NF ZA57630, Инструкция по эксплуатации

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5.8 Measurement Accuracy
5
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30
ZA57630
5.8.4 Measurement Accuracy of Measurement Parameters Other Than Z and
θ
(Measurement Modes IMPD
−EXT, IMPD−3T and IMPD
−
2T)
Calculate the measurement accuracy from the impedance measurement accuracy as follows.
Here, Q
X
is the measurement value of Q, D
X
is the measurement value of D, and θ
X
is the
measurement value of θ. It is also acceptable to calculate the θ
X
used for the accuracy
calculation by either (90° − tan
−1
|1/Q
X
|) or (90° − tan
−1
|D
X
|).
Parameter Measurement accuracy (supplementary value)
|Y|
，
ε
S
，
µ
S
±A
Z
[%]
L
P
，
L
S
，
X
，
ε
S
'
，
µ
S
'
±A
Z
[%] (|Q
X
|≥ 10)
，
±A
Z
/ sinθ
X
[%] (|Q
X
|< 10)
C
P
，
C
S
，
B ±A
Z
[%] (|D
X
|≤ 0.1)
，
±A
Z
/ sinθ
X
[%] (|D
X
|>0.1)
R
P
，
R
S
，
G
，
ε
S
"
，
µ
S
"
±A
Z
[%] (|Q
X
|≤ 0.1)
，
±A
Z
/ cosθ
X
[%] (|Q
X
|>0.1)
Q ±Qx
2
×P
e
/ (1−|Q
X
|×P
e
) (|Q
X
|≥ 10 or |Q
X
|×P
e
≤ 0.1)
Here, phase angle error P
e
[rad] = P
Z
[° ] / 57.3.
The measurement accuracy of Q is the actual value and not the %
value.
D ±(P
Z
[° ] / 57.3.) (|D
X
|≤ 0.1)
The measurement accuracy of D is the actual value and not the %
value.
5.8.5 Measurement Accuracy of Measurement Parameters Other Than Gain and
θ
(Measurement Mode G
−PH)
Calculate the measurement accuracy from the phase measurement accuracy as follows. Here,
P
G
is the measurement accuracy [°] of θ.
Parameter Measurement accuracy (supplementary value)
GD
±
P
G
360×APT [s]
Here, APT is the aperture frequency (
⊿
f [Hz]), and is aperture
setting
*1
× sweep measurement frequency interval.
*1: "Aperture setting" is a parameter that is set in this instrument for group delay (GD)
measurement.