权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Development of low-cost and light-weight hydrometeor imaging probe

低成本、轻量化水凝物成像探头的研制

基本信息

批准号：
22540448
负责人：
MINDA Haruya
金额：
$ 1.58万
依托单位：
Nagoya University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2010
资助国家：
日本
起止时间：
2010 至 2012
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22540448/
关键词：
気象学自然現象観測計測工学

项目摘要

Toward ballooning precipitation observation, we developed a new low-cost hydrometeor imaging probe, whose cost is nearly 10,000 Japanese yen. The probe is a sort of high-speed line-scanner, and it captures hydrometeor monochrome image with 128 horizontal pixels of 125 μm resolution and the slice-rate of 33 kHz currently. On the ground-base observation, the probe performs good as a disdrometer measuring raindrop-size distributions (DSD). For the DSD validation, we employed a commercially available disdrometer of Distromet RD80, then the validation demonstrates that the probe captures similar DSD shapes as in RD80. The results ensure a capture rate for raindrops to express reasonable DSD shape. In winter seasons, the probe well performed in low-temperature environment of -25 0 deg C and it successfully captured solid-state hydrometeors image such as snowflakes and graupels. In addition, the probe stably performed in a long period observation for several months, even if the probe is designed as disposal operation.

针对气球降水观测，我们开发了一种新型低成本的水流星成像探测器，其成本近1万日元。该探头是一种高速线扫描器，目前可捕获125 μm分辨率的128个水平像素的水流星单色图像，切片率为33 kHz。在地面观测中，探测器作为测量雨滴大小分布（DSD）的disdrometer表现良好。对于DSD验证，我们采用了市售的Distromet RD80 disdrometer，然后验证表明探针捕获了与RD80相似的DSD形状。结果保证了雨滴的捕获率，以表达合理的DSD形状。在冬季，探测器在-25 - 0℃的低温环境下表现良好，成功捕获了雪花、霰等固态水成物图像。此外，即使探头被设计为处置操作，探头也能在长达数月的长时间观察中稳定运行。