高精度新型雨量测量仪的设计

Design of the Novel Rain Gauge with High Precision

针对在野外环境中如何实时且准确地获取降雨资料的问题,在综合考虑各类雨量计的原理、使用方法以及优缺点的基础上,设计了一种基于应变式压力传感器的新型虹吸式雨量计。它具有传统虹吸式雨量计功耗低、测量不受降雨强度大小限制的优势,能够通过压力传感器保证测量精度,且采用最小二乘法对虹吸过程中的降雨进行补偿。经补偿算法优化后的数据通过数据采集器上的GSM模块实现数据的远距离传输,从而大大提高了新型虹吸式雨量计的应用范围。

To accurately acquire real-time rainfall information at field environment,having considered comprehensively the principles,operation methods,demerits and merits of various rain gauges;the novel siphon rain gauge based on strain pressure sensor is designed.This rain gauge keeps the advantages of low power consumption and no restriction for measurement upon rain intensity from traditional siphon rain gauges;and guarantees the measurement accuracy through the function of pressure sensor.In addition,the rainfall during siphon process is compensated by adopting the least square algorithm.The optimized data can be transmitted in long distance through the GSM module in data collector,thus the applicable scopes of the novel rain gauge are greatly enhanced.