Device and system suitable for measuring conductivity of strip-shaped electrical material at different temperatures

Abstract

The invention discloses a strip-shaped electrical material conductivity measuring device and system suitable for different temperatures. The measuring device comprises a current applying mechanism, asample pressing mechanism, a measuring platform, a thermocouple and a voltage measuring mechanism. The system comprises the measuring device, a digital signal processing unit, a temperature control unit and a data acquisition unit, wherein the digital signal processing unit is respectively connected with the temperature control unit and the data acquisition unit, the measuring device is arranged in the temperature control unit and is used for controlling the temperature of the sample wafer, and a thermocouple, a current lead and a voltage lead of the measuring device are respectively connectedwith the data acquisition unit. According to the system, the type of the measured material is further expanded, and the temperature working condition is integrated into one measurement system, so conductivity measurement of various sizes and different types of strip-shaped electrical materials under the conventional condition and the condition of applying different temperatures can be realized, the measurement result is accurate, and the method has guiding significance for subsequent processes.

Description

Technical field [0001] The invention relates to the field of electrical conductivity measurement of electrical materials, in particular to a device and system for measuring electrical conductivity of strip-shaped electrical materials at different temperatures. Background technique [0002] In the field of electrical engineering, the electrical parameters of magnetic materials and related metal alloy materials, such as electrical conductivity, have an extremely important impact on the overall performance of electrical equipment. Electrical parameters can directly affect the copper loss and related core loss. In addition, due to the indivisibility of electromagnetic coupling, the eddy current effect closely related to the conductivity of the material will have a serious impact on the magnetic field environment such as the magnetic material in the device. Changes in these factors will bring about various problems such as temperature rise, heat dissipation and insulation life of the ...

AI Technical Summary

Problems solved by technology

[0004] At present, the existing conductivity measurement equipment has high requirements for the shape of the sample and the essential properties of the material, and it is necessary to customize the material sample of the corresponding shape, which is not conducive to improving the actual work efficiency of the laboratory and engineering.

At the same time, most of the existing measuring devices cannot take into account the diversity of materials, and are not suitable for other sizes and materials with different physical properties such as thinner and brittle materials. The types of measurement samples are relatively single, and there are different working conditions. There are fewer measuring devices under the environment, and the peak value of temperature is difficult to meet the actual needs, etc.

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