A Versatile Superconducting Magnetometer/Gradiometer System.

Abstract

A versatile superconductive magnetometer/gradiometer system was designed and procured from a commercial vendor. A number of magnetic field sensing (pick-up) loops are mounted on a common substrate block and connected through a switching network to a single SQUID sensor. By suitably connecting these coils, it is possible to measure a component of the magnetic field of interest with an instrument noise level of 1.1 x 10(-14) tesla rms per root hertz or at a reduced sensitivity range with an instrument noise level of 1.3 x10(-13) tesla rms per root hertz. In addition, several of the coils can be connected in opposition to measure the diagonal component of the gradient (dH sub i/dX sub i) of the field of interest with an instrument noise level of 1.2 x 10(-15) tesla rms per cm per root hertz. The dewar and probe assembly can be tilted in order to monitor either the horizontal or the vertical field component or (diagonal) gradient component of the field of interest. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1977
Accession Number
ADA049117

Entities

People

  • M. Nisenoff
  • S. A. Wolf

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors

DTIC Thesaurus Topics

  • Anomaly Detection
  • Control Knobs
  • Detection
  • Detectors
  • Electrical Impedance
  • Electronics
  • Frequency Response
  • Gradiometers
  • Inductance
  • Loop Antennas
  • Magnetic Anomaly Detection
  • Magnetic Detection
  • Magnetic Fields
  • Magnetometers
  • Materials
  • Measurement
  • Military Research

Fields of Study

  • Physics

Readers

  • Acoustics.
  • Software Engineering
  • Superconducting Magnet Technology