Developing a sonic rain gauge
Due to climate changes, the importance of precipitation measurements, for scientific studies and agricultural purposes, have increased significantly over the years. However, existing instruments have a multitude of limitations that results in a huge decline in precision. With the advancement in tech...
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2018
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sg-ntu-dr.10356-747082023-03-04T18:44:22Z Developing a sonic rain gauge Soh, Jun Ming Shu Jian Jun School of Mechanical and Aerospace Engineering DRNTU::Engineering Due to climate changes, the importance of precipitation measurements, for scientific studies and agricultural purposes, have increased significantly over the years. However, existing instruments have a multitude of limitations that results in a huge decline in precision. With the advancement in technology, an alternative solution was proposed. The aim is to measure rainfall intensity by using acoustic signals, through the use of a sonic rain gauge. Acoustic signals are generated when the raindrops impact the rain gauge surface. An increase in intensity will result in a higher values of acoustic signals to be produced. In order to achieve this, the relationship between the kinetic energy of raindrops and sound pressure has to be determined and analysed under various rainfall conditions. Using Arduino software, the data was collected and compared with the data obtained during actual rainfall events. The proposed rain gauge was also compared with existing acoustic rain gauges. The advantages, disadvantages and potential developments of the proposed rain gauge were evaluated and further discussed. Bachelor of Engineering (Mechanical Engineering) 2018-05-23T04:38:52Z 2018-05-23T04:38:52Z 2018 Final Year Project (FYP) http://hdl.handle.net/10356/74708 en Nanyang Technological University 98 p. application/pdf |
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DRNTU::Engineering Soh, Jun Ming Developing a sonic rain gauge |
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Due to climate changes, the importance of precipitation measurements, for scientific studies and agricultural purposes, have increased significantly over the years. However, existing instruments have a multitude of limitations that results in a huge decline in precision. With the advancement in technology, an alternative solution was proposed. The aim is to measure rainfall intensity by using acoustic signals, through the use of a sonic rain gauge. Acoustic signals are generated when the raindrops impact the rain gauge surface. An increase in intensity will result in a higher values of acoustic signals to be produced. In order to achieve this, the relationship between the kinetic energy of raindrops and sound pressure has to be determined and analysed under various rainfall conditions. Using Arduino software, the data was collected and compared with the data obtained during actual rainfall events. The proposed rain gauge was also compared with existing acoustic rain gauges. The advantages, disadvantages and potential developments of the proposed rain gauge were evaluated and further discussed. |
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Shu Jian Jun |
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Shu Jian Jun Soh, Jun Ming |
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Final Year Project |
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Soh, Jun Ming |
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Soh, Jun Ming |
title |
Developing a sonic rain gauge |
title_short |
Developing a sonic rain gauge |
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Developing a sonic rain gauge |
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Developing a sonic rain gauge |
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Developing a sonic rain gauge |
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developing a sonic rain gauge |
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2018 |
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http://hdl.handle.net/10356/74708 |
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