B&K Precision 886 - Manual User Manual
Page 61

58
Ω
=
⋅
⋅
⋅
⋅
=
⋅
⋅
⋅
=
−
1590
10
100
10
2
1
2
1
9
3
π
π
Cx
f
Zx
Refiriéndose a la tabla de precisión, obtenemos C
Ae
=±0.2%,
002
.
0
100
±
=
⋅
±
=
Ae
D
Ae
Precisión de Q:
De
Qx
De
Qx
Ae
Q
⋅
⋅
±
=
1
2
Q
Ae
= Ae de |Zx|
Qx : Valor del factor de calidad medido
De : Precisión relativa de De
La precisión aplica si
1
<
⋅
De
Qx
Ejemplo:
Condición de prueba:
Frecuencia : 1KHz
Nivel
: 1Vrms
Velocidad : Lenta
DUT
: 1mH
Entonces
Ω
=
⋅
⋅
⋅
=
⋅
⋅
⋅
=
−
283
.
6
10
10
2
2
3
3
π
π
Lx
f
Zx
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