Agilent Technologies DC110 Especificações descarregar pdf (Página 77)

dataTec ▪ Ferdinand-Lassalle-Str. 52 ▪ 72770 Reutlingen ▪ Tel. 07121 / 51 50 50 ▪ Fax 07121 / 51 50 10 ▪ [email protected] ▪ www.datatec.de

4. Cable Length Compensation

When the test sample is measured with an instrument having a Four-Terminal Pair configuration, the additional length

of the test-lead extension between the instrument and the test sample, in conjunction with the measurement frequen-

cy, influences the amplitude and phase of the signal being measured. This must be taken into account, particularly for

measurements performed at frequencies of 100 kHz or higher, since the modification of the amplitude and phase of the

signal can cause the internal measurement circuit to malfunction or create an unexpected measurement error. Such cir-

cuit malfunctions and measurement errors can be avoided with cable length compensation. Cable length compensation

should therefore be performed prior to the open/short compensation. When the following measurement instruments

and test leads are used in combination, the undesired effects described above can be eliminated by performing the

cable length compensation (the values in the table represent cable length settings):

–: N/A

: Available for 4284A with Option 006.

* denotestheinstrumentisobsolete

Measurement Repeatability

Dirty electrodes on the test fixture cause an increase in the contact resistance. This increase in resistance can cause poor

measurement repeatability. Therefore, the electrode of the test fixture must be kept clean when measurements are per-

formed.

Appendix Compensation

Model 16048A 16048D 16048E 16048G 16048H

4263B 1 m 2 m 4 m – –

4268A* 1 m 2 m – – –

4279A* 1 m 2 m – – –

4284A* 1 m 2 m

4 m

– –

4285A 1 m 2 m – – –

4288A* 1 m 2 m – – –

4294A – – – 1 m 2 m

E4980A 1 m 2 m 4 m – –

E4981A 1 m 2 m – – –

1 2 ... 72 73 74 75 76 77 78 79 80

Sem comentários

Agilent Technologies DC110 Especificações Página 77