传感技术学报2012，Vol.25Issue(6)：761-765,5.DOI:10.3969/j.issn.1004-1699.2012.06.009
一种基于压力敏感元件的降雨传感器
The Development of a Novel Automatic Rainfall Gauge Based on the Sensitive Pressure Sensor
摘要
Abstract
In order to overcome the disadvantages of existing rain gauges including the obvious inaccuracy while rainfall intensity is strong, and their measurement range is small, a novel automatic rainfall gauge based on the sensitive pressure sensing component has been developed. The hardware of the developed gauge includes a rainfall signal transformer based on a sensitive pressure sensor,a electrical signal processing unit built up with differential amplifier and linear transform circuit,and a computation and procession centre based on the higher speed and lower power consumption embedded processor ARM. The generalized regression neural network( GRNN) is applied in the software of the developed gauge to realize the approximation of function, and a accuracy measurement model has been built by training the GRNN with small data sample. By measuring the pressure and the duration response generated by the rainfall on the sensitive pressure sensor, and calculating with the trained GRNN model, the accuracy rainfall could be obtained. The test results show that the developed rainfall gauge not only could be applied to measure the heavy rain, but also has the merits of wider measurement range and more precision.关键词
传感器技术/压力敏感元件/雨量计/广义回归神经网络Key words
sensor technology/ pressure sensing component/ rainfall gauge/ generalized regression neural network分类
机械制造引用本文复制引用
漆随平,王东明,孙佳,籍艳,崔天刚..一种基于压力敏感元件的降雨传感器[J].传感技术学报,2012,25(6):761-765,5.基金项目
山东省自然基金项目(ZR2010DL003) （ZR2010DL003）
