Block Diagram of CRO, Cathode Oscilloscope Block Diagram
BLOCK DIAGRAM OF CRO -- CATHODE RAY OSCILLOSCOPE BLOCK DIAGRAM
Heart of CRO I cathode ray tube (CRT).
1) The input signal which is to be displayed is given to the vertical amplifier.
2) The input signal which is to be displayed is given the vertical amplifier.
3) At the same time the output of vertical amplifier activates trigger circuit.
4) The trigger circuit activates time base generator.
5) The output of a time base generator is a saw tooth waveform which is applied to horizontal amplifier.
6) The voltage from delay line is applied to vertical plates of CRT.
7) The beam of electrons coming from the cathode of CRT experiences the vertical deflection by these plates.
8) The voltage from horizontal amplifier is applied to the horizontal plate of CRT.
9) The movement of beam in X-direction is due to this plate.
10) The beam strikes the screen of the CRT which converts kinetic energy of electrons to light energy.