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

Conference · Wed Mar 01 00:00:00 EST 1989 · IEEE Trans. Magn.; (United States)

OSTI ID:6043157

Goodzeit, C L; Anerella, M D; Ganetis, G L

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 effects in actual magnets of the thermal stress changes from cooldown and the Lorentz forces during magnet excitation.

• Research Organization: 0936000
• OSTI ID: 6043157
• Report Number(s): CONF-880812-
• Journal Information: IEEE Trans. Magn.; (United States), Vol. 25:2; Conference: Applied superconductivity conference, San Francisco, CA, USA, 21 Aug 1988
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
43 PARTICLE ACCELERATORS
SUPERCONDUCTING MAGNETS
THERMAL STRESSES
SUPERCONDUCTING SUPER COLLIDER
DESIGN
TRANSDUCERS
CALIBRATION
MAGNETIC FIELDS
SENSITIVITY
STRESS ANALYSIS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
MAGNETS
STORAGE RINGS
STRESSES
SUPERCONDUCTING DEVICES
420201* - Engineering- Cryogenic Equipment & Devices
430300 - Particle Accelerators- Auxiliaries & Components
430200 - Particle Accelerators- Beam Dynamics
Field Calculations
& Ion Optics