Monolithic magnetic property measuring device based on spatial orthogonal triaxial stress loading condition

Abstract

The invention relates to a monolithic magnetic property measuring device based on a spatial orthogonal triaxial stress loading condition. The measuring device comprises a control module, an excitation module, a triaxial stress applying module and a measuring module. According to the measuring device, a required measuring sensor is arranged in a compression column in a z-axis compressive stress structure, a B sensor is a B probe measuring sensor, an H sensor is a double-coil sensor, and a measuring sample is designed to be a cross-shaped monolithic sample with continuous curvature radian. Spatial orthogonal triaxial stress applying directions of the measuring device are X-axis and Y-axis directions in a plane and Z-axis directions in a space, pulling (pressing) stress is applied to the X-axis and the Y-axis through a traction motor, and pressing stress is applied to the Z-axis direction through a hydraulic press. The measuring device is used for measuring the magnetic characteristics of a single sample under a spatial orthogonal triaxial stress loading condition.

Description

technical field [0001] The invention relates to a sample magnetic characteristic measurement device under stress loading conditions, in particular to a single-chip magnetic characteristic measurement device under space orthogonal triaxial stress loading conditions. Background technique [0002] Magnetic properties measurement is to reflect the magnetic properties of the sample to be tested through the detected B-H curve. In the current measurement process, in order to protect the measurement sample from damage, the B probe is often used to collect the B signal, and the H sensor coil is mounted on the sample surface to collect the H signal, and the collected B and H signals are transmitted to the digital signal processing through the NI acquisition card unit. In order to ensure the accuracy of the measurement results, the measuring H-coil sensor needs to be close to the surface of the sample. If the H-sensing coil cannot be completely attached to the sample surface, multi-se...

AI Technical Summary

Problems solved by technology

However, the disadvantage of this invention is that it can only apply stress in a uniaxial fixed direction, and the measurement target sample is a block sample, so the scope of application of the device is limited

In addition, the device places the B-H sensing coils required for measurement on the four excitation surfaces of the sample, which reduces the excitation effect of the magnetic circuit

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