On-line laser energy and light power density space-time distribution measuring system

Abstract

There is kind of measuring system of on-line mode high-energy laser energy and the time-space distribution of the light power density. This system mainly consists of the light sampler, the detector, array, the multi-channel data acquisition card and the data processing computer. This system can on line measure out the change of the light power density of the high-energy laser with the time and space, and the total energy values can also be gained by calculating. This system specially adapts to the infrared wave band, continuous wave, high energy laser, such as the deuterium-fluorin laser, the oxygen iodine laser, etc, and these laser have advantages of large facular area, short irritation time, and high output energy and power density, and it also adapts to the high power density continuous wave laser, such as the carbon-dioxide laser, the YAG laser, etc.

Description

technical field [0001] The invention relates to an online laser energy and optical power density time-space distribution measurement system, in particular to an online measurement system for large-area high-energy laser energy and optical power density time-space distribution. Background technique [0002] Existing methods for measuring high-energy laser energy and optical power density distribution mainly include energy ablation method, target spot scattering measurement method, heat absorption detection method and so on. [0003] The energy ablation method is to let the laser irradiate the ablated object, usually plexiglass, calculate the total energy by measuring the mass change of the ablated object before and after laser irradiation, and roughly obtain the power density of the spot by measuring the ablation trace distributed. The main disadvantage of this method is that it can only measure the total energy value of the laser and the distribution of optical power densit...

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide an online laser energy and optical power density time-space distribution measurement system, which solves the problem that the background technology can only measure the total energy value of the laser and the distribution of the optical power density in space, and cannot measure the optical power density in time. The distribution on the surface, or the time distribution of the optical power density cannot be measured; it cannot be measured online; there are many factors that affect the measurement results; the technical problem of low measurement accuracy

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