Next Article in Journal
Modelling Cross Axis Sensitivity in MEMS Coriolis Vibratory Gyroscopes
Previous Article in Journal
Laser-Microstructured Double-Sided Adhesive Tapes for Integration of a Disposable Biochip
Article Menu
Issue 4 (September) cover image

Article Versions

Export Article

Open AccessProceedings
Proceedings 2017, 1(4), 410; doi:10.3390/proceedings1040410

Enhanced Characteristics of Nondispersive Infrared CO2 Gas Sensor by Deposition of Hydrophobic Thin Film

1
Department of Mechanical Engineering, Korea National University of Transportation (KNUT), 50 Daehakro, Chungjushi, Chungbuk 27469, Korea
2
Humas Co., 59-6 Jang-Dong, YuSeong-Gu, DaeJeon 34113, Korea
Presented at the Eurosensors 2017 Conference, Paris, France, 3–6 September 2017.
*
Author to whom correspondence should be addressed.
Published: 17 August 2017
Download PDF [1105 KB, uploaded 13 October 2017]

Abstract

This paper presents the NDIR CO2 gas sensor that has improved the sensitivity and also the accuracy by the deposition of thin hydrophobic film (Parylene-C film with 0.5 micrometer thick) onto the reflector surfaces of White-cell structure. After deposition of hydrophobic thin film, the sensitivity of sensor has been increased with averaged 10% and the estimated errors were reduced within 13 ppm to 143 ppm from 254 K to 324 K temperature ranges and from 0 ppm to 5000 ppm CO2 concentrations.
Keywords: hydrophobic film; NDIR gas sensor; carbon dioxide gas sensor; White-cell structure; IR absorbance; temperature compensation hydrophobic film; NDIR gas sensor; carbon dioxide gas sensor; White-cell structure; IR absorbance; temperature compensation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Kim, J.; Lee, J.; Lee, K.; Yi, S. Enhanced Characteristics of Nondispersive Infrared CO2 Gas Sensor by Deposition of Hydrophobic Thin Film. Proceedings 2017, 1, 410.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Proceedings EISSN 2504-3900 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top