A New High-Frequency Inductive Voltage Divider for QHR Measurements at Frequencies up to 2 MHz

Research output: Contribution to journalConference proceedings published in a journalpeer-review

Abstract

We report on the development of a new single-stage high-frequency inductive voltage divider (HF-IVD) for Quantum Hall Resistance measurements at frequencies up to 2 MHz. The design, construction and testing of the HF-IVD are detailed, including effects of switching on any spike voltages and settling times after switching are found to be only a few micro-seconds. Measurements over the 200 kHz to 2 MHz range show that both the in-phase and quadrature relative voltage deviations are less than 2% at 2 MHz. These measurements will also be compared to an electrical HF equivalent circuit model of the HF-IVD and presented at the CPEM 2024.

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Electrical and Electronic Engineering

Keywords

  • coaxial bridges
  • HF inductive voltage divider
  • High frequency impedance
  • precision LCR meter
  • Quantum Hall Standard of Impedance (QHSI)

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