Bk-precision 889B - Manual Uživatelský manuál stáhnout pdf (Strana 10)

9

Z Accuracy:

As shown in table 1.

C Accuracy:

Cxf

Zx

⋅⋅⋅

=

π

2

1

C

Ae

= Ae of C

f : Test Frequency (Hz)

Cx : Measured Capacitance Value (F)

|Zx| : Measured Impedance Value (Ω)

Accuracy applies when Dx (measured D value) ≤ 0.1

When Dx > 0.1, multiply C

Ae

by

2

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%

L Accuracy:

LxfZx ⋅⋅⋅=

π

2

L

Ae

= Ae of L

f : Test Frequency (Hz)

Lx : Measured Inductance Value (H)

|Zx| : Measured Impedance Value (Ω)

Accuracy applies when Dx (measured D value) ≤ 0.1

When Dx > 0.1, multiply L

Ae

by

2

1 Dx+

Example:

Test Condition:

Frequency : 1KHz

Level : 1Vrms

DUT : 1mH

Then

Ω=

−

⋅⋅⋅=

⋅⋅⋅

=

283.6

3

10

3

102

2

π

π

LxfZx

Refer to the accuracy table, get L

Ae

= ±0.5%

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 34 35

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