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3Capturing Data
74 Agilent 3000 Series Oscilloscopes User’s Guide
To select the Average acquisition mode:
1 Press Acquire
.
2 In the Acquire menu, press Acquisition until “Average” is selected.
3 Press Averages to select the desired number (2, 4, 8, 16, 32, 64, 128, or
256).
To select the Peak Detect acquisition mode
In Normal or Average acquisition modes, at longer horizontal time/div
settings, the oscilloscope’s analog- to- digital converter samples at a rate
that yields more samples than can be stored in a limited amount of
oscilloscope memory. Consequently, samples are thrown away (decimated),
and you can miss narrow excursions on a signal.
However, in the Peak Detect acquisition mode, acquisitions are made at
the fastest sample rate, and the minimum and maximum values for the
period associated with the actual sample rate are stored. This way, you
can capture narrow excursions on a signal at longer horizontal time/div
settings.
Figure 35 Peak Detect Waveform
- Agilent 3000 Series 1
- Oscilloscopes 1
- In This Book 4
- Contents 10
- Getting Started 17
- Getting Started 1 19
- Figure 1 Package Contents 19
- 1Getting Started 20
- Table 1 Power Cords 20
- Step 4. Input a waveform 23
- Using the Oscilloscope Menus 26
- Figure 5 Oscilloscope Display 28
- Step 7. Use Auto-Scale 29
- Step 8. Compensate probes 31
- High Frequency Compensation 32
- Displaying Data 35
- Using the Horizontal Controls 36
- Displaying Data 2 37
- Slow Scan Mode 38
- Zoomed window 40
- Zoomed window view 40
- X-Y Format 41
- To reset the trigger offset 42
- To specify a trigger holdoff 42
- To view the sample rate 43
- Using the Vertical Controls 44
- To adjust the vertical scale 45
- To specify channel coupling 46
- DC Coupling 47
- DC Coupling Status 47
- AC Coupling 47
- AC Coupling Status 47
- To specify a bandwidth limit 48
- 20 MHz Bandwidth 49
- Bandwidth ON Status 49
- Bandwidth limit OFF 49
- Probe Attenuation 50
- To use a digital filter 51
- To invert a waveform 51
- 2 Displaying Data 52
- Using Math Function Waveforms 53
- FFT Resolution 56
- To save a reference waveform 57
- To change the grid 58
- To use waveform persistence 59
- To clear the display 59
- To invert screen colors 60
- Capturing Data 61
- Sampling Theory 62
- Aliasing 62
- Oscilloscope Rise Time 65
- Memory Depth and Sample Rate 67
- Choosing the Sampling Mode 68
- Choosing the Acquisition Mode 72
- Capturing Data 3 73
- To adjust the trigger level 76
- To force a trigger 77
- To set up edge triggers 78
- To set up video triggers 80
- To set the trigger sweep 82
- To set the trigger coupling 82
- To record waveforms 83
- To play-back waveforms 84
- To store recorded waveforms 86
- Making Measurements 87
- Vpp (Peak-to-Peak Voltage) 90
- Overshoot 92
- Preshoot 92
- Frequency 93
- Rise Time 94
- Fall Time 94
- Positive Pulse Width 95
- Negative Pulse Width 95
- Positive Duty Cycle 95
- Negative Duty Cycle 95
- Delay Between Rising Edges 96
- Delay Between Falling Edges 96
- Counter (Frequency) 96
- Making Measurements 4 97
- Making Cursor Measurements 98
- To save and load waveforms 102
- Supported Printers 110
- Oscilloscope Utility Settings 111
- To enable/disable mask tests 112
- To run/stop a mask test 112
- To set up masks 114
- Setting IO Parameters 115
- Setting the Menu Language 115
- Turning Sound ON or OFF 116
- Displaying System Information 116
- To perform screen tests 117
- To perform key tests 117
- Running Self-Calibration 118
- Specifications 120
- Characteristics 121
- →2 ), Hardware Counter 124
- Table 12 Power Requirements 125
- Table 14 Other 125
- Testing Performance 128
- Before Testing Performance 129
- DC Gain Accuracy Test 130
- Procedure 131
- Specification 136
- Equipment Required 136
- Connections 136
- Service 8 139
- Vpp reading 141
- Performance Test Record 144
- Contacting Agilent 146
- Warnings 147
- To clean the instrument 148
- Safety Symbols 149
- ASafety Notices 150
- *D3000-97017* 156
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