Study of Cathode Ray Oscilloscope

CATHODE RAY OSCILLOSCOPE

AIM:

To study the CRO and measure the frequency and amplitude.

MATERIALS AND TOOLS REQUIRED:

Solder, flux, knife/blade, soldering iron, desoldering pump and nose pliers.

THEORY:

The cathode ray oscilloscope (CRO) is a very useful and versatile laboratory instrument used for display, measurement and analysis of waveforms and other phenomenon in electrical and electronics circuits. Cathode ray oscilloscope is one of the most useful electronic equipment, which gives a visual representation of electrical quantities, such as voltage and current waveforms in an electrical circuit. It utilizes the properties of cathode rays of being deflected by an electric and magnetic fields and of producing oscillations on a fluorescent screen.

Observation Table:

PROCEDURE

• To study the waveforms, it is fed to the y – plates or X-plates. The size of the figure displayed on the screen, can be adjusted suitably by adjusting the gain controls. The time frequency can be changed, so as to accommodate one, two or more cycles of the signal. There is a provision in C.R.O to obtain a sine wave or a square wave or a triangular wave.

RESULT

The input and output frequencies are compared and voltage is found out.