三级片视频播放,精品三级片在线观看,A级性爱视频,欧美+日韩+国产+无码+小说,亲子伦XX XX熟女,秋霞最新午夜伦伦A片黑狐,韩国理伦片漂亮的保拇,一边吃奶一边做边爱完整版,欧美放荡性护士videos

您好, 歡迎來到化工儀器網

| 注冊| 產品展廳| 收藏該商鋪

13810654275

Download

首頁   >>   資料下載   >>   聲懸浮系統應用文章: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

聲懸浮系統應用文章: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:886      發布時間: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

94次

資料大小

1.5MB

資料類型

PDF 文件

資料圖片

--

瀏覽次數

886次

產品展示

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您~
在線留言
主站蜘蛛池模板: 城市| 长顺县| 万州区| 会东县| 太仆寺旗| 吉安县| 托克托县| 腾冲县| 延川县| 兴山县| 星子县| 富源县| 田东县| 渝中区| 蒲江县| 利津县| 苍梧县| 吴江市| 方山县| 新兴县| 平昌县| 元谋县| 文化| 特克斯县| 乌鲁木齐市| 滨州市| 嘉禾县| 巩义市| 梁平县| 莱芜市| 五峰| 卫辉市| 遂溪县| 平湖市| 古田县| 布尔津县| 怀来县| 柳林县| 二手房| 壤塘县| 湟源县|