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Device and method for parameter characteristic testing of magnetostrictive material

A technology of magnetostrictive materials and parameter characteristics, applied in magnetostrictive performance measurement, magnetic performance measurement, etc., can solve the problems of not measuring the output force and load force characteristics of materials, and achieve simple structure, few assembly parts, and uniform improvement sexual effect

Active Publication Date: 2014-09-10
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the device for testing magnetostrictive materials is relatively simple, and can only measure some parameters of the material, and there is no related device that can accurately measure the output force and load force characteristics of the material.

Method used

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  • Device and method for parameter characteristic testing of magnetostrictive material
  • Device and method for parameter characteristic testing of magnetostrictive material
  • Device and method for parameter characteristic testing of magnetostrictive material

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Embodiment Construction

[0024] like figure 1 As shown, the magnetostrictive material parameter characteristic testing device includes a frame 1, a base 2, a casing 3, a first coil 4, a second coil 5, a third coil 6, a coil bobbin 7, a temperature sensor 8, a detection coil 9, a Hall Sensor 10, first clamping copper sleeve 11, second clamping copper sleeve 12, lower plug 13, magnetostrictive material to be tested 14, ejector rod 15, upper end cover 16, first disc spring 17, second disc spring 18. The first pressure sensor 19, the second pressure sensor 20, the first adjustment nut 21, the second adjustment nut 22, the cover plate 23, the cover plate nut 24, the screw rod 25; The groove is provided with a frame 1 fixed by screws, the lower end of the frame 1 is provided with a lower plug 13, the upper end of the frame 1 is provided with a second adjustment nut 22, and the push rod 15 passes through the second adjustment nut 22, the second disc spring 18, the second The pressure sensor 20, the cover pl...

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Abstract

The invention discloses a device and method for parameter characteristic testing of a magnetostrictive material and relates to a testing device effectively separating compressive pre-stress and load stress. The problems that an existing magnetostrictive material and a device of the existing magnetostrictive material are high in dynamic load characteristic testing difficulty, complex in structure and large in size are solved. Through positioning adjustment of a cover plate and a cover plate nut, separation of the separating compressive pre-stress and the load stress on a to-be-tested magnetostrictive material is achieved; the compressive pre-stress and the load stress can be adjusted respectively through a first adjusting nut and a second adjusting nut, and the device can be used for conveniently measuring parameter characteristics of the magnetostrictive material under the effects of the compressive pre-stress and the load stress. Assembly components of the device are fewer, clearance errors caused by assembly and process matching can be effectively controlled, and the device is high in testing precision and suitable for high-precision testing of magnetostrictive material and testing of comprehensive performance of a driving device of the magnetostrictive material.

Description

technical field [0001] The invention relates to a test device and method for the parameter characteristics of magnetostrictive materials, in particular to a test device for the magnetic parameters, mechanical parameters and load force characteristics of magnetostrictive materials under the action of different magnetic fields and stress loads. Background technique [0002] Magnetostrictive material is a new type of functional material developed in the 1970s. As a medium for energy conversion, magnetostrictive material can effectively realize the conversion between electrical energy-mechanical energy and electrical energy-sound energy, and the material itself It has very superior magnetostrictive properties, such as large magnetostrictive coefficient (1500-2000ppm), large output stress, fast response speed, and high mechanical conversion efficiency. Applications in nano and other fields provide protection. At present, the research on the application of magnetostrictive materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/18
Inventor 严柏平张成明李立毅唐志峰吕福在
Owner ZHEJIANG UNIV
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