Bk-precision 889B - Manual Manuale Utente Scaricare il pdf (Pagina 11)

10

ESR Accuracy:

100

Ae

Xx

Ae

ESR ⋅±=

Cxf

LxfXx

⋅⋅⋅

=⋅⋅⋅=

π

π

2

1

2

ESR

Ae

= Ae of ESR

f : Test Frequency (Hz)

Xx : Measured Reactance Value (Ω)

Lx : Measured Inductance Value (H)

Cx : Measured Capacitance Value (F)

Accuracy applies when Dx (measured D value) ≤ 0.1

Example:

Test Condition:

Frequency : 1KHz

Level : 1Vrms

DUT : 100nF

Then

Ω=

−

⋅⋅⋅⋅

=

⋅⋅⋅

=

1590

9

10100

3

102

1

2

1

π

π

Cxf

Zx

Refer to the accuracy table, get

C

Ae

=±0.1%,

Ω±=⋅±= 59.1

100

Ae

Xx

Ae

ESR

D Accuracy:

100

Ae

Ae

D ±=

D

Ae

= Ae of D measurement value

Accuracy applies when Dx (measured D value) ≤ 0.1

When Dx > 0.1, multiply Dx by (1+Dx)

Example:

Test Condition:

Frequency : 1KHz

Level : 1Vrms

DUT : 100nF

Then

Ω=

−

⋅⋅⋅⋅

=

⋅⋅⋅

=

1590

9

10100

3

102

1

2

1

π

π

Cxf

Zx

Refer to the accuracy table, get

C

Ae

=±0.1%,

002.0

100

±=⋅±=

Ae

Ae

D

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 34 35

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