At present, the methods and instruments for measuring the precipitation on land may not effectively work in the offshore corrosion environment which is characterized by salt and humid. The research look at investigating the reliable and precision approach of measuring rainfall and a capacitive rain gauge for the marine environment is developed. Firstly, according to the working principle and performance requirements of the capacitive rain gauge, the modular mechanical structure and capacitance voltage conversion circuit of the rain gauge are designed, and the calibration and stability experiments of the prototype are tested to evaluate the measurement error and exam the accuracy of the rain gauge measurement results changing over time. Then, environmental adaptability experiment is carried out on the capacitive rain gauge to explore its performance in the environment of temperature and humidity changes as well as salt spray. Finally, the feasibility of the rain gauge used in the marine environment is verified by the sea test of the prototype. The measurement error of the developed capacitive rain gauge is less than 1 mm, which provides a realization method for the measurement of precipitation in the marine environment.

中文翻译：

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开发用于海洋环境的电容式雨量计

目前，用于测量陆地上的降水的方法和仪器可能无法在以盐和湿气为特征的海上腐蚀环境中有效地工作。该研究着眼于研究可靠且精确的降雨量测量方法，并开发了一种适用于海洋环境的电容式雨量计。首先，根据电容式雨量计的工作原理和性能要求，设计了该雨量计的模块化机械结构和电容电压转换电路，并进行了样机的校准和稳定性实验，以评估测量误差并检验。雨量计测量结果的准确性会随着时间而变化。然后，在电容式雨量计上进行了环境适应性实验，以探索其在温度和湿度变化以及盐雾环境下的性能。最后，通过原型的海上测试验证了雨量计在海洋环境中使用的可行性。研制的电容式雨量计的测量误差小于1 mm，为海洋环境中降水的测量提供了一种实现方法。