Question
Download Solution PDFThe shape of the time base signal of a CRO is generally a ______.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe signal generated by the time-base circuitry of the CRO is basically a saw-tooth waveform.
Cathode-Ray Oscilloscope (CRO):
CRO is a very fast X-Y plotter that shows the input signal versus another signal or versus time.
Applications:
The CROs are used to analyze the waveforms, transient, phenomena, and other time-varying quantities from a very low-frequency range to the radio frequencies.
Time Base Generator:
- It generates an output voltage or current waveform, which varies linearly with time.
- The signal generated by the time-base circuitry of the CRO is basically a saw-tooth waveform.
- The horizontal velocity of a time base generator must be constant.
- The displayed signal should be varied with time.
- It makes the signal sweep the beam horizontally across the screen.
- Then the displayed signal varies linearly with time.
- Hence the voltage is called Sweep Voltage.
- The Time Base Generators are called Sweep Circuits.
The time base signal in CRO is a Sawtooth signal.
Applications:
Time Base Generators are used in
- Cathode-Ray Oscilloscope.
- Televisions
- RADAR displays
- Precise time measurement systems
- Time modulation, etc.
Important points:
- In CRO, the time base signal is applied to X-plates in the X-Y mode operation only.
- In y-t mode operation, the Time-base signal is not connected.
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