Title:
DEVICE AND METHOD FOR MEASURING MAGNETIC PARAMETER OF GIANT MAGNETOSTRICTIVE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2023/115671
Kind Code:
A1
Abstract:
A device and method for measuring a magnetic parameter of a giant magnetostrictive material. The measurement device comprises an outer magnetic field assembly; the outer magnetic field assembly comprises two magnetic poles (1), and a non-magnetically-conductive pressure container assembly is disposed between the two magnetic poles (1); the non-magnetically-conductive pressure container assembly comprises a sealed non-magnetically-conductive housing (4), constituting a high-temperature and high-pressure container; a giant magnetostrictive element (2) is placed inside the container; a pre-stress application assembly, a temperature control assembly and a pressure control assembly are mounted on the non-magnetically-conductive housing (4), and are respectively used for adjusting pre-stressing force exerted on the giant magnetostrictive element (2), and the temperature and pressure in the high-temperature and high-pressure container; a magnetic parameter detection assembly is mounted on the giant magnetostrictive element (2); the deformation quantity and the surface magnetic field intensity of the giant magnetostrictive element (2) under different external magnetic fields, pre-stressing force, temperatures and pressures are measured, and the measurement for a magnetic parameter of a giant magnetostrictive material having a continuous and adjustable external magnetic field, adjustable bias pre-stressing force, an adjustable temperature field and an adjustable pressure field is realized.
Inventors:
YAN XIANGHONG (CN)
YANG XIFENG (CN)
YAN SHIPENG (CN)
YANG XIFENG (CN)
YAN SHIPENG (CN)
Application Number:
PCT/CN2022/072105
Publication Date:
June 29, 2023
Filing Date:
January 14, 2022
Export Citation:
Assignee:
UNIV CHINA PETROLEUM EAST CHINA (CN)
International Classes:
G01R33/18
Foreign References:
| CN110221232A | 2019-09-10 | |||
| CN101109790A | 2008-01-23 | |||
| CN104062610A | 2014-09-24 | |||
| CN104035058A | 2014-09-10 | |||
| CN102540114A | 2012-07-04 | |||
| CN113155609A | 2021-07-23 | |||
| CN113805127A | 2021-12-17 | |||
| JP2003307475A | 2003-10-31 |
Other References:
ZHAO HAI-TAO, HE ZHONG-BO, LI ZHONG-WEI: "Giant Magnetostrictive Material's Characteristic Coefficient Measuring", SCIENCE TECHNOLOGY AND ENGINEERING., vol. 8, no. 16, 1 August 2008 (2008-08-01), pages 4642 - 4645, XP093073281
Attorney, Agent or Firm:
JINAN SHENGDA INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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