Hioki IM7580, Instruction Manual

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286
Measurement Accuracy
Accuracy of inductor Ls = 150 nH
Example: Measurement frequency = 100 MHz, measurement signal level=+1 dBm, measurement
speed = FAST
1
Z and θ of the sample are measured and we assume that the measurement values are as
follows.
Z = 94.292
Ω
θ = 88.25°
2
Obtain Ea.
From measurement conditions and accuracy specification:
Er = 0.09
Ea = 0.5 + Er = 0.59
3
Obtain Zs.
From measurement conditions and accuracy specification:
Zsr = 13.5
F = 100
(measurement frequency [MHz])
With the above, Zs is calculated as follows:
Zs = 20 + Zsr + 0.5 × F
= 20 + 13.5 + 0.5
×
100
= 83.5
[m
Ω
]
4
Obtain Yo.
From measurement conditions and accuracy specification:
Yor = 7.5
F = 100
(measurement frequency [MHz])
With the above, Yo is calculated as follows:
Yo = 30 + Yor + 0.15 × F
= 30 + 7.5 + 0.15 × 100
= 52.5
[µS]
5
Obtain Eb with Zs, Yo and measurement value Zx.
Eb
Zs
Zx
Yo Zx = + ⋅





×
100
= × + ×





×
83 5
1000
1
94 292
52 5
1000000
94 292 100
.
.
.
.
[%]
= (0. 0.004950) × 100
= 0.5836