A Design Method of Irradiation Attenuator for Xenon Light Source Solar Simulator

Abstract

A design method for the radiation attenuator of a xenon lamp light source solar simulator, which relates to the technical field of optical instrument design, provides a design method for an attenuator that realizes the large-scale adjustment of the irradiance of the solar simulator and the uniformity of the radiation, including the following Steps: Determine the shape and installation position of the attenuator; use the etendue to theoretically analyze the attenuator to determine the light-passing area; use the ring-band method to study the radiation distribution at the attenuator, in order to improve the uniformity of the radiation, and specifically design Structural parameters such as the number, size, and arrangement of openings of the attenuator. The radiation attenuator of a xenon lamp light source solar simulator of the present invention is easy to install, realizes wide-range adjustment of irradiance while ensuring high stability and high uniformity of radiation, and is of great significance for improving the performance of the solar simulator.

Description

technical field [0001] The invention relates to the technical field of optical instrument design, and relates to a design method of a solar simulator attenuator with low irradiance attenuation function, which can realize wide-range and high-uniformity adjustment of irradiance. Background technique [0002] As a detection device that simulates the characteristics of solar radiation indoors, the solar simulator is widely used in aerospace, meteorological science, new material development, agriculture and forestry breeding and other fields. [0003] In order to eliminate the instability problem under low irradiance caused by adjusting the xenon lamp power supply current, an attenuator is added to the solar simulator, and the output light of the solar simulator can be attenuated by replacing the attenuator with different attenuation rates. However, at present, the attenuator mostly adopts a mesh structure of equal size and equal spacing to attenuate the output light as a whole. ...

AI Technical Summary

Problems solved by technology

However, at present, the attenuator mostly adopts a grid hole structure of equal size and equal spacing to attenuate the output light as a whole. The design does not consider increasing the edge radiation energy at the light entrance of the integrator, and does not consider the impact on the uniformity of irradiation.

[0004] At present, with the utilization and development of solar energy, especially the development and production of low-light photodetectors, it is necessary for a solar simulator to realize a large-scale adjustment of irradiation and ensure a high uniformity of irradiation. The current technical level unable to meet actual needs

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