Agilent Technologies 4285A Manual do Utilizador descarregar pdf (Página 6)

6

|Z|, |Y|, L, C, R, X, G, and B accuracy

|Z|, |Y|, L, C, R, X, G, and B accuracy A

e

is given as

A

e

= ±(A

n

+ A

c

)  K

t

[%]

where:

A

n

= Basic accuracy equation given from the A

1

to A

16

shown in Table 1-1. The applicable

frequency range and impedance range of

equations A

1

to A

16

are shown in Figure 1-3

and Figure 1-4. (Refer to Basic Accuracy

Equations on page 7.)

A

c

= Cable length factor (Refer to Cable Length

Factor on page 10.)

K

t

= Temperature factor (Refer to Temperature

Factor on page 10.)

L, C, X, and B accuracies apply when D

x

(measured

D value) ≤ 0.1.

When D

x

> 0.1, multiply A

e

by 1 + D

2

x

for L, C, X,

and B accuracies.

R and G accuracies apply when Q

x

(measured Q

value) ≤ 0.1.

When Q

x

> 0.1, multiply A

e

by 1 + Q

2

x

for R and G

accuracies. G accuracy given by the equation above

applies to the G-B combination only.

D accuracy

D accuracy D

e

is given as

A

e

D

e

= ±

100

where:

A

e

= |Z|, |Y|, L, C, R, X, G, and B accuracy

D accuracy applies when D

x

(measured D value) ≤ 0.1.

When D

x

> 0.1, multiply D

e

by (1 + D

x

).

Q accuracy

Q accuracy Q

e

is given as

Q

2

x

 D

e

Q

e

= ±

1  Q

x

 D

e

where:

Q

x

= Measured Q value

D

e

= D accuracy

Q accuracy applies when Q

x

 D

e

<1.

θ Accuracy

θ accuracy θ

e

is given as

180  A

e

θ

e

= ±

π  100

[deg]

where:

A

e

= |Z|, |Y|, L, C, R, X, G, and B accuracy

G Accuracy

G accuracy Ge is given as

where:

B

x

= Measured B value [S]

C

x

= Measured C value [F]

L

x

= Measured L value [H]

D

e

= D accuracy

f = Test frequency [Hz]

G accuracy applies when D

x

(measured D value) ≤ 0.1.

G accuracy given by the equation above applies to

the C

p

-G and L

p

-G combinations only.

G

e

=

±B

x

 D

e

[S]

(

B

x

=

2 πfC

x

=

1

2 πfL

x

)

`b

`b

SgLabs

www.sglabs.it

email: [email protected]

tel. +39 0755149360

SgLabs

www.sglabs.it

email: [email protected]

tel. +39 0755149360

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