The principle of a virtual multi-channel lock-in amplifier and its application to magnetoelectric measurement system
| dc.creator | Lu, Jun | |
| dc.creator | Pan, De-An | |
| dc.creator | Qiao, Lijie | |
| dc.date | 2007-04-23 | |
| dc.date.accessioned | 2026-07-07T09:19:24Z | |
| dc.date.available | 2026-07-07T09:19:24Z | |
| dc.description | This letter presents principles and applications of a virtual multi-channel lock-in amplifier that is a simple but effective method to recover small ac signal from noise with high presison. The fundamentals of this method are based on calculation of cross-correlation function. Via this method, we successfully built up a magnetoelectric measurement system which can perform precise and versatile measurements without any analog lock-in amplifier. Using the virtual multi-channel lock-in amplifier, the output of the magnetoelectric measurement system is extensively rich in magnetoelectric coupling behaviors, including coupling strength and phase lag, under various dc bias magnetic field and ac magnetic field. | |
| dc.description | 11 pages, 6 figures. To be submitted to Rev. Sci. Instrm | |
| dc.identifier | https://arxiv.org/abs/0704.2990 | |
| dc.identifier | http://arxiv.org/abs/0704.2990 | |
| dc.identifier | Meas. Sci. Technol., 19, 045702-6(2008) | |
| dc.identifier | doi:10.1088/0957-0233/19/4/045702 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/154379 | |
| dc.subject | Instrumentation and Detectors | |
| dc.title | The principle of a virtual multi-channel lock-in amplifier and its application to magnetoelectric measurement system | |
| dc.type | text |