Adaptive control method for spectrograph applicable to cold environment

Abstract

The invention discloses an adaptive control method for a spectrograph applicable to a cold environment and relates to an automatic control technology. The adaptive control method comprises the following steps: 1) roughly measuring the intensity of incident light; 2) determining an overall output maximum value of the spectrograph; 3) decomposing overall output of the spectrograph; 4) determining the best exposure time top of the spectrograph; and 5) carrying out adaptive measurement on the spectrograph, setting the exposure time of the spectrograph as top, and carrying out measurement. The adaptive control method disclosed by the invention has the beneficial effects that by virtue of a way of estimating the intensity of the incident light and automatically regulating the exposure time, the spectrograph can be automatically adaptive to variation of external environment temperature and light field intensity, especially in a severe cold environment, the adaptive measurement is carried out, and measurement errors, caused by temperature variation, of devices are reduced, so that a satisfying measurement result is obtained.

Description

technical field [0001] The invention relates to automatic control technology, in particular to an adaptive control method for spectrometers suitable for cold environments. Background technique [0002] With its rich strategic resources and unique strategic geographical location, the polar region has attracted countries around the world to take it as their key national development strategy. The large amount of sea ice in the polar regions has become a hotspot in polar research because of its significance to the polar marine ecosystem, polar upper ocean processes, atmosphere-sea ice-ocean interactions, and global climate change. Studies have shown that significant changes have taken place in Arctic sea ice in the past few decades. The coverage and area of ​​sea ice have been significantly reduced, and a large number of multi-year ice has melted and replaced by more annual ice. One reason the variation is important is solar radiation. Therefore, long-term in situ measurement ...

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Problems solved by technology

Therefore, the spectrometer used to measure the solar radiation intensity in the polar sea ice environment must carry out special temperature correlation research and calibration to ensure the correctness and effectiveness of the measurement results, which is currently impossible for most commercial spectrometers on the market.

In addition, in the polar sea ice environment, the solar radiation intensity varies greatly in time and space, which brings great challenges to the long-term continuous measurement of solar radiation intensity

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