Measurement Connections

Measurement Connections

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Connecting an instrument to a device under test (DUT) invariably involves disturbing that device. When making precision measurements, it is desirable to minimize loading and other effects so that the measurement is not corrupted by the measuring instrument. Probes, attenuators, impedance matching devices, and filters are used to couple the signal of interest into the instrument in the most efficient and accurate manner.

Chapter Contents:

  • 12.1 The Loading Effect
  • 12.2 Maximum Voltage and Power Transfer
  • 12.3 High-Impedance Inputs
  • 12.4 High-Impedance Probes
  • 12.5 Z 0 Impedance Inputs
  • 12.6 Input Connectors
  • 12.7 Z 0 Terminations
  • 12.8 Power Splitters
  • 12.9 Attenuators
  • 12.10 Return Loss Improvement
  • 12.11 The Classical Attenuator Problem
  • 12.12 Impedance Matching Devices
  • 12.13 Measurement Filters
  • References

Inspec keywords: electric impedance measurement; attenuators; probes; signal processing; impedance matching

Other keywords: precision measurements; attenuators; probes; impedance matching filters; measuring instrument; device under test; loading effects; measurement connections; instrument connection; impedance matching devices

Subjects: Filtering methods in signal processing; Impedance and admittance measurement

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