Agilent Technologies 4294A Especificações descarregar pdf (Página 11)

1-5. Component dependency factors

The measured impedance value of a component depends on several measurement conditions, such

as frequency, test signal level, and so on. Effects of these component dependency factors are differ-

ent for different types of materials used in the component, and by the manufacturing process used.

The following are typical dependency factors that affect measurement results.

Frequency:

Frequency dependency is common to all real-world components because of the existence of para-

sitics. Not all parasitics affect the measurement, but some prominent parasitics determine the com-

ponent’s frequency characteristics. The prominent parasitics will be different when the impedance

value of the primary element is not the same. Figures 1-7 through 1-9 shows the typical frequency

response for real-world resistors, inductors, and capacitors.

Figure 1-7. Resistor frequency response

Figure 1-8. Inductor frequency response

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Agilent Technologies 4294A Especificações Página 11