Device and method for measuring electrical explosion temperature distribution of metal wire

Abstract

The invention relates to a rapid temperature distribution measurement technology, in particular to a device and a method for measuring electrical explosion temperature distribution of a metal wire. The device is characterized by comprising an optical imaging lens, a beam splitter, a first narrow-band filter, a second narrow-band filter, a first array type optical sensor, a second array type optical sensor, an explosion starting information acquisition module and a shutter control module, the optical imaging lens is fixed in front of a metal wire explosion source, and the beam splitter is arranged at the rear end of the optical imaging lens; the beam splitter divides the imaging of the optical imaging lens to the explosion source into two paths, and the two paths of light are provided with a first narrow-band filter and a first array type optical sensor and the second narrow-band filter and a second array type optical sensor respectively. The invention provides the device and the method for measuring the electrical explosion temperature distribution of the metal wire, which can measure the space-time fast band change data of the temperature distribution in the electrical explosion process of the metal wire and realize the high space-time resolution measurement of the temperature in the electrical explosion process of the metal wire.

Description

technical field [0001] The invention relates to a rapid temperature distribution measurement technology, in particular to a device and method for measuring the temperature distribution of a metal wire electric explosion. Background technique [0002] When the pulsed high current passes through the metal wire, due to the ohmic heating mechanism, a large amount of energy is deposited in the metal wire instantaneously, and the metal wire undergoes a phase change and expands rapidly, accompanied by phenomena such as luminescence and explosion sound. This complex physical process is called metallurgy. Wire explosion. Wire electric explosion has a wide range of applications in Z-pinch plasma, X-pinch X-ray source, nano-powder preparation, electric explosion switch, fossil energy development, geophysical exploration and other fields. [0003] The wire electric explosion process is accompanied by complex physical and chemical changes. As the explosion process progresses, the wire ...

AI Technical Summary

Problems solved by technology

[0005] Optical radiation pyrometers can currently be used to measure the temperature of explosive bodies, but this does not allow high temporal and spatial resolution measurements of the temperature distribution

In terms of space, only the overall temperature or average temperature of the explosive body can be measured, and the change of temperature with space cannot be measured; in terms of time, it is also impossible to accurately locate and measure the temperature at what time, only the average temperature during the explosion process can be measured. temperature

This is far from enough for the study of the electric explosion process

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