Agilent Technologies 1000A Guia do Utilizador descarregar pdf (Página 68)

3Capturing Data

68 Agilent 1000 Series Oscilloscopes User’s Guide

However, digital signals have frequency components above the fundamental

frequency (square waves are made up of sine waves at the fundamental

frequency and an infinite number of odd harmonics), and typically, for

1 Ghz bandwidths and below, oscilloscopes have a Gaussian frequency

response.

Figure 27 Theoretical Brick-Wall Frequency Response

-3dB

Attenuation

Frequency

0dB

1 2 ... 63 64 65 66 67 68 69 70 71 72 73 ... 157 158

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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