Measurement of internal forces in superconducting accelerator magnets with strain gauge transducers

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An improved method has been developed for the measurement of internal forces in superconducting accelerator magnets, in particular the compressive stresses in coils and the end restraint forces on the coils. The transducers have been designed to provide improved sensitivity to purely mechanical strain by using bending mode deflections for sensing the applied loads. Strain gauge resistance measurements are made with a new system that eliminates sources of errors due to spurious resistance changes in interconnecting wiring and solder joints. The design of the transducers and their measurement system is presented along with a discussion of the method of compensation ... continued below

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Pages: 7

Creation Information

Goodzeit, C.L.; Anerella, M.D. & Ganetis, G.L. January 1, 1988.

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Description

An improved method has been developed for the measurement of internal forces in superconducting accelerator magnets, in particular the compressive stresses in coils and the end restraint forces on the coils. The transducers have been designed to provide improved sensitivity to purely mechanical strain by using bending mode deflections for sensing the applied loads. Strain gauge resistance measurements are made with a new system that eliminates sources of errors due to spurious resistance changes in interconnecting wiring and solder joints. The design of the transducers and their measurement system is presented along with a discussion of the method of compensation for thermal and magnetic effects, methods of calibration with typical calibration data, and measured effect in actual magnets of the thermal stress changes from cooldown and the Lorentz forces during magnet excitation. 13 figs., 1 tab.

Physical Description

Pages: 7

Notes

NTIS, PC A02 - OSTI; 3.

Source

  • Applied superconductivity conference, San Francisco, CA, USA, 21 Aug 1988

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  • Other: DE89008158
  • Report No.: BNL-41979
  • Report No.: CONF-880812-43
  • Grant Number: AC02-76CH00016
  • Office of Scientific & Technical Information Report Number: 6276641
  • Archival Resource Key: ark:/67531/metadc1111161

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • January 1, 1988

Added to The UNT Digital Library

  • Feb. 22, 2018, 7:45 p.m.

Description Last Updated

  • April 24, 2018, 3:20 p.m.

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Goodzeit, C.L.; Anerella, M.D. & Ganetis, G.L. Measurement of internal forces in superconducting accelerator magnets with strain gauge transducers, article, January 1, 1988; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc1111161/: accessed October 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.