Mathematical Operation Function; Fft Spectral Analysis - UNI-T UTD2052CL+ User Manual

2.6 Unit
Press UNIT to set the unit as "V" or "A", the default unit is V. After the unit is set, the unit
on channel status tag will change accordingly.

2.7 Mathematical operation function

Display results of CH1 & CH2 waveform mathematic operation (+、–、×、÷ ).
Function Menu
Type
Source1
Operator
Source2

2.8 FFT spectral analysis

Enter FFT (fast fourier transform) operation, the time domain (YT) signal can be converted
into frequency domain signal. At FFT operation, it is convenient to observe signals of the
following types:
● Measure harmonic content and distortion in the system
● Display noise characteristic in DC power supply
● Analyze vibration
Function Menu
Type
Source
Figure 2-10 Math Operation
Table 2-3：Math Menu
Setting Description
Math Mathematic operation (+、–、×、÷)
CH1 You can select signal source1 as CH1
CH2 You can select signal source2 as CH2
+ Source1+Source2
–
Source1–Source2
× Source1×Source2
÷ Source1÷ Source2
CH1 You can select signal source1 as CH1
CH2 You can select signal source2 as CH2
Table 2-4：FFT Menu Description
Setting Description
FFT FFT mathematical operation
CH1
You can select signal source as
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