4
Oscilloscopes
Introduction • Cathode ray oscilloscope • Block diagram of a CRO • Cathode ray tube (CRT) • Graticules • Electrostatic deflection sensitivity • Different controls in a CRO • Time base generators • Triggered mode • Neon time base circuit • Time base circuit for a general-purpose CRO • Lissajous figures • Types of CRO probes • High-frequency CRO considerations • Delay lines in CROs • Applications of CRO • Summary
4.1 INTRODUCTION
Oscilloscopes are also used very widely in electronic measurements and instrumentation systems. Unlike other measuring instruments, the signal being measured can be visually seen on the screen. The characteristics of the signals, like amplitude, frequency, phase, time period, duty cycle, etc. can be ...
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