NF FRA5097, Instruction Manual

Page: 78 / 192

4.1 Overview of measurement and processing
FRA5097 4-4
4.1.2 Analysis mode
The analysis mode specifies the method in which the measurement data (V1, V2 and
θ
) are to be
analyzed and processed. There are four (4) analysis modes, i.e., (CH1/CH2), (CH2/CH1), (CH1)
and (CH2), one of which should be set through the menu [Graph][FORMAT][ANALYSIS
MODE].
The result of analysis is given by gain and phase for the analysis modes, (CH1/CH2) and
(CH2/CH1), and by voltage amplitude and phase for the analysis modes, (CH1) and (CH2).
Table 4-1 List of analysis modes
Measurement
mode
Analysis mode Result of analysis
Gain = |V
1
|/|V
2
|
(CH1/CH2)
θ
=
θ
1
− θ
2
Gain = |V
2
|/|V
1
|
(CH2/CH1)
θ
=
θ
2
− θ
1
Amplitude = |V
1
|
(CH1)
θ
=
θ
1
− θ
2
Amplitude = |V
2
|
|V
1
|,
θ
1
|V
2
|,
θ
2
(CH2)
θ
=
θ
2
− θ
1
4.1.3 Graph units setting
The display units setting is selected for gain and impedance.
The graph display units are determined by [UNITS] and [ANALYSIS MODE] setting. Display
units are indicated in Table4-2.
Impedance display is fixed at voltage for CH1 input and current for CH2 input.
Table 4-2 Display units
ANALYSIS GAIN IMPEDANCE
CH1 GAIN[Vrms]
GAIN[dBV]*1
GAIN[Vrms]
GAIN[dBV]*1
CH2 GAIN[Vrms]
GAIN[dBV]*1
GAIN[Arms]
GAIN[dBA]*2
CH1/CH2 GAIN[E+00]
GAIN[dB]
IMPD[
Ω
]
IMPD[dB
Ω
]*3
CH2/CH1 GAIN[E+00]
GAIN[dB]
ADMT[S]
ADMT[dBS]*4
Notes
1. 1 Vrms = 0 dBv
2. 1 Arms = 0 dBA
3. 1
Ω
= 0 dB
Ω
4. 1 S = 0 dBs