Two methods for a first order hardware gradiometer using two HTS SQUIDs Metadata

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Title

  • Main Title Two methods for a first order hardware gradiometer using two HTS SQUIDs

Creator

  • Author: Espy, M. A.
    Creator Type: Personal
  • Author: Flynn, E. R.
    Creator Type: Personal
  • Author: Kraus, R. H., Jr.
    Creator Type: Personal
  • Author: Matlachov, A.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: USDOE, Washington, DC (United States)

Publisher

  • Name: Los Alamos National Laboratory
    Place of Publication: New Mexico
    Additional Info: Los Alamos National Lab., NM (United States)

Date

  • Creation: 1998-12-31

Language

  • English

Description

  • Content Description: Two different systems for noise cancellation (first order gradiometers) have been developed using two similar high temperature superconducting (HTS) SQUIDs. Analog gradiometry is accomplished in hardware by either (1) subtracting the signals from the sensor and background SQUIDs at a summing amplifier (parallel technique) or (2) converting the inverted background SQUID signal to a magnetic field at the sensor SQUID (series technique). Balance levels achieved are 2000 and 1000 at 20 Hz for the parallel and series methods respectively. The balance level as a function of frequency is also presented. The effect which time delays in the two sets of SQUID electronics have on this balance level is presented and discussed.
  • Physical Description: 5 p.

Subject

  • Keyword: Noise
  • Keyword: Time Delay
  • Keyword: Squid Devices
  • Keyword: Computerized Control Systems
  • Keyword: High-Tc Superconductors
  • Keyword: Magnetometers
  • Keyword: Electronic Equipment
  • STI Subject Categories: 44 Instrumentation, Including Nuclear And Particle Detectors
  • Keyword: Design

Source

  • Conference: Applied superconductivity conference, Palm Desert, CA (United States), 13-18 Sep 1998

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Other: DE99002587
  • Report No.: LA-UR--98-3910
  • Report No.: CONF-9809130--
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 350916
  • Archival Resource Key: ark:/67531/metadc680572

Note

  • Display Note: OSTI as DE99002587
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