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Development of an optical gas leak sensor for detecting ethylene, dimethyl ether and methane.

Tan Q, Pei X, Zhu S, Sun D, Liu J, Xue C, Liang T, Zhang W, Xiong J - Sensors (Basel) (2013)

Bottom Line: The proposed sensor includes two detectors (one to acquire the reference signal and the other for the response signal), the light source, and the filter, all of which are integrated in a miniature gold-plated chamber.The produced sensor prototype had an accuracy of ±0.05%.Experiments which simulate the transportation of hazardous chemicals demonstrated that the developed sensor exhibited a good dynamic response and adequately met technical requirements.

View Article: PubMed Central - PubMed

Affiliation: Key Laboratory of Instrumentation Science & Dynamic Measurement, North University of China, Ministry of Education, Taiyuan 030051, Shanxi, China. qltan99@163.com

ABSTRACT
In this paper, we present an approach to develop an optical gas leak sensor that can be used to measure ethylene, dimethyl ether, and methane. The sensor is designed based on the principles of IR absorption spectrum detection, and comprises two crossed elliptical surfaces with a folded reflection-type optical path. We first analyze the optical path and the use of this structure to design a miniature gas sensor. The proposed sensor includes two detectors (one to acquire the reference signal and the other for the response signal), the light source, and the filter, all of which are integrated in a miniature gold-plated chamber. We also designed a signal detection device to extract the sensor signal and a microprocessor to calculate and control the entire process. The produced sensor prototype had an accuracy of ±0.05%. Experiments which simulate the transportation of hazardous chemicals demonstrated that the developed sensor exhibited a good dynamic response and adequately met technical requirements.

No MeSH data available.


(a) Basic components of sensor; (b) integrated detector and light source; (c) miniature gilded air chamber; (d) peripheral IC of sensor; (e) end-product; and (f)the output interface of the detector.
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f7-sensors-13-04157: (a) Basic components of sensor; (b) integrated detector and light source; (c) miniature gilded air chamber; (d) peripheral IC of sensor; (e) end-product; and (f)the output interface of the detector.

Mentions: The signal processing circuit detects and amplifies the weak sensor signal. The MCU mainly performs calculations and controls the other components. The module is easy to use and can also be used to detect other gases if the sensitive probe is replaced. Figure 7 shows the basic components and final sensor.


Development of an optical gas leak sensor for detecting ethylene, dimethyl ether and methane.

Tan Q, Pei X, Zhu S, Sun D, Liu J, Xue C, Liang T, Zhang W, Xiong J - Sensors (Basel) (2013)

(a) Basic components of sensor; (b) integrated detector and light source; (c) miniature gilded air chamber; (d) peripheral IC of sensor; (e) end-product; and (f)the output interface of the detector.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3673077&req=5

f7-sensors-13-04157: (a) Basic components of sensor; (b) integrated detector and light source; (c) miniature gilded air chamber; (d) peripheral IC of sensor; (e) end-product; and (f)the output interface of the detector.
Mentions: The signal processing circuit detects and amplifies the weak sensor signal. The MCU mainly performs calculations and controls the other components. The module is easy to use and can also be used to detect other gases if the sensitive probe is replaced. Figure 7 shows the basic components and final sensor.

Bottom Line: The proposed sensor includes two detectors (one to acquire the reference signal and the other for the response signal), the light source, and the filter, all of which are integrated in a miniature gold-plated chamber.The produced sensor prototype had an accuracy of ±0.05%.Experiments which simulate the transportation of hazardous chemicals demonstrated that the developed sensor exhibited a good dynamic response and adequately met technical requirements.

View Article: PubMed Central - PubMed

Affiliation: Key Laboratory of Instrumentation Science & Dynamic Measurement, North University of China, Ministry of Education, Taiyuan 030051, Shanxi, China. qltan99@163.com

ABSTRACT
In this paper, we present an approach to develop an optical gas leak sensor that can be used to measure ethylene, dimethyl ether, and methane. The sensor is designed based on the principles of IR absorption spectrum detection, and comprises two crossed elliptical surfaces with a folded reflection-type optical path. We first analyze the optical path and the use of this structure to design a miniature gas sensor. The proposed sensor includes two detectors (one to acquire the reference signal and the other for the response signal), the light source, and the filter, all of which are integrated in a miniature gold-plated chamber. We also designed a signal detection device to extract the sensor signal and a microprocessor to calculate and control the entire process. The produced sensor prototype had an accuracy of ±0.05%. Experiments which simulate the transportation of hazardous chemicals demonstrated that the developed sensor exhibited a good dynamic response and adequately met technical requirements.

No MeSH data available.