244
Chapter 11
Specifications and Supplemental Information
Measurement Accuracy
Measurement Accuracy
NOTE
The following information is also applicable to the measurement accuracy of E4991A
Option 010.
Conditions for Defining Accuracy
Accuracy When Open/Short/Load Calibration is Performed
Temperature
23
±
5
°
C
Calibration plane
7-mm connector of test head
Measurement frequency points
Same as calibration points.
|Z|, |Y|
[%]
(see Figure 11-1 through Figure 11-4 for examples of
calculated accuracy)
θ
[rad]
L, C, X, B
[%]
R, G
[%]
D
at
at
Q
at
at
E
a
E
b
+
(
)
±
E
a
E
b
+
(
)
100
-----------------------
±
E
a
E
b
+
(
)
1
D
x
2
+
(
)
×
±
E
a
E
b
+
(
)
1
Q
x
2
+
(
)
×
±
D
x
E
a
E
b
+
100
------------------
tan
1
<
1
D
x
2
+
(
)
E
a
E
b
+
100
------------------
tan
1
D
x
E
a
E
b
+
100
------------------
tan
+−
------------------------------------------------------
±
D
x
0.1
≤
E
a
E
b
+
100
------------------
±
Q
x
E
a
E
b
+
100
------------------
tan
1
<
1
Q
x
2
+
(
)
E
a
E
b
+
100
------------------
tan
1
Q
x
E
a
E
b
+
100
------------------
tan
+−
------------------------------------------------------
±
10
E
a
E
b
+
------------------
Q
x
10
≥
≥
Q
x
2
E
a
E
b
+
100
------------------
±
Summary of Contents for E4991A
Page 6: ......
Page 24: ...18 Contents ...
Page 80: ...74 Chapter3 Setting Measurement Conditions Averaging Measurement Results ...
Page 220: ...214 Chapter9 Setup and Use of Control Management Functions System Recovery ...
Page 338: ...332 AppendixB Probe Station Connection Kit Option 010 OPEN SHORT LOAD Calibration ...
Page 428: ...422 AppendixD Menu References Menu References ...
Page 482: ...476 AppendixI Messages Wait measuring comp standard ...
