20-10-2010, 01:03 PM
CROs.ppt (Size: 159 KB / Downloads: 518)
Introduction:
Look and play
Read instructions
Break into smaller parts
Decide on a simple measurement
Increase your level of difficulty
Record pathway. How you got there.
Store directions and short-cuts
Cathode Ray Oscilloscope
Popular instrument to show time, voltage both DC and AC. Shows Volts / Time.
Display waveforms. Spectrum scope shows volts to Frequency
Cathode (-ve ) is heated, emits electrons, accelerated toward a (+ve) fluorescent screen. Intensity grid, Focus grid, Accelerating anode. (Electron gun)
Horizontal deflection plates.
Vertical deflection plates