Agilent Technologies InfiniiVision 5000 Series Guida Utente Pagina 170
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170 5000 Series Oscilloscope User’s Guide
4 Making Measurements
The following FFT spectrum was obtained by connecting the
front panel Probe Comp signal (~1.2 kHz) to channel 1. Set
sweep speed to 5 ms/div, vertical sensitivity to 500 mV/div,
Units/div to 10 dBV, Offset to -34.0 dBV, Center frequency to
5.00 kHz, frequency Span to 10.0 kHz, and window to Hanning.
Figure 25 FFT measurements
FFT Measurement Hints
The number of points acquired for the FFT record is 1000 and
when frequency span is at maximum, all points are displayed.
Once the FFT spectrum is displayed, the frequency span and
center frequency controls are used much like the controls of a
spectrum analyzer to examine the frequency of interest in
greater detail. Place the desired part of the waveform at the
center of the screen and decrease frequency span to increase
the display resolution. As frequency span is decreased, the
number of points shown is reduced, and the display is
magnified.
While the FFT spectrum is displayed, use the Math and Cursors
keys to switch between measurement functions and frequency
domain controls in FFT menu.
- Agilent InfiniiVision 1
- 5000 Series 1
- Oscilloscopes 1
- In This User’s Guide… 3
- Contents 10
- Getting Started 15
- To inspect package contents 16
- InfiniiVision 5000 Series 17
- Oscilloscope 17
- 1Getting Started 18
- Table 2 Accessories available 18
- To adjust the handle 20
- To power-on the oscilloscope 22
- Getting Started 1 23
- Table 3 Power Cords 23
- The remote interface 24
- To establish a LAN connection 25
- To use the Web interface 28
- Identify Function 31
- Setting a password 32
- Perfectly compensated 38
- Over compensated 38
- Under compensated 38
- To calibrate the probes 39
- Passive Probes Supported 39
- Active Probes Supported 40
- Using Quick Help 41
- Quick Help Languages 42
- Quick Help Updates 42
- Front-Panel Controls 43
- Conventions 45
- Front Panel Controls 47
- (differences only) 51
- Interpreting the display 52
- Front-Panel Operation 53
- To make a single acquisition 55
- To pan and zoom 56
- Using AutoScale 57
- Example exercise 57
- Passive Probes 58
- Active Probes 59
- Using the channels 60
- Turning channels off 61
- Measurement Hints 62
- Main mode 65
- Zoom mode 67
- Roll mode 70
- To make cursor measurements 72
- Using Labels 74
- To define a new label 75
- To print the display 78
- To set the clock 78
- Year set Month set Return to 79
- Day set Hour set Minute set 79
- To set up the screen saver 80
- To perform service functions 82
- User Calibration 82
- To perform User Cal 83
- User Cal Status 84
- Self Test 86
- About Oscilloscope 87
- Triggering the Oscilloscope 89
- Triggering Features 90
- Auto mode 92
- Normal mode 93
- To select trigger Coupling 94
- To se t Ho l dof f 95
- The External Trigger input 97
- Trigger Types 100
- To use Edge triggering 101
- Trigger level adjustment 102
- To use Pulse Width triggering 103
- To use Pattern triggering 106
- To use CAN triggering 108
- To use I 112
- C triggering 112
- To use LIN triggering 118
- To use SPI triggering 121
- 3 Triggering the Oscilloscope 122
- To use Duration triggering 127
- To use TV triggering 130
- Example exercises 134
- Alternate Triggering 135
- To trigger on all sync pulses 136
- Triggering the Oscilloscope 3 141
- To use UART/RS232 triggering 142
- The Trigger Out connector 147
- Making Measurements 149
- To use the XY horizontal mode 150
- Signal must 151
- 4 Making Measurements 154
- Math Functions 155
- Math scale and offset 156
- Multiply 157
- Figure 20 Multiply 158
- Subtract 159
- Figure 21 Subtract 160
- Differentiate 161
- Integrate 163
- Channel 1 164
- FFT Measurement 165
- True frequency component 166
- Aliased frequency component 166
- FFT Operation 167
- softkey, then turn 168
- FFT Scale FFT Offset 168
- FFT Measurement Hints 170
- Square Root 172
- Making Measurements 4 173
- Figure 26 Square Root 173
- Cursor Measurements 174
- Cursor Examples 178
- Automatic Measurements 181
- Preshoot and Overshoot 182
- To set measurement thresholds 184
- Time Measurements 186
- Duty Cycle 187
- Frequency 187
- Fall Time 188
- Rise Time 189
- X at Max 189
- Delay and Phase Measurements 190
- Source 1 191
- Source 2 191
- Voltage Measurements 193
- Std Deviation 195
- Preshoot 198
- Overshoot 199
- Displaying Data 201
- Pan and Zoom 202
- Antialiasing 204
- Using the XGA video output 204
- Display Settings 205
- Grid intensity 206
- Vectors (connect the dots) 206
- Using Vectors (Display menu) 207
- Acquisition Modes 209
- Normal Mode 210
- Peak Detect Mode 210
- High Resolution Mode 210
- Averaging Mode 211
- To use the Averaging mode 212
- Displaying Data 5 213
- Realtime Sampling Option 214
- Using Serial Decode 216
- To decode I 217
- Interpreting Decoded I 219
- To decode SPI data 221
- Interpreting Decoded SPI Data 224
- To decode CAN data 226
- Sample Point 228
- Interpreting Decoded CAN Data 229
- CAN Totalizer 231
- 5 Displaying Data 232
- To decode LIN data 233
- 3 Specify the LIN signal: 234
- Interpreting Decoded LIN Data 237
- To decode UART/RS232 data 239
- UART/RS232 Totalizer 245
- HF Reject 246
- LF Reject 247
- Noise rejection 247
- ∞ Persist (infinite 250
- ∞ Persist is 250
- How AutoScale Works 251
- Saving and Printing Data 253
- Print options 254
- Selecting print options 255
- Supported Printers 256
- Saving and Printing Data 6 257
- Saving oscilloscope data 258
- Selecting a file name 260
- Choosing save settings 263
- Length Control 264
- File explorer 266
- To use the file explorer 268
- 6 Saving and Printing Data 270
- Reference 271
- Software and firmware updates 272
- To set up the I/O port 273
- To return the instrument 274
- To clean the oscilloscope 274
- Binary Data (.bin) 275
- Waveform Header 276
- Waveform Data Header 279
- Examples of Binary Files 280
- 7 Reference 282
- Agilent Technologies 283
- Power Requirements 284
- Measurement Category 285
- Environmental Conditions 287
- Specifications 288
- Acknowledgements 288
- Contact us 289
- Numerics 291
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