rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Capacitive stress transducers in model dipole magnets
  name:
    name part: Benson, Christopher Pete.
    role:
      role term: creator
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: txu
    date issued: 2010
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: remote
    extent: 1 online resource.
  abstract: Capacitive stress transducers are used to measure mechanical stresses in the windings of superconducting dipole magnets. These transducers consist of a bonded laminate composed of alternating foils of stainless steel and a high-strength polymer known as polyimide. The thin, flat design of the transducers is ideal for measuring the integrated Lorentz stresses within the windings when current is flowing in the coil to generate a magnetic field. The process of fabricating and calibrating these custom gauges has proven to be a non-trivial problem. Previously, many variables have been left unchecked during the fabrication and calibration phases thus leading to non-repeatable transducers. My goal is to improve upon current methods of transducer fabrication to yield more consistent responses and robust packages. To accomplish this, new techniques and fixtures have been developed to control factors, such as layer alignment, thickness variability and calibration consistency. New fixtures that have been developed are a polyimide cutting fixture, a new transducer alignment and epoxy curing fixture, a torque fixture, and a re-machined testing fixture. These new fixtures, coupled with new techniques, will increase the repeatability and reliability of the transducers. Incorporating these fixtures has lead to a 75% decrease in thickness variations across the length of the transducers, 62% reduction in total epoxy thickness and a 70% decrease in number of pressure cycles required for calibration curve convergence. While these improvements produce impressive results, additional transducers are being constructed and calibrated to verify these findings. The improved fabrication and calibration methods and fixtures, results and conclusions will be discussed.
  note: by Christopher Pete Benson.
  note: "Major Subject: Physics"
  note: Title from author supplied metadata (automated record created 2010-08-20 08:33:27).
  note: Electronic resource.
  note: Bachelor of Science Texas A&M University 2010 http://hdl.handle.net/1969.1/ETD-TAMU-2010-05-8077
  note: Includes bibliographical references.
  note: Text (Thesis)
  subject:
    topic: Major physics
  subject:
    topic: Capacitive Transducer
  subject:
    topic: Dipole Magnet
  subject:
    topic: TAMU III
  subject:
    topic: Capacitive Stress Transducer
  subject:
    topic: Model Dipole Magnet
  subject:
    topic: Stress Transducer
  identifier: http://hdl.handle.net/1969.1/ETD-TAMU-2010-05-8077
  record info:
    record content source: TXA
    record creation date: 100907
    record change date: 20151201155026.0
    record identifier: in00002605415