HETERODYNE WAVE ANALYSER
This instrument is used in the MHz range. The input signal to be analysed is heterodyned to a higher IF by an internal local oscillator. Tuning the local oscillator shifts various signal frequency components into the pass band of the IF amplifier. The output of the IF amplifier is rectified and is applied to the metering circuit. The instrument using the heterodyning principle is called a heterodyning tuned voltmeter.
Block schematic of a heterodyne wave analyser
The block schematic of the wave analyser using the heterodyning principle is shown in fig. above. 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.
tags : heterodyne analyzer
heterodyne analyzer definition
semantic analyzer definition
heterodyne wave analyzer block diagram
principle of heterodyne analyzer
applications of heterodyne analyzer
advantages of heterodyne analyzer
disadvantages of heterodyne analyzer
block diagram of heterodyne analyzer
heterodyne analyzer and its uses
heterodyne analyzer circuit diagram
