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 |