Evaluation of a Capacitance Scaling System

Abstract

An improved error analysis of an existing capacitance scaling system for supporting measurements of higher valued (10 nF to 100 muF) ceramic-dielectric four-terminal-pair (4TP) capacitance standards over the 100-Hz to 100-kHz frequency range is described. The capacitance scaling system uses a commercial impedance (inductance-capacitance-resistance) meter and a single-decade inductive voltage divider as an impedance comparator. Four-terminal-pair capacitors in decade (10 : 1) steps from 10 nF to 100 F are measured. The system's 10 : 1 scaling error is determined using 100-pF and 1-nF air-dielectric 4TP capacitance standards with known capacitance and loss characteristics over frequency. This paper discusses the significant reductions in measurement uncertainty that were attained through the use of improved calibration standards and measurement method refinements. Details of the uncertainty analysis for a 10-nF capacitor (in the 100-Hz to 10-kHz frequency range) and verification data are presented.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2007
Accession Number
ADA541705

Entities

People

  • Andrew D. Koffman
  • Bryan C. Waltrip
  • Svetlana Avramov-Zamurovic
  • Yicheng Wang

Organizations

  • United States Naval Academy

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Calibration
  • Capacitance
  • Capacitance Bridges
  • Capacitors
  • Electrical Engineering
  • Errors
  • Frequency
  • Impedance
  • Instrumentation
  • Measurement
  • Measuring Instruments
  • Standards
  • Terminals
  • Test And Evaluation
  • Uncertainty
  • United States Naval Academy
  • Voltage Dividers

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Electrical Engineering
  • Microwave Engineering.