Testing device for piezoresistive/shear resistance performance of magnetosensitive device under controllable magnetic field

A technology of a testing device and a magnetic field generating device, which is applied to the size/direction of the magnetic field, the measuring device, and the measuring resistance/reactance/impedance, etc., can solve the problems of affecting the testing accuracy, increasing the feedback delay, and measuring the interference of the measuring device.

Active Publication Date: 2018-08-10
CHONGQING UNIV OF POSTS & TELECOMM
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AI Technical Summary

Benefits of technology

This innovation describes an improved way for testing how well two materials behave when exposed to varying levels of force or pressure. It introduces a special mechanism that allows one material (a type called Piezoelectric) to react more easily with another material without being affected too much during its use. By doing this, it becomes possible to study various aspects related to these types of materials such as their behavior at high pressures over time.

Problems solved by technology

Technological Problem: Current methods used by scientists to evaluate the effectiveness of magnetomechanics materials include subjectivity and limitations related to environmental factors like temperature changes over long periods due to fluctuations caused by external sources. Additionally, current testing techniques involve destructively removing material from samples during tests, leading to potential safety hazards associated with these processes.

Method used

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  • Testing device for piezoresistive/shear resistance performance of magnetosensitive device under controllable magnetic field
  • Testing device for piezoresistive/shear resistance performance of magnetosensitive device under controllable magnetic field
  • Testing device for piezoresistive/shear resistance performance of magnetosensitive device under controllable magnetic field

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Embodiment Construction

[0023] A test device for the piezoresistance / shear resistance performance of a magnetic sensitive device under a controllable magnetic field, including a force applying device for applying pressure / shear force to the device under test 7, and a device for providing a controllable magnetic field for the device under test 7 Magnetic field generating device 13, and a signal collecting device for collecting and storing pressure information, magnetic field strength and its own resistance information applied to the device under test 7 in real time, and for collecting the pressure information, magnetic field strength according to the collected and the resistance information to obtain the piezoresistance / shear resistance information of the device under test 7 under different magnetic fields.

[0024] Such as figure 1 The shown magnetic field generating device 13 is used to apply a stable and adjustable magnetic field for the device under test 7 according to the experimental requirem

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Abstract

The invention discloses a testing device for piezoresistive/shear resistance performance of a magnetosensitive device under a controllable magnetic field, which comprises a force applying device for applying pressure/shear force to a device to be tested; a magnetic field generating device for providing a controllable magnetic field to the device to be tested; and a signal collecting device for collecting and storing pressure information, magnetic field strength and its own resistance information applied to the device to be tested in real time, thereby calculating the piezoresistive/shear resistance information of the device under test under different magnetic fields according to the collected pressure information, magnetic field strength and the resistance information. The invention proposes a novel mechanical sensor fixture design scheme, which can enable piezoresistive/shear resistance tests to be performed on the same device; and by adding the magnetic field generating device to thedevice, the device can be subjected to piezoresistive/shear resistance performance under different magnetic fields.

Description

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Claims

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Application Information

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Owner CHONGQING UNIV OF POSTS & TELECOMM
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