中国少妇a片bbbbbb洗澡,岳打开双腿开始配合交换,中文字幕无码乱人伦,国产乱人对白A片

官方微信|手機(jī)版

產(chǎn)品展廳

產(chǎn)品求購企業(yè)資訊會展

發(fā)布詢價單

化工儀器網(wǎng)>產(chǎn)品展廳>物理特性分析儀器>表面/界面性能測定儀>開爾文探針系統(tǒng)> 專業(yè)銷售 英國Uniscan Instruments SKP370 ...

專業(yè)銷售 英國Uniscan Instruments SKP370 掃描開爾文探針系統(tǒng)

具體成交價以合同協(xié)議為準(zhǔn)

聯(lián)系我們時請說明是化工儀器網(wǎng)上看到的信息,謝謝!


 北京東方安諾生化科技有限公司位于北京市朝陽區(qū),專業(yè)致力于各類儀器儀表、機(jī)電工控產(chǎn)品的代理、直銷和服務(wù)。安諾科技擁有國內(nèi)外眾多品牌的中國區(qū)代理權(quán),以及一百多人的的采購、銷售和技術(shù)服務(wù)團(tuán)隊,為中國企業(yè)客戶提供高性能的儀器儀表、機(jī)電產(chǎn)品及其他工業(yè)產(chǎn)品。

   安諾科技的客戶廣泛分布于衛(wèi)生、建筑、環(huán)保、質(zhì)檢、鐵路、安監(jiān)、工商、農(nóng)業(yè)、科研教育、商檢、煙草、啤酒、飲料、食品、石油、化工、塑料、橡膠、冶金、電力、紡織、機(jī)械、玻璃、造紙、陶瓷、汽車、船舶、包裝、污水處理等行業(yè)。安諾科技自成立以來發(fā)展迅速,已經(jīng)累積數(shù)千家優(yōu)質(zhì)的企業(yè)客戶以及上萬家供應(yīng)商,建立了直銷體系及遍布全國的經(jīng)銷網(wǎng)絡(luò)。

  安諾科技的采購團(tuán)隊通過直接從國內(nèi)外廠家采購,較大化壓縮了商品流通環(huán)節(jié),降低了客戶采購成本,通過有競爭力的價格和優(yōu)良的服務(wù),安諾科技成為許多企業(yè)客戶的信賴的*供應(yīng)伙伴。
 

進(jìn)口環(huán)保檢測,農(nóng)林儀器,工業(yè)檢測儀器

SKP370

Scanning Kelvin Probe System

The Scanning Kelvin Probe (SKP) is a non-contact, non-destructive instrument designed to measure the surface work function difference between conducting, coated, or semi-conducting materials and a metallic probe. The technique operates using a vibrating capacitance probe, and through a swept backing potential, the work function difference is measured between the scanning probe reference tip and sample surface. The work function can be directly correlated to the surface condition. A unique aspect of the SKP is its ability to make measurements in a humid or gaseous environment.  Applications include: -

 
scanning kelvin probe 
Figure 1
  • Filiform corrosion studies
  • Transport process of hydrated ions
  • Study of fuel cell catalysts
  • Forensic detection of fingerprints
  • Charaterisation of photovoltaic materials
  • Femi-level mapping

The principle of operation of the Kelvin Probe is illustrated in Figure 1.

The figure represents three energy level diagrams depicting two metals having a constant separation, work functions and Fermi levels of (φ1, E1) and (φ2, E2), respectively.

The first diagram shows the metals with no electrical contact and differing Fermi levels. When electrical contact is made (middle diagram) the flow of charge allows the Fermi levels to equalize and gives rise to a surface charge.

 

The potential difference, VC, is related to the difference in work function:

-eVC = φ1 - φ2 (1) where e is the electron charge.

The inclusion of an external backing potential, VB (final diagram), allows for a nulling of the surface charge at a unique point where VB = - VC. This point represents the work function difference between the two materials.  Work function can then be used to determine the corrosion potential (Ecorr) at a specific point using the relationship:

Ecorr = Constant + (φ1 - φ2) (2) where (φ1 - φ2) is the measured work function between the probe and the sample. 

 
filiform corrosion 
Figure 2

The constant can be determined by measuring the corrosion potential using a conventional reference electrode in an electrolyte. Once the constant is known for a particular sample, Ecorr can be calculated directly from the SKP data without an electrolyte.

 

Figure 2 shows the Scanning Kelvin Probe Measurement of filiform corrosion on Aluminium

 
 

Figure 3

Figure 3 shows a surface map of the Scanning Kelvin Probe signal recorded over the heat affected zone of welded material.

 
 

Figure 4


 

Figure 4 shows a surface map of the Scanning Kelvin Probe signal recorded over a printed circuit board.

如果您對本品感興趣請與我公司
北京東方安諾生化科技有限公司
:    -8007


: www.annovatech.com
: caoye513



化工儀器網(wǎng)

采購商登錄
記住賬號    找回密碼
沒有賬號?免費注冊

提示

×

*您想獲取產(chǎn)品的資料:

以上可多選,勾選其他,可自行輸入要求

個人信息:

溫馨提示

該企業(yè)已關(guān)閉在線交流功能

51福利国产在线观看午夜天堂| 食戟之灵第二季| 欧美性生交a片免费看| 天天躁日日躁狠狠躁| 日本丰满熟妇bbxbbxhd| 亚洲va久久久噜噜噜久久狠狠| 讲讲和对象第一次的细节知乎| 大尺度做爰啪啪高潮床戏古代小说| 中文字幕色av一区二区三区| 人妻在厨房被色诱 中文字幕| 啊灬啊灬啊灬快灬深视频直播| 天干天干天啪啪夜爽爽av| 男女裸体做爰猛烈全过程免费视频| 国产亚洲一区二区手机在线观看| 中文字幕无码乱人伦| 亚洲AV舒服丰满在线播放| 理论片87福利理论电影| 上司人妻被下属侵犯hd| 胸部隐隐约约的疼怎么回事| 日本精品一区二区三区| 亚洲国产成人精品无码区花野真一| 无套无码孕妇啪啪| 国产亚洲精品久久久久久| 国子监来了个女弟子电视剧免费观看| 在电影院里拨开内裤挺进| 久久国产精品无码一区二区三区| 少妇我被躁爽到高潮a片| 欧美直播APP| 啊灬啊灬啊灬快灬深用力| 性饥渴的女邻居hd| 阿娇艳z门照片无码av4i| 大肥女高潮bbwbbwhd视频| 久久人妻少妇嫩草av无码专区| 青青河边草免费观看视频免费| 亚洲 欧美 中文 日韩| 13一14XXX欧美| 精品成在人线av无码免费看| 二狗的妖孽人生| 苍井空亚洲精品aa片在线播放| 婷婷色国产偷v国产偷v| 亚洲色婷婷一区二区三区|