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Explain Heterodyne type wave analyzer and its applications.
written 2.9 years ago by |
Answer:
The block schematic of the wave analyser using the heterodyning principle is shown in fig. below. The operating frequency range of this instrument is from 10 kHz to 18 MHz in 18 overlapping bands selected by the frequency range control of the local oscillator. The bandwidth is controlled by an active filter and can be selected at 200, 1000, and 3000 Hz.
The input signal is given to the instrument with the help of a probe connector which contains a unity-gain isolation amplifier.