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Measuring device for strain properties of materials under extreme conditions

A measurement device and technology for extreme conditions, applied in the field of measurement devices, can solve problems such as the measurement function of strain characteristics under multi-physics fields, and achieve the effects of reliable measurement method, easy construction, and accurate and reliable strain data

Active Publication Date: 2016-01-20
QUJING NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the series of products reported by the above-mentioned companies do not include the measurement function of strain characteristics under multi-physics fields

Method used

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  • Measuring device for strain properties of materials under extreme conditions
  • Measuring device for strain properties of materials under extreme conditions
  • Measuring device for strain properties of materials under extreme conditions

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Experimental program
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Embodiment Construction

[0028] Preferred embodiment of the present invention is described in detail with reference to accompanying drawing as follows:

[0029] A measuring device for strain characteristics of materials under extreme conditions, including a microcomputer terminal 1, a TDS-150 data acquisition instrument 3, a temperature-variable magnetic device and a Dewar sleeve inside, a cryogenic chamber 24, a sample conduit 10, and a Dewar cover 11. Superconducting coil 22 , sample stage joint 21 and sample stage 23 .

[0030] The Dewar cover 11 is sealedly installed on the upper end surface of the Dewar sleeve through the first flange to form an outer cavity, and the Dewar bottle 9 is located in the outer cavity; a through hole is opened in the center of the Dewar cover, and the low temperature cavity The lower end of 24 is embedded in the through hole of the Dewar cover 11 and is located in the Dewar bottle 9; the vacuum module 13 is located at the upper end of the low temperature cavity 24, and...

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Abstract

Measuring device for material strain characteristics under extreme conditions, including computer terminal, TDS-150 data acquisition instrument, variable temperature and variable magnetic device and its inner Dewar sleeve, cryogenic cavity, sample conduit, Dewar cover, superconducting coil, sample stage joint and sample stage; the computer terminal is equipped with a data acquisition and analysis system; among them, a sample conduit is installed in the low temperature chamber of the variable temperature and magnetic device, and a superconducting coil is installed on the lower periphery, and the top of the sample conduit transmits the electrical signal of the strain gauge. Shielded cable interface, the lower part has a sample connector, the lower end of the sample connector has a sample stage installation groove, and the sample stage is installed; the inner wall of the low temperature chamber is installed with a magnetic control circuit; the first layer of the sample stage is the sample installation area, the induction module, and the connection channel. The second layer has heating sheets and thermocouples, the third layer is pin holes, and there are strain gauges in the strain gauge sensing module, both of which are connected to the common terminal by sensing wires; to realize the measurement of the strain characteristics of materials under multi-physics fields.

Description

technical field [0001] The invention relates to a measuring device for strain characteristics of materials under extreme conditions; a device for testing the strain characteristics of materials under multi-physics fields (such as low temperature and strong magnetic field). Background technique [0002] As we all know, in the research of experimental condensed matter physics and materials science, testing and researching the static strain characteristics of many materials such as metal materials, multifunctional alloys and composite materials, such as magnetostriction, thermostriction and other physical mechanisms, is an important part of material physics. An important means of basic research. Using this method can further determine the value of materials in practical engineering applications. However, in the actual static strain test of materials, it is usually necessary to measure the material under special conditions such as a given temperature and a given magnetic field....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/00G01B7/16
Inventor 徐坤李哲张元磊曹义明
Owner QUJING NORMAL UNIV
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