Device for measuring resistance of powder material

Abstract

The invention relates to a device for measuring the resistance of a powder material, and the device is characterized in that the device comprises a pedestal support, wherein the interior of the pedestal support is provided with a pressure maintaining mechanism, a pressure sensor, and a powder container; the pressure maintaining mechanism, wherein the upper end of the pressure maintaining mechanism is provided with a pressurizer, and the lower end of the pressure maintaining mechanism is connected with the pressure sensor; the pressure sensor which is connected with a pressure measuring device; the powder container which contains a temperature sensor, wherein the upper and lower ends of the powder container are respectively provided with an upper electrode and a lower electrode, which can move; a resistance measuring instrument which is movably connected with the upper electrode and the lower electrode through wires; and insulating layers which are disposed at two ends of the powder container. Because a mechanism for adjusting the pressure and maintaining the pressure stability in a measurement process is set and the pressure sensor, the pressure measuring instrument and a temperature sensor are also set, the device can enable the powder in the powder container to be kept under the specified requirements, also can monitor the pressure and temperature of powder in real time, and enables the resistance measurement data to be more accurate.

Description

technical field [0001] The invention belongs to the field of powder material resistance testing, in particular to a measuring device for measuring powder material resistance. Background technique [0002] Generally, to measure the resistance of powder materials, the powder is pressed into a block first, and then measured by four-probe measurement method. For powders that are difficult to be compacted, a certain amount of binder is usually added and then compacted, but the binder will more or less affect the measurement results. In order to solve this problem, the application with the patent application number 201210258756.7 provides a structure including a metal powder compaction plug, an insulating sealing ring, a contact electrode, a cylindrical shell for holding metal powder, and a resistance measuring instrument. test device. However, when the device is measuring resistance, when the compaction plug only depends on the friction with the sealing ring to determine the po...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the present invention provides a measuring device for measuring the resistance of powder materials; Measure, display and save the pressure value of the powder, and also measure, display and save the temperature value of the powder to ensure accurate measurement of resistance data under various accurate measurement conditions

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