亚洲精品综合日韩中文字幕网站_精品综合久久久久97_中文在线天堂网www_久久精品免费一区二区三区_91久久国产综合精品女同国语_久久资源总站在线国产成人

您好, 歡迎來到化工儀器網(wǎng)

| 注冊| 產(chǎn)品展廳| 收藏該商鋪

13810654275

Download

首頁   >>   資料下載   >>   聲懸浮系統(tǒng)應(yīng)用文章:使用聲懸浮液滴的自由衰減振蕩同時測量表面張力和粘度

北京東方德菲儀器有限公司

立即詢價

您提交后,專屬客服將第一時間為您服務(wù)

聲懸浮系統(tǒng)應(yīng)用文章:使用聲懸浮液滴的自由衰減振蕩同時測量表面張力和粘度

閱讀:875      發(fā)布時間:2020-05-13
分享:

Oscillations of small liquid drops around a spherical shape have been of great interest to scientists measuring physical properties such as interfacial tension and viscosity, over the last few decades. A powerful tool for contactless positioning is acoustic levitation, which has been used to simultaneously determine the surface tension and viscosity of liquids at ambient pressure. In order to extend this acoustic levitation measurement method to high pressure systems, the method is first evaluated under ambient pressure. To measure surface tension and viscosity using acoustically levitated oscillating drops, an image analysis method has to be developed and factors which may affect measurement, such as sound field or oscillation amplitude, have to be analyzed. In this paper, we describe the simultaneous measurement of surface tension and viscosity using freely decaying shape oscillations of acoustically levitated droplets of different liquids (silicone oils AK 5 and AK 10, squalane,1-propanol, 1-butanol, 1-pentanol, 1-hexanol, 1-heptanol, and 1-octanol) in air. These liquids  vary in viscosity from 2 to about 30 mPa s. An acoustic levitation system, including an optimized standing wave acoustic levitator and a high-speed camera, was used for this study. An image analysis was performed with a self-written Matlab® code. The frequency of oscillation and the damping constant, required for the determination of surface tension and viscosity, respectively, were calculated from the evolution of the equatorial and polar radii. The results and observations are compared to data from the literature in order to analyze the accuracy of surface tension and viscosity determination, as well as the effect of non-spherical drop shape or amplitude of oscillation on measurement.

提供商

北京東方德菲儀器有限公司

下載次數(shù)

94次

資料大小

1.5MB

資料類型

PDF 文件

資料圖片

--

瀏覽次數(shù)

875次

會員登錄

請輸入賬號

請輸入密碼

=

請輸驗證碼

收藏該商鋪

標簽:
保存成功

(空格分隔,最多3個,單個標簽最多10個字符)

常用:

提示

您的留言已提交成功!我們將在第一時間回復(fù)您~
在線留言
夏津县| 台南县| 城市| 乐业县| 五家渠市| 塔河县| 故城县| 三门县| 十堰市| 凭祥市| 威信县| 高州市| 邹平县| 阿拉善右旗| 依安县| 林州市| 宁波市| 云浮市| 文昌市| 大丰市| 兴山县| 岗巴县| 泸溪县| 涟水县| 三穗县| 平原县| 三原县| 三穗县| 金门县| 和顺县| 周宁县| 兰坪| 犍为县| 武宣县| 宜城市| 竹溪县| 呈贡县| 芦溪县| 将乐县| 乡宁县| 乐至县|