Measurements of Rainfall and Raindrop Size Distribution Based on Piezoelectric Effect

被引：0

作者：

Zhu L. ^{[1
]}

Luo T. ^{[1
]}

Lin X. ^{[1
]}

机构：

[1] School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing

来源：

Zhendong Ceshi Yu Zhenduan/Journal of Vibration, Measurement and Diagnosis | 2020年 / 40卷 / 01期

关键词：

Piezoelectric effect; Raindrop size; Raindrop size distribution; Rainfall; Rainfall measurement;

D O I：

10.16450/j.cnki.issn.1004-6801.2020.01.023

中图分类号：

学科分类号：

摘要：

In order to solve the problem of simultaneous monitoring of macro and micro characteristics of rainfall, a piezoelectric effect-based rainfall parameter sensing method is proposed. Firstly, to eliminate the boundary effect of the sensor, a piezoelectric array transducer is used to accurately measure the end momentum of falling raindrops. Then the raindrop size is obtained by using the calibrated response function. Secondly, a raindrop aliasing recognition method based on the true effective voltage signal is proposed to calculate the number of raindrops. Finally, raindrop size distribution is obtained by synthesizing the size and quantity of raindrops. Rainfall and intensity are obtained by accumulating the volume of raindrops. Mathematical simulation and experimental results show that the proposed scheme can automatically and continuously measure and record the size and the number of raindrops, rainfall and real-time rainfall intensity with high measurement accuracy for heavy rain, light rain and micro-characteristics of rainfall. © 2020, Editorial Department of JVMD. All right reserved.

引用

页码：155 / 162

页数：7

共 16 条

[1]

Kathiravelu G., Lucke T., Nichols P., Rain drop measurement techniques: a review, Water, 8, 29, pp. 1-20, (2016)

[2]

Lofflermang M., Joss J., An optical disdrometer for measuring size and velocity of hydrometeors, Journal of Atmospheric & Oceanic Technology, 17, 2, pp. 130-139, (2000)

[3]

Qu L., Huang Y., Tang C., Et al., Rapid and continuous identification method of linear array CCD dynamic raindrop image based on FPGA, Opto-Electronic Engineering, 39, 10, pp. 103-110, (2012)

[4]

Xu Z., Zheng G., Ultrasonic rain gauge based on acoustic self-calibration principle, Automation & Instrumentation, 3, pp. 13-15, (2012)

[5]

Tokay A., Bashor P.G., Wolff K.R., Error characteristics of rainfall measurements by collocated Joss Waldvogel disdrometers, Journal of Atmospheric & Oceanic Technology, 22, 5, pp. 513-527, (2004)

[6]

Salmi A., New piezoelectric vaisala raincap precipitation sensor, The 19th AMS Conference on Hydrology, pp. 45-69, (2005)

[7]

Bagree R., Characterization and design of a readout circuit for a piezoelectric-based acoustic disdrometer, Microelectronics & Computer Engineering, 2, 1, pp. 4-9, (2012)

[8]

Jayawardena A.W., Rezaur R.B., Measuring drop size distribution and kinetic energy of rainfall using a force transducer, Hydrological Processes, 14, 1, pp. 37-49, (2015)

[9]

Lane J.E., Kasparis T., Metzger P.T., Et al., Insitu, disdrometer calibration using multiple DSD moments, Acta Geophysica, 62, 6, pp. 1450-1477, (2014)

[10]

Liu J., Zhou X., Common discussion of the terminal velocity of the falling raindrops, Physics and Engineering, 20, 5, pp. 17-19, (2010)

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