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Title: Investigation of factors affecting the calibration of strain gage based transducers ( Goodzeit gages'') for SSC magnets

Conference ·
OSTI ID:5494905

These transducers are designed to measure stresses on SSC collared coils. They are individually calibrated with a bonded ten-stack of SSC inner coil cable by applying a known load and reading corresponding output from the gages. The transducer is supported by a notched backing plate'' that allows for bending of the gage beam during calibration or in use with an actual coil. Several factors affecting the calibration and use of the transducers are: the number of times a backing plate'' is used, the similarities or difficulties between bonded ten-stacks, and the differences between the ten-stacks and the coil they represent. The latter is probably the most important because a calibration curve is a model of how a transducer should react within a coil. If the model is wrong, the calibration curve is wrong. Information will be presented regarding differences in calibrations between Brookhaven National Labs (also calibrating these transducers) and Fermilab -- what caused these differences, the investigation into the differences between coils and ten-stacks and how they relate to transducer calibration, and some suggestions for future calibrations.

Research Organization:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE; USDOE, Washington, DC (United States)
DOE Contract Number:
AC02-76CH03000
OSTI ID:
5494905
Report Number(s):
FNAL-TM-1724; CONF-910340-54; ON: DE92010722
Resource Relation:
Conference: 3. annual international industrialization symposium on the super collider (IISSC), Atlanta, GA (United States), 13-15 Mar 1991
Country of Publication:
United States
Language:
English