Agilent Technologies 1000A Guide de l'utilisateur Page 72
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3Capturing Data
72 Agilent 1000 Series Oscilloscopes User’s Guide
Memory Depth and Sample Rate
The number of points of oscilloscope memory is fixed (except when
divided between channel pairs), and there is a maximum sample rate
associated with oscilloscope’s analog- to- digital converter; however, the
actual sample rate is determined by the time of the acquisition (which is
set according to the oscilloscope’s horizontal time/div scale).
sample rate = number of samples / time of acquisition
For example, when storing 10 us of data in 10,000 points of memory, the
actual sample rate is 1 GSa/s.
Likewise, when storing 1 s of data in 10,000 points of memory, the actual
sample rate is 10 kSa/s.
The actual sample rate, is displayed in the horizontal Horizontal menu
(see “To view the sample rate” on page 42).
The oscilloscope achieves the actual sample rate by throwing away
(decimating) unneeded samples.
- Agilent 1000 Series 1
- Oscilloscopes 1
- In This Book 4
- Contents 10
- Index 153 12
- Getting Started 17
- Step 4. Input a waveform 21
- Step 5. Use Auto-Scale 22
- Getting Started 1 23
- Step 6. Compensate probes 24
- High Frequency Compensation 25
- DSO1024A 26
- 1Getting Started 30
- Figure 8 Oscilloscope Display 30
- Security loop 33
- Hole for Kensington lock 33
- Displaying Data 35
- Scale knob 36
- Position knob 36
- Slow Scan Mode 38
- Zoomed window 40
- Zoomed window view 40
- X-Y Format 41
- To view the sample rate 42
- Math REF 43
- To adjust the vertical scale 44
- To specify channel coupling 45
- DC Coupling 46
- DC Coupling Status 46
- AC Coupling 46
- AC Coupling Status 46
- To specify a bandwidth limit 47
- Bandwidth limit OFF 47
- 20 MHz Bandwidth 48
- Bandwidth ON Status 48
- To use a digital filter 49
- To invert a waveform 50
- Displaying Data 2 51
- To specify the channel units 52
- Math Scale 53
- FFT Resolution 56
- To save a reference waveform 57
- Changing the Display Settings 59
- To adjust waveform intensity 60
- To clear the display 60
- To set waveform persistence 60
- To change the grid 61
- To adjust the grid brightness 62
- To invert screen colors 62
- To select screen persistence 63
- 2 Displaying Data 64
- Capturing Data 65
- Sampling Theory 66
- Aliasing 66
- Oscilloscope Rise Time 69
- Real-Time Sampling 71
- Memory Depth and Sample Rate 72
- Choosing the Acquisition Mode 73
- To record waveforms 78
- To play-back waveforms 79
- To select the start frame 80
- To select the current frame 80
- To select the end frame 80
- To store recorded waveforms 81
- To load a recording 82
- To import/export recordings 82
- To adjust the trigger level 83
- Trigger level knob 83
- To force a trigger 84
- To set up edge triggers 85
- To set up video triggers 87
- Capturing Data 3 89
- To set up pattern triggers 90
- To set up alternate triggers 91
- To set the trigger sweep 92
- To set the trigger coupling 92
- To specify a trigger holdoff 95
- 3Capturing Data 96
- Making Measurements 97
- Vmax (Maximum Voltage) 100
- Overshoot 102
- Preshoot 102
- Time Measurements 103
- Fall Time 104
- Frequency 104
- Rise Time 104
- Positive Pulse Width 105
- Negative Pulse Width 105
- Positive Duty Cycle 105
- Negative Duty Cycle 105
- Delay Between Rising Edges 106
- Delay Between Falling Edges 106
- Phase Between Rising Edges 107
- Phase Between Falling Edges 107
- Counter (Frequency) 108
- Making Cursor Measurements 109
- Saving and Recalling Data 114
- Using the Disk Manager 118
- To create new folders 119
- To edit folder/file names 120
- To delete folders 121
- To rename folders 121
- To delete files 121
- To recall files 122
- To rename files 122
- To display disk information 122
- USB Device Port 123
- USB Host Port 123
- 1 Press [Print] 126
- Oscilloscope Utility Settings 127
- Displaying System Information 128
- Turning Sound ON or OFF 128
- To enable/disable mask tests 131
- To run/stop a mask test 132
- To set up masks 133
- To save a mask 135
- To recall a mask 135
- To export/import masks 135
- To set up the screen saver 136
- Running Self-Calibration 138
- Overvoltage Category 140
- Pollution Degree 140
- Pollution Degree Definitions 140
- Measurement Category 141
- Specifications 142
- Characteristics 143
- Table 11 Measurement Features 147
- Table 13 Storage 148
- Table 14 I/O 148
- Table 16 Power Requirements 149
- Warnings 151
- Safety Symbols 152
- *54130-97014* 158
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