Chapter VII Mathematical Operation
54
Chapter VII Mathematical Operation
The 4456 series oscilloscope can realize multiple operations of channel waveform, including mathematical
operation, FFT and advanced mathematical operation.
Press down
【
Math
】
key on the front panel, and open the menu:
Fig. 7.1 Math Menu
7.1
Dual Wfm Math
Click [Dual Wfm Math] menu key, and open the Dual Wfm Math setup menu:
Fig. 7.2 Dual Wfm Math Menu
1st source and 2nd source: It is used to set 2 sources for mathematical operation, and the analog channels CH1
CH4 can be selected.
Operator: It can be used to set the mathematical operation type, including off, +,
-
, ×, ÷. If the Operator is not
set to off, the mathematical operation status bar will be displayed at the bottom of the screen, displaying the
vertical scale and operation expression of the operation waveform:
Fig. 7.3 Dual Wfm Math Status Bar
Vertical Scale: After clicking the menu key, rotate the Multipurpose b to set the vertical scale of the operation
waveform.
Vertical Offset: After clicking the menu key, rotate the Multipurpose b to set the vertical offset of the operation
waveform.
7.2
FFT
The FFT can convert time domain signals into frequency domain signals. The FFT operation can be used to
facilitate the following operations:
1)
Measure the harmonic component and distortion in the system.
2)
Measure noise characteristics in DC power supply.
3)
Analyze the vibration.
Instructions: The signal with DC component or offset may cause an error or offset in the
Summary of Contents for 4456 Series
Page 10: ...VIII...
Page 55: ...Chapter V Trigger System 45 Fig 5 51 RF Test Signal Example...
Page 69: ...Chapter VII Mathematical Operation 59 Fig 7 10 Advanced Math Example...
Page 71: ...Chapter VIII Display System 61 Fig 8 3 Wfm Palette Menu Fig 8 4 Normal Palette...
Page 72: ...Chapter VIII Display System 62 Fig 8 5 Inverted Palette Fig 8 6 Temperature Palette...
Page 75: ...Chapter VIII Display System 65 Fig 8 12 XY Display Example...
Page 165: ...Chapter XI Protocol Analyzer Option 155 Fig 11 242 1553 Trigger and Analysis Example...