Title:
SUPERCONDUCTING COIL QUENCH DETECTOR AND DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2010/055885
Kind Code:
A1
Abstract:
It is desirable to detect a quench in a superconducting coil at an early stage while suppressing the effects of noise generated during charging and discharging of the coil. The superconducting coil quench detector detects a balance voltage in a bridge circuit formed with a superconducting coil and resistors and outputs same as a quench detection signal for detecting a quench in the superconducting coil. A signal indicating a retention time for retaining the energy accumulated in the superconducting coil is generated. A signal contained within the retention time is extracted out of the quench detection signal. The quench in the superconducting coil is detected based on the extracted signal.
Inventors:
KAWASHIMA, Hiroshi (1-1, Arai-cho Shinhama 2-chome, Takasago-sh, Hyogo 86, 〒6768686, JP)
Application Number:
JP2009/069278
Publication Date:
May 20, 2010
Filing Date:
November 12, 2009
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD. (16-5, Konan 2-Chome Minato-k, Tokyo 15, 〒1088215, JP)
三菱重工業株式会社 (〒15 東京都港区港南二丁目１６番５号 Tokyo, 〒1088215, JP)
三菱重工業株式会社 (〒15 東京都港区港南二丁目１６番５号 Tokyo, 〒1088215, JP)
International Classes:
H01F6/00; G01R31/00; H01F6/02; H02J15/00
Attorney, Agent or Firm:
KUDOH, Minoru (6F Kadoya Bldg, 24-10 Minamiooi 6-chom, Shinagawa-ku Tokyo 13, 〒1400013, JP)
Download PDF:
Previous Patent: METHOD FOR PRODUCING PYRAZINE DERIVATIVE AND INTERMEDIATE THEREOF
Next Patent: AGENT FOR CONTROL OF SENSITIVITY TO ULTRAVIOLET LIGHT
Next Patent: AGENT FOR CONTROL OF SENSITIVITY TO ULTRAVIOLET LIGHT