Feedback compensated synchronous and multiplier type phasesensitive detectors |
| |
| Authors: | Modi H.O. Kumar V.J. Sankaran P. |
| |
| Affiliation: | Dept. of Electr. Eng., Indian Inst. of Technol., Madras; |
| |
| Abstract: | A feedback technique for phase sensitive detection (PSD) is developed, which is suitable for both synchronous and multiplier modes of implementation. The feedback-compensated PSD straightaway provides a DC output proportional to the amplitude of the measurand. The technique is very useful in a noisy environment where post-processing of the in-phase and quadrature components would otherwise deteriorate the stability, accuracy, and sensitivity. Quantitative comparison of the extent of compensation obtained experimentally with that estimated by PC-simulation indicates good agreement |
| |
| Keywords: | |
|
|
