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Device for testing performance of magnetic shape memory alloy

A memory alloy and testing device technology, applied in the field of magnetron memory alloys, achieves the effects of compact structure, high measurement accuracy, and prevention of external magnetic field interference

Inactive Publication Date: 2014-02-05
WUHAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no such device for testing the performance of magnetically controlled shape memory alloys that meets the precision requirements.

Method used

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  • Device for testing performance of magnetic shape memory alloy

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Embodiment 1

[0019] A device for testing the properties of a magnetically controlled shape memory alloy. The device such as figure 1 and figure 2 As shown, the front support frame 9 and the rear support frame 21 are fixed symmetrically on the front and back of the base 8, the front support frame 9 and the rear support frame 21 are provided with an iron core 14, and the upper plane of the iron core 14 front is provided with a connecting plate 17 . The upper ends of the front left splint 5 and the front right splint 16 are correspondingly pressed on the left end and the right end of the connecting plate 17, and the lower ends of the front left splint 5 and the front right splint 16 are correspondingly fixed on the left end and the right end of the front support frame 9; the rear left splint 22 The upper end of the rear right splint 20 is correspondingly pressed on the upper plane of the rear left corner and the rear right corner of the iron core 14, and the lower ends of the rear left spl...

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Abstract

The invention relates to a device for testing performance of magnetic shape memory alloy. According to the technical scheme, an iron core (14) is arranged on a front supporting frame (9) and a rear supporting frame (21) of a base (8), the front supporting frame (9) and the rear supporting frame (21) are symmetrically fixed front and back, a connecting plate (17) is arranged on the upper plane of the front portion of the iron core (14), and a loading frame (2) is fixed to the upper plane of the connecting plate (17). A left coil (6) is wound on the left side of the iron core (14), and a right coil (5) is wound on the right side of the iron core (14). A central screw hole in the upper portion of the loading frame (2) is formed in the lower end of an adjusting handle (1) in a screwed mode, and a spring (19) is arranged between an annular boss of an upper ejector rod (18) and a spring blocking sheet (3) of the adjusting handle (1). A force sensor (10) is arranged on the base (8), a lower ejector rod (11) is arranged on the force sensor (10), and the magnetic shape memory alloy (13) is arranged between the lower ejector rod (11) and the upper ejector rod (18). A displacement sensor (4) is arranged on the side, with a central hole, of the connecting plate (17), and a Hall sensor (12) is fixed to the side face of the clearance of the iron core. The device has the advantages of being simple and compact in structure and high in measurement precision.

Description

technical field [0001] The invention belongs to the technical field of magnetic control memory alloy. In particular, it relates to a testing device for the performance of a magnetically controlled shape memory alloy. Background technique [0002] Magnetically controlled shape memory alloy (MSMA) has the characteristics of fast change speed, large controllable displacement and memory function. Relevant data show that the strain of MSMA material in the magnetic field can reach more than 10%, which is more than 100 times that of other high-frequency material actuator materials. This material can deform in different directions, and can deform along the axial direction. It can produce twisting deformation along the axial direction and bending deformation along the radial direction, and its high performance is favored by many scholars. [0003] At present, the research on magnetically controlled shape memory alloy (MSMA) mainly focuses on how to establish the hysteresis nonlinea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/02
Inventor 涂福泉李贺刘小双陈奎生曾良才傅连东许仁波欧阳惠周浩王琦琳
Owner WUHAN UNIV OF SCI & TECH
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