6. Various phase-sensitive detectors
6.1 Diode detector
When dealing with constant-frequency signals, we can use a circuit reminiscent of a diode modulator (figure 32a ).
The voltages V1 and applied to the symmetrical detector are in phase opposition. The voltage V2 from e 2 is then placed in series with V1 and ; the vector diagram in figure 32b is obtained.
If the voltage e 1 were...
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Various phase-sensitive detectors
Phase measurement on signals embedded in noise
References
- (1) - HANSON (R.C) - Narrowband noise immunity in a broadband gain phase meter - (Immunité au bruit à bande étroite dans un phasemètre à large bande). Hewlett‐Packard J., 23, n° 9, p. 17-20, mai 1972.
- (2) - DART (R.) - Impédance mécanique et applications à l'étude dynamique des structures. - Spectral Dynamics. ...
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