A portable analog lock-in amplifier for accurate phase measurement and application in high-precision optical oxygen concentration detection
Abstract A portable analog lock-in amplifier capable of accurate phase detection is proposed in this paper. The proposed lock-in amplifier, which uses the dual-channel orthometric signals as the references to build the xy coordinate system, can detect the relative phase between the input and x-axis...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2016-10-01
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| Series: | Photonic Sensors |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/s13320-016-0335-7 |
| _version_ | 1818875543198629888 |
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| author | Xi Chen Jun Chang Fupeng Wang Zongliang Wang Wei Wei Yuanyuan Liu Zengguang Qin |
| author_facet | Xi Chen Jun Chang Fupeng Wang Zongliang Wang Wei Wei Yuanyuan Liu Zengguang Qin |
| author_sort | Xi Chen |
| collection | DOAJ |
| description | Abstract A portable analog lock-in amplifier capable of accurate phase detection is proposed in this paper. The proposed lock-in amplifier, which uses the dual-channel orthometric signals as the references to build the xy coordinate system, can detect the relative phase between the input and x-axis based on trigonometric function. The sensitivity of the phase measurement reaches 0.014 degree, and a detection precision of 0.1 degree is achieved. At the same time, the performance of the lock-in amplifier is verified in the high precision optical oxygen concentration detection. Experimental results reveal that the portable analog lock-in amplifier is accurate for phase detection applications. In the oxygen sensing experiments, 0.058% oxygen concentration resulted in 0.1 degree phase shift detected by the lock-in amplifier precisely. In addition, the lock-in amplifier is small and economical compared with the commercial lock-in equipments, so it can be easily integrated in many portable devices for industrial applications. |
| first_indexed | 2024-12-19T13:28:10Z |
| format | Article |
| id | doaj.art-0a22ac44b74d48cab2d605ee82929f54 |
| institution | Directory Open Access Journal |
| issn | 1674-9251 2190-7439 |
| language | English |
| last_indexed | 2024-12-19T13:28:10Z |
| publishDate | 2016-10-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Photonic Sensors |
| spelling | doaj.art-0a22ac44b74d48cab2d605ee82929f542022-12-21T20:19:29ZengSpringerOpenPhotonic Sensors1674-92512190-74392016-10-0171273610.1007/s13320-016-0335-7A portable analog lock-in amplifier for accurate phase measurement and application in high-precision optical oxygen concentration detectionXi Chen0Jun Chang1Fupeng Wang2Zongliang Wang3Wei Wei4Yuanyuan Liu5Zengguang Qin6School of Information Science and Engineering and Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong UniversitySchool of Information Science and Engineering and Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong UniversitySchool of Information Science and Engineering and Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong UniversitySchool of Physics Science and Information Technology and Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng UniversitySchool of Information Science and Engineering and Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong UniversitySchool of Information Science and Engineering and Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong UniversitySchool of Information Science and Engineering and Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong UniversityAbstract A portable analog lock-in amplifier capable of accurate phase detection is proposed in this paper. The proposed lock-in amplifier, which uses the dual-channel orthometric signals as the references to build the xy coordinate system, can detect the relative phase between the input and x-axis based on trigonometric function. The sensitivity of the phase measurement reaches 0.014 degree, and a detection precision of 0.1 degree is achieved. At the same time, the performance of the lock-in amplifier is verified in the high precision optical oxygen concentration detection. Experimental results reveal that the portable analog lock-in amplifier is accurate for phase detection applications. In the oxygen sensing experiments, 0.058% oxygen concentration resulted in 0.1 degree phase shift detected by the lock-in amplifier precisely. In addition, the lock-in amplifier is small and economical compared with the commercial lock-in equipments, so it can be easily integrated in many portable devices for industrial applications.http://link.springer.com/article/10.1007/s13320-016-0335-7Portable analog lock-in amplifierphase shift measurementhigh accuracyoptical oxygen detection |
| spellingShingle | Xi Chen Jun Chang Fupeng Wang Zongliang Wang Wei Wei Yuanyuan Liu Zengguang Qin A portable analog lock-in amplifier for accurate phase measurement and application in high-precision optical oxygen concentration detection Photonic Sensors Portable analog lock-in amplifier phase shift measurement high accuracy optical oxygen detection |
| title | A portable analog lock-in amplifier for accurate phase measurement and application in high-precision optical oxygen concentration detection |
| title_full | A portable analog lock-in amplifier for accurate phase measurement and application in high-precision optical oxygen concentration detection |
| title_fullStr | A portable analog lock-in amplifier for accurate phase measurement and application in high-precision optical oxygen concentration detection |
| title_full_unstemmed | A portable analog lock-in amplifier for accurate phase measurement and application in high-precision optical oxygen concentration detection |
| title_short | A portable analog lock-in amplifier for accurate phase measurement and application in high-precision optical oxygen concentration detection |
| title_sort | portable analog lock in amplifier for accurate phase measurement and application in high precision optical oxygen concentration detection |
| topic | Portable analog lock-in amplifier phase shift measurement high accuracy optical oxygen detection |
| url | http://link.springer.com/article/10.1007/s13320-016-0335-7 |
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