The response characteristics of cowound voltage sensors in cable-in-conduit conductor

Yong Chu; Ho Min Kim; Tae Kuk Ko; Kee Man Kim

doi:10.1109/77.783504

The response characteristics of cowound voltage sensors in cable-in-conduit conductor

Yong Chu, Ho Min Kim, Tae Kuk Ko, Kee Man Kim

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

When a superconducting magnet is exposed to time-varying, non-symmetrical transverse and parallel fields, the balanced bridge for quench detection is ineffective. To make quench detection possible, the inductive voltage must be reduced, or canceled, to a level less than the resistive voltage due to quench. The internal cowound voltage sensors in the cable cross-section as the primary mechanism to cancel the inductive noise are analyzed and tested in this research. The signal to noise ratio under a variety of conditions with different sensor locations, field sweeping rates and quenched lengths are improved to a factor of 1000 or more by using cowound voltage sensors.

Original language	English
Pages (from-to)	1157-1160
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	9
Issue number	2 PART 1
DOIs	https://doi.org/10.1109/77.783504
Publication status	Published - 1999

Bibliographical note

Funding Information:
Manuscript received September 18, 1998. This research was supported by Samsung Advanced Institute of Technology, Republic of Korea.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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abstract = "When a superconducting magnet is exposed to time-varying, non-symmetrical transverse and parallel fields, the balanced bridge for quench detection is ineffective. To make quench detection possible, the inductive voltage must be reduced, or canceled, to a level less than the resistive voltage due to quench. The internal cowound voltage sensors in the cable cross-section as the primary mechanism to cancel the inductive noise are analyzed and tested in this research. The signal to noise ratio under a variety of conditions with different sensor locations, field sweeping rates and quenched lengths are improved to a factor of 1000 or more by using cowound voltage sensors.",

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