Relaxation Oscillator Using Hysteretic Current-Voltage Characteristics of Ybacuo Thin Strips

Keiji Enpuku; Takanobu Kiss; K. Yoshida

doi:10.1109/20.133855

Relaxation Oscillator Using Hysteretic Current-Voltage Characteristics of Ybacuo Thin Strips

Keiji Enpuku, Takanobu Kiss, K. Yoshida

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

4 Citations (Scopus)

Abstract

It is difficult to calculate the time dependence of current and voltage for multiple coils considering mutual coupling when a coil is quenched. We describe the simulation method that calculates the time dependence of those values under the condition that the coils were quenched. Using this developed method, current changes and temperature rise in a 4.7 Tesla superconducting small bore magnet are calculated. From calculations, we found that the temperature rise was less than 200K in superconducting shim coils and 125K in main coils. Consequently, coils can be protected without protection resistance.

Original language	English
Pages (from-to)	3058-3061
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	27
Issue number	2
DOIs	https://doi.org/10.1109/20.133855
Publication status	Published - Jan 1 1991

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/20.133855

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AB - It is difficult to calculate the time dependence of current and voltage for multiple coils considering mutual coupling when a coil is quenched. We describe the simulation method that calculates the time dependence of those values under the condition that the coils were quenched. Using this developed method, current changes and temperature rise in a 4.7 Tesla superconducting small bore magnet are calculated. From calculations, we found that the temperature rise was less than 200K in superconducting shim coils and 125K in main coils. Consequently, coils can be protected without protection resistance.

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Relaxation Oscillator Using Hysteretic Current-Voltage Characteristics of Ybacuo Thin Strips

Abstract

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