Mumbai University > Electronics and Telecommunication > Sem3 > Electronic Instruments and Measurements

Marks: 4M

Year: Dec13

• Analysis of the waveform means determination of the values of amplitude, frequency and sometime phase angle of the harmonic components.

• A wave analyzer, in fact, is an instrument designed to measure relative amplitudes of single frequency components in a complex waveform. Basically, the instrument acts as a frequency selective voltmeter which is used to the frequency of one signal while rejecting all other signal components.

• The desired frequency is selected by a frequency calibrated dial to the point of maximum amplitude. The amplitude is indicated either by a suitable voltmeter or CRO.

• In other words, a wave analyzer, operated in the MHz range, is an instrument designed to measure relative amplitude of signal frequency components in a complex waveform. Basically, a wave instrument acts as a frequency selective voltmeter which is tuned to the frequency of one signal while rejecting all other signal components.

Wave analyzers are applied industrially in the field of reduction of sound and vibrations generated by rotating electrical machines and apparatus.