive Infrared (NDIR) technology of gas concentration measurement, the temperature compensation is required. A novel proposed Δ-Σ NDIR system was investigated and built with a closed-loop feedback system to stabilize the signal readings without temperature drift. The modulation of the infrared heater gives a corresponding signal of gas concentration based on our proposed Δ-Σ conversion algorithm that was affected by the drift of temperatures for the infrared sensor. For our study, a new temperature compensation model was built and verified that formulates the relationship between gas concentration and temperature of sensor. The results show that our proposed Δ-Σ can measure efficiently with half of the startup time than our previous design and maintain long term stability.",

author = "Shen, {Chih Hsiung} and Yeah, {Jun Hong}",

note = "Funding Information: Funding: The authors would like to thank the Ministry of Science and Technology of the Republic of China, Taiwan, for financially supporting this research under contract MOST 107-2221-E-018-012.",

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T1 - Long term stable Δ-Σ NDIR technique based on temperature compensation

AU - Shen, Chih Hsiung

AU - Yeah, Jun Hong

N1 - Funding Information: Funding: The authors would like to thank the Ministry of Science and Technology of the Republic of China, Taiwan, for financially supporting this research under contract MOST 107-2221-E-018-012.

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N2 - For a fast and long termstableNon Dispersive Infrared (NDIR) technology of gas concentration measurement, the temperature compensation is required. A novel proposed Δ-Σ NDIR system was investigated and built with a closed-loop feedback system to stabilize the signal readings without temperature drift. The modulation of the infrared heater gives a corresponding signal of gas concentration based on our proposed Δ-Σ conversion algorithm that was affected by the drift of temperatures for the infrared sensor. For our study, a new temperature compensation model was built and verified that formulates the relationship between gas concentration and temperature of sensor. The results show that our proposed Δ-Σ can measure efficiently with half of the startup time than our previous design and maintain long term stability.

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