Experimental Research on Measuring the Concentration of CO<sub>2</sub> in Gas-Liquid Solution Based on PZT Piezoelectric-Photoacoustic Spectroscopy
The feasibility of a scheme in which the concentration of CO<sub>2</sub> in gas-liquid solution is directly measured based on PZT piezoelectric-photoacoustic spectroscopy was evaluated. The existing device used for the measurement of gas concentration in gas-liquid solution has several l...
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| Format: | Article |
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MDPI AG
2022-01-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/3/936 |
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| author | Hongquan Zheng Yunlong Li Yang Chen Zhentao Wang Jingmin Dai |
| author_facet | Hongquan Zheng Yunlong Li Yang Chen Zhentao Wang Jingmin Dai |
| author_sort | Hongquan Zheng |
| collection | DOAJ |
| description | The feasibility of a scheme in which the concentration of CO<sub>2</sub> in gas-liquid solution is directly measured based on PZT piezoelectric-photoacoustic spectroscopy was evaluated. The existing device used for the measurement of gas concentration in gas-liquid solution has several limitations, including prolonged duration, loss of gas, and high cost due to the degassing component. In this study, we developed a measuring device in order to solve the problems mentioned above. Using this device, how the intensity of the photoacoustic signal changes with the concentration of CO<sub>2</sub> was demonstrated through experiment. The impact that variation of the laser modulation frequency has on the photoacoustic signal was also studied. Furthermore, the experimental data generated from measuring the concentration of CO<sub>2</sub> in gas-liquid solution was verified for a wide range of concentrations. It was found that, not only can the error rate of the device be less than 7%, but the time of measurement can be within 60 s. To sum up, the scheme is highly feasible according to the experimental results, which makes measurement of the concentration of a gas in gas-liquid solution in the future more straightforward. |
| first_indexed | 2024-03-09T23:08:45Z |
| format | Article |
| id | doaj.art-59f8056f52504cf8940eaac0861a5a46 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T23:08:45Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
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| series | Sensors |
| spelling | doaj.art-59f8056f52504cf8940eaac0861a5a462023-11-23T17:47:50ZengMDPI AGSensors1424-82202022-01-0122393610.3390/s22030936Experimental Research on Measuring the Concentration of CO<sub>2</sub> in Gas-Liquid Solution Based on PZT Piezoelectric-Photoacoustic SpectroscopyHongquan Zheng0Yunlong Li1Yang Chen2Zhentao Wang3Jingmin Dai4School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150001, ChinaThe feasibility of a scheme in which the concentration of CO<sub>2</sub> in gas-liquid solution is directly measured based on PZT piezoelectric-photoacoustic spectroscopy was evaluated. The existing device used for the measurement of gas concentration in gas-liquid solution has several limitations, including prolonged duration, loss of gas, and high cost due to the degassing component. In this study, we developed a measuring device in order to solve the problems mentioned above. Using this device, how the intensity of the photoacoustic signal changes with the concentration of CO<sub>2</sub> was demonstrated through experiment. The impact that variation of the laser modulation frequency has on the photoacoustic signal was also studied. Furthermore, the experimental data generated from measuring the concentration of CO<sub>2</sub> in gas-liquid solution was verified for a wide range of concentrations. It was found that, not only can the error rate of the device be less than 7%, but the time of measurement can be within 60 s. To sum up, the scheme is highly feasible according to the experimental results, which makes measurement of the concentration of a gas in gas-liquid solution in the future more straightforward.https://www.mdpi.com/1424-8220/22/3/936gas-liquid solutiondirect measurementphotoacoustic spectroscopyPZT piezoelectric effect |
| spellingShingle | Hongquan Zheng Yunlong Li Yang Chen Zhentao Wang Jingmin Dai Experimental Research on Measuring the Concentration of CO<sub>2</sub> in Gas-Liquid Solution Based on PZT Piezoelectric-Photoacoustic Spectroscopy Sensors gas-liquid solution direct measurement photoacoustic spectroscopy PZT piezoelectric effect |
| title | Experimental Research on Measuring the Concentration of CO<sub>2</sub> in Gas-Liquid Solution Based on PZT Piezoelectric-Photoacoustic Spectroscopy |
| title_full | Experimental Research on Measuring the Concentration of CO<sub>2</sub> in Gas-Liquid Solution Based on PZT Piezoelectric-Photoacoustic Spectroscopy |
| title_fullStr | Experimental Research on Measuring the Concentration of CO<sub>2</sub> in Gas-Liquid Solution Based on PZT Piezoelectric-Photoacoustic Spectroscopy |
| title_full_unstemmed | Experimental Research on Measuring the Concentration of CO<sub>2</sub> in Gas-Liquid Solution Based on PZT Piezoelectric-Photoacoustic Spectroscopy |
| title_short | Experimental Research on Measuring the Concentration of CO<sub>2</sub> in Gas-Liquid Solution Based on PZT Piezoelectric-Photoacoustic Spectroscopy |
| title_sort | experimental research on measuring the concentration of co sub 2 sub in gas liquid solution based on pzt piezoelectric photoacoustic spectroscopy |
| topic | gas-liquid solution direct measurement photoacoustic spectroscopy PZT piezoelectric effect |
| url | https://www.mdpi.com/1424-8220/22/3/936 |
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