Category: SIGNAL CONDITIONING

Synchronous Modulation and Demodulation

Synchronous Modulation and Demodulation: Synchronous Modulation and Demodulation – Low dc current may be transformed into a high voltage dc by simple chopper action. Although an inductive type transformation process is required, the out­put dc may be obtained without rectifying devices. Figure 14.39 shows a circuit function of a synchronous vibrator. Contacts a and b […]

Magnetic Modulator

Magnetic Modulator: Magnetic Modulator – The most reliable substitutes for electromechanical choppers are magnetic modulators. These devices reach a null stability as low as 10 μV, but their response time is often less than 2 Hz and the ambient temperature range is restricted. The 3-leg saturable reactor, shown in Fig. 14.32 falls within the cat­egory […]

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