Title:
DEVICE AND METHOD FOR MEASURING MAGNETIC INDUCTION INTENSITY BASED ON COLOSSAL MAGNETORESISTIVE EFFECT
Document Type and Number:
WIPO Patent Application WO/2012/079507
Kind Code:
A1
Abstract:
The invention refers to a device and method for measuring magnetic induction intensity, especially to a device and method for measuring magnetic induction intensity based on the colossal magnetoresistive effect. The device includes an electromagnetic shielding device, a first loop and a second loop; the first loop includes a colossal magnetoresistive element, a Helmholtz coil and a first power supply device; the second loop includes a Huygens bridge and a second power supply device. The Helmholtz coil is utilized to supply a counter magnetic field by the use of significant action of the colossal magnetoresistive effect, so as to balance a magnetic field to be measured. When the Huygens bridge is balanced, the magnetic field to be measured is numerically equal to the magnetic field of the Helmholtz coil, but their directions are opposite, therefore, the device is not required to calculate the resistance of the colossal magnetoresistive element, thereby improving calculation accuracy and precision. The electromagnetic shielding device is utilized to effectively shield the environmental magnetic field, provide a measuring environment with zero magnetic field intensity, provide basic parameters without interference for the subsequent measuring, and improve the measuring accuracy.
Inventors:
WANG XIN (CN)
ZHUO CIYUAN (CN)
ZHUANG MING (CN)
LI YUSHENG (CN)
ZHENG JIE (CN)
WANG JIANGYI (CN)
ZHUO CIYUAN (CN)
ZHUANG MING (CN)
LI YUSHENG (CN)
ZHENG JIE (CN)
WANG JIANGYI (CN)
Application Number:
PCT/CN2011/083981
Publication Date:
June 21, 2012
Filing Date:
December 14, 2011
Export Citation:
Assignee:
FUJIAN ELECTRIC POWER CO LTD (CN)
FUJIAN SHUIKOU POWER GENERATION GROUP CO LTD (CN)
FUJIAN SHUIKOU POWER GENERATION GROUP CO LTD (CN)
International Classes:
G01R33/09
Domestic Patent References:
| WO2007096318A1 | 2007-08-30 |
Foreign References:
| CN102103139A | 2011-06-22 | |||
| CN201886140U | 2011-06-29 | |||
| CN101802633A | 2010-08-11 | |||
| JP2010078401A | 2010-04-08 | |||
| US6232776B1 | 2001-05-15 | |||
| US20100223797A1 | 2010-09-09 |
Attorney, Agent or Firm:
FUZHOU ZHANHUI PATENT AGENCY (CN)
福州展晖专利事务所 (CN)
福州展晖专利事务所 (CN)
Download PDF:
Claims:
Previous Patent: FLUOROPOLYMER COMPOSITIONS
Next Patent: MULTIMODE BASE STATION AND FAULT AND DISASTER TOLERANCE METHOD THEREOF
Next Patent: MULTIMODE BASE STATION AND FAULT AND DISASTER TOLERANCE METHOD THEREOF