A Microcomputer Data-Acquisition System for Real-Time Processing of Raindrop Size Distribution Measured with the RD69 Distrometer

Abstract

The disdrometer is an instrument used worldwide to measure the size distribution of raindrops at ground level. In this paper, a data-acquisition and real-time processing system designed for disdrometer measurements is presented. It is based on a portable microcomputer which acquires and processes the data, records the size distribution every minute, and displays and prints the distributions and selected integrated parameters of the precipitation. The last part of the paper presents examples of studies performed with the system on varied types of rainfall.