All-optical light-induced thermoacoustic spectroscopy for remote and non-contact gas sensing

Pan, Yufeng; Zhao, Jinbiao; Lü, Ping; Sima, Chaotan; Zhang, Wanjin; Fu, Lujun; Liu, Deming; Zhang, Jiangshan; Wu, Hongpeng

doi:10.1016/j.pacs.2022.100389

Cited by 19 publications

(4 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since measurements are based on a fundamental physical property of the molecule under study, there are ways to avoid some of the error mechanisms present in other technologies, including drift, lack of selectivity, and changes in sensitivity from experiment to experiment. Measuring the parameters of gases by optical means also opens unique possibilities [27]. In particular, the adjustment of sensitivity, as well as the availability of feedback in the instrument, where one can monitor during operation whether they have failed (e.g., due to a faulty light source or failure to direct sufficient light to the photodetector).…”

Section: Discussionmentioning

confidence: 99%

Diffusion flames and a semi-empirical method for estimating the distribution of hydrogen molecules in propane flames

Sargsyan,

Gukasyan,

Sargsyan

et al. 2023

Scientific Herald of Uzhhorod University Series Physics

View full text Add to dashboard Cite

Relevance. The greatest effectiveness in determining the main characteristics in gas burning was shown by optical methods due to their high speed and accuracy. Despite all the advantages of these methods, their main disadvantage is the price and folding of implementation. Therefore, today it is necessary to improve approaches to solve this problem. Purpose. The research is devoted to the study of diffusion flame by a semi-empirical method. Methods. The data of the experimental study of the diffusion flame of hydrocarbons on the example of propane are presented. To visualize the invisible part of the structure of this flame, namely, the afterburning zone of hydrogen molecules formed in the flames in nonequilibrium quantities and, due to the large value of the diffusion coefficient, leaving the flame zone and creating a new combustion zone, molecules containing atoms of alkali metals (NaCl and Na2CO3) are vaporized in the flame zone. Results. The method of delivery of molecules of alkali metal salts from outside was applied for the first time, which allowed the investigation of this phenomenon more thoroughly. Based on the research results, a method for determining the concentration of hydrogen atoms and the relative distribution of the concentration of hydrogen molecules along the axis of propagation of the flame after the burning zone was proposed. The research method combines experiments with mathematical modeling. The application of the method described in the article makes it possible to determine the distribution of hydrogen molecules over the glow zone of the main fuel. Conclusions. The results obtained will help to better understand the phenomena of hydrocarbon combustion under diffusion flame conditions, as well as to search for new ways of obtaining hydrogen fuel from domestic waste treatment

show abstract

Section: Discussionmentioning

confidence: 99%

Diffusion flames and a semi-empirical method for estimating the distribution of hydrogen molecules in propane flames

Sargsyan,

Gukasyan,

Sargsyan

et al. 2023

Scientific Herald of Uzhhorod University Series Physics

View full text Add to dashboard Cite

show abstract

“…220 In a similar vein, the 3D-printed framework can be employed in constructing a compact QTF-based fiber-optic Fabry−Perot interferometry device. 221 Viola 222 reported on the fabrication of an absorption detection module using micrometal laser sintering for a QEPAS sensor. This module not only allowed for easier and more cost-effective customization but also achieved significant miniaturization of internal volumes.…”

Section: Structural Componentsmentioning

confidence: 99%

“…Furthermore, this 3D-printed unit facilitates the miniaturization and reduction in weight of the acoustic gas detectors . In a similar vein, the 3D-printed framework can be employed in constructing a compact QTF-based fiber-optic Fabry–Perot interferometry device . Viola reported on the fabrication of an absorption detection module using micrometal laser sintering for a QEPAS sensor.…”

Section: D-printed Gas Sensing Modulesmentioning

confidence: 99%

Programmable and Modularized Gas Sensor Integrated by 3D Printing

Zhou,

Zhao,

Xun

et al. 2024

Chem. Rev.

View full text Add to dashboard Cite

The rapid advancement of intelligent manufacturing technology has enabled electronic equipment to achieve synergistic design and programmable optimization through computer-aided engineering. Three-dimensional (3D) printing, with the unique characteristics of near-net-shape forming and mold-free fabrication, serves as an effective medium for the materialization of digital designs into usable devices. This methodology is particularly applicable to gas sensors, where performance can be collaboratively optimized by the tailored design of each internal module including composition, microstructure, and architecture. Meanwhile, diverse 3D printing technologies can realize modularized fabrication according to the application requirements. The integration of artificial intelligence software systems further facilitates the output of precise and dependable signals. Simultaneously, the self-learning capabilities of the system also promote programmable optimization for the hardware, fostering continuous improvement of gas sensors for dynamic environments. This review investigates the latest studies on 3D-printed gas sensor devices and relevant components, elucidating the technical features and advantages of different 3D printing processes. A general testing framework for the performance evaluation of customized gas sensors is proposed. Additionally, it highlights the superiority and challenges of programmable and modularized gas sensors, providing a comprehensive reference for material adjustments, structure design, and process modifications for advanced gas sensor devices.

show abstract

“…Optical fiber has the advantages of anti−electromagnetic interference and corrosion resistance, and has been widely used in the detection field [ 154 , 155 , 156 ]. Normally, fiber−based humidity sensors mainly include Mach−Zehnder interferometers (MZI), Fabry−Perot interferometers (FPI), photonic crystal fibers (PCF), and long−period fiber gratings (LPFG) [ 157 ].…”

Section: Humidity Sensors Based On Mofsmentioning

confidence: 99%

Humidity Sensors Based on Metal–Organic Frameworks

Teng

Zhang

2022

Nanomaterials

View full text Add to dashboard Cite

Humidity sensors are important in industrial fields and human activities. Metal−organic frameworks (MOFs) and their derivatives are a class of promising humidity−sensing materials with the characteristics of a large specific surface area, high porosity, modifiable frameworks, and high stability. The drawbacks of MOFs, such as poor film formation, low electrical conductivity, and limited hydrophilicity, have been gradually overcome with the development of material science. Currently, it is moving towards a critical development stage of MOF−based humidity sensors from usability to ease of use, of which great challenges remain unsolved. In order to better understand the related challenges and point out the direction for the future development of MOF−based humidity sensors, we reviewed the development of such sensors based on related published work, focusing on six primary types (impedance, capacitive, resistive, fluorescent, quartz crystal microbalance (QCM), and others) and analyzed the sensing mechanism, material design, and sensing performance involved, and presented our thoughts on the possible future research directions.

show abstract

All-optical light-induced thermoacoustic spectroscopy for remote and non-contact gas sensing

Cited by 19 publications

References 57 publications

Diffusion flames and a semi-empirical method for estimating the distribution of hydrogen molecules in propane flames

Diffusion flames and a semi-empirical method for estimating the distribution of hydrogen molecules in propane flames

Programmable and Modularized Gas Sensor Integrated by 3D Printing

Humidity Sensors Based on Metal–Organic Frameworks

Contact Info

Product

Resources

About