Z| vs l, c chart, Accuracy definition – GW Instek LCR-8000G Series User Manual
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APPENDIX
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|Z| vs L, C Chart
Conversion method:
CF→|Z|
C
Freq.
Z
LF→|Z|
LCR-8000G Series User Manual
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Accuracy Definition
|Z|, |Y|
High Impedance Ae[%]=±((A+0.0000001*Zx)*Kv*Kt)
Low Impedance Ae[%]=±((A+0.1/Zx)*Kv*Kt)
L, C, X, B
High Impedance when D < 0.1
Ae[%] = ± (( A + 0.0000001*Zx ) * Kv * Kt)
High Impedance when D ≥ 0.1
Ae[%] = ± (((A + 0.0000001*Zx ) * Kv*Kt)*
(
)
2
1 D
+
)
Low Impedance when D < 0.1
Ae[%] = ± (( A + 0.1/Zx ) * Kv * Kt)
Low Impedance when D ≥ 0.1
Ae[%] = ± ((( A + 0.1/Zx ) * Kv * Kt) *
(
)
2
1 D
+
)
R, G
High Impedance when Qx < 0.1
Ae[%] = ± (( A + 0.0000001*Zx ) * Kv * Kt)
High Impedance when Qx ≥ 0.1
Ae[%] = ± (((A + 0.0000001*Zx ) * Kv*Kt)*
(
)
2
1 Q
+
)
Low Impedance when Qx < 0.1
Ae[%] = ± (( A + 0.1/Zx ) * Kv * Kt)
Low Impedance when Qx ≥ 0.1
Ae[%] = ± ((( A + 0.1/Zx ) * Kv * Kt) *
(
)
2
1 Q
+
)
D
± ( Ae/100) when D ≤ 0.1
± ( (Ae/100) * (1+D
2
)) when D > 0.1
Q
± (((Qx
2
*De) / (1±Qx*De)) when (Qx*De)< 1
Ɵ
± ((180*|Z|Ae[%]) / (
π/100))
Convention
A
Accuracy taken from the Accuracy chart
Zx
Measured value of unknown component
Kv
Test Voltage factor
Level
Kv
Level
Kv
≥
1.250
1.2
≥
0.078
2
≥
0.625
1
≥
0.039
2.5
≥
0.313
1.2
≥
0.02
5
≥
0.156
1.5
≥
0.010
10
Kt
Temperature factor
Temperature Kt
Temperature Kt
8-18°C
2
28-35°C
2
18-28°C
1
Qx
Measured Q value
De
Relative D accuracy