
掃描電子顯微鏡
The process of polymerization of silicic acid was observed by transmission electron microscope (TEM) and scanning electron microscope (SEM).
用透射電子顯微鏡(TEM)和掃描電子顯微鏡(SEM)觀察了矽酸溶膠的聚合過程。
In contrast, the scanning electron microscope reveals a world familiar to the way we naturally see things, a world with outer surfaces and in three dimensions.
與此相反,掃描電子顯微鏡揭示世界的方式接近于我們自然地觀察物體的方式,是一個具有外表和三維的世界。
In this article, we'll look at 10 scientific laws and theories that you might want to brush up on, even if you don't find yourself, say, operating a scanning electron microscope all that frequently.
在本文中,我們将會談到10條你或許想知道的科學定律和理論。 這麼說吧,即便你沒有發現自己是如此頻繁地使用掃描電子顯微鏡,你也會想知道這些。
In this paper, we introduce the applicable range of scanning electron microscope in synthetic fiber field, and provide some new achievement of shape and structure of synthetic fiber.
介紹了掃描電子顯微鏡在合成纖維領域中的應用,并提供了合成纖維的形狀和結構的部分新成就。
The morphology and crystal structure of solvent induced crystalline PET were stu***d by X-ray diffraction and scanning electron microscope.
應用X射線衍射和掃描電子顯微鏡研究了溶劑誘導結晶PET的形态和結晶結構。
The preparation of porous anodic alumina film is stu***d with sulfuric acid as electrolyte and the morphology of the film is characterized by field-emission scanning electron microscope(FE-SEM).
以硫酸為電解液研究了多孔陽極氧化鋁膜的制備,并采用場發射掃描電子顯微鏡對多孔氧化鋁膜的形貌進行表征。
This paper deals with observation by light and scanning electron microscope on the spore morphology. sporoderm structure and spore-surface ornamental design of Funaria hygrometrica.
本文報道了用光學顯微鏡和掃描電子顯微鏡對葫蘆藓孢子形态、孢壁及紋飾等較詳細觀察的結果。
The morphology and structural transformation of the fiber were investigated by scanning electron microscope, X-ray scattering and infrared spectrum respectively.
通過掃描電子顯微鏡研究其形态,X-射線衍射、紅外光譜等分析研究其聚集态結構變化。
Pollen grains of 20 species of 5 subgenera in the genus Rhododendron L. were observed by scanning electron microscope(SEM). Most of them(16 species)were examined for the first time.
利用掃描電子顯微鏡對5個亞屬20種杜鵑花屬植物的花粉形态進行了觀察和比較研究,其中大部分(16種)為首次報道。
Surface micro topography photos are obtained by scanning electron microscope(SEM), and statistic parameters of topography are measured by surface profile instrument.
通過掃描電子顯微鏡(SEM)獲得加工表面微觀形貌圖像和采用表面輪廓儀測得形貌統計參數。
The paper introduces the structure and ingre***nt distribution of the bonding zone Ni-stainless steel composite plate in different states by metallograph and scanning electron microscope.
用金相和掃描電子顯微鏡對不同狀态的鎳-不鏽鋼複合闆結合區的組織和成分分布進行了研究。
The surface morphology of wear scar, nanoparticles and its element distribution have been tested and analyzed by scanning electron microscope(SEM) and energy dispersive spectrometry(EDS).
使用掃描電子顯微鏡(SEM)和能譜分析(EDS)等觀察分析磨損鋼球表面的磨痕形貌、化學元素和納米粒子形态。
The microstructures of the composites were analyzed by transmission electron microscope, scanning electron microscope and the energy spectrum method.
用透射電子顯微鏡、掃描電子顯微鏡和能譜分析進行顯微結構分析。
This scanning electron microscope image illustrates one attempt to do so.
這張掃描電子顯微鏡圖像展示了對古迹保護的一次嘗試。
This article analyses the surfac appeaance of the treated rubber sample with SEM (Scanning Electron Microscope), and connects the surface appearance to the person's hand feeling.
本文利用掃描電子顯微鏡對被處理過的橡膠表面進行顯微分析,得出表面結構與使用者手感的關系。
The deformation and fracture of mild steel under high frequency bending fatigue has been stu***d by optical microscope, scanning electron microscope and microhardness determination.
用光學、掃描電子顯微鏡及顯微硬度計,研究了低碳鋼在高頻彎曲疲勞過程中的形變及斷裂。
The pore features of 47 lump coal samples have been stu***d systematically by using mercury porosimeter, scanning electron microscope and quantitative determination of microscopic composition of coal.
根據47個煤樣的壓汞實驗、掃描電子顯微鏡觀測,以及顯微煤岩組份定量等手段,作者首次系統地研究了塊煤的孔隙特征。
By using the Monte Carlo method, we calculate the spatial resolution of the scanning electron microscope using low loss energy and coaxial backscattered electrons.
用蒙特卡羅方法模拟計算了利用高能同軸背散射電子的掃描電子顯微鏡的空間分辨率。
The products were well-characterized by X-ray diffractometer (XRD) and scanning electron microscope(SEM).
所得産物用X射線衍射儀(XRD)和掃描電子顯微鏡(SEM)進行了表征。
Aemission spectrometer, micro-hardometer, optical microscope and scanning electron microscope were used to analyze the reason of crack on connecting rod unit assembly for piston of car engine.
采用直讀光譜儀、顯微硬度機、光學顯微鏡和掃描電子顯微鏡等分析手段,對失效的汽車發動機活塞連杆總成斷裂原因進行了分析。
Using the scanning electron microscope, the microstructure of coal is stu***d in the range of micron, as fracture, breccia, cataclast, mylonite and slip plane.
利用掃描電子顯微鏡研究煤中微米級構造變形,揭示了煤的顯微構造變形現象,如裂隙、角礫、碎粒、糜棱質、滑移面等。
The worn surfaces of the composites were observed on a scanning electron microscope.
采用掃描電子顯微鏡觀察分析了複合材料磨損表面形貌。
Chip behaviors were analyzed using scanning electron microscope(SEM), to study the effects of applied load, scan cycles and scanning direction on nanomachining of Al and Cu samples.
切屑形态通過掃描電子顯微鏡(SEM)進行觀察,分析了不同垂直載荷、循環次數和針尖加工方向下鋁銅被加工表面的切屑形成過程。
The fracture surfaces of the specimens were observed by a scanning electron microscope(SEM). The AE signals were distinguished as being released from(several) special types of damage.
用掃描電子顯微鏡(SEM)觀測試樣的斷裂表面,對産生于若幹特殊損傷類型的AE信號進行了鑒别。
The microstructure of multilayers was characterized by high-resolution transmission electron microscopy, X-ray diffraction, scanning electron microscope and energy dispersive spectrometer.
利用透射電子顯微鏡、X射線衍射儀、掃描電子顯微鏡和X射線能量色散譜儀分析了多層膜的微結構。
Field emission scanning electron microscope(FESEM) has been used to investigate the fine structure of Fe-based metal film interface and its cross-section.
采用場發射掃描電子顯微鏡(FESEM),研究了鐵基金屬包膜界面及其斷面的精細結構。
A scanning electron microscope (SEM) image of the influenza virus.
流感病毒的一張掃描電子顯微圖像。
These sections are dissected, using a laser, into slices a millimetre or less thick, and then scanned again, either with the micro-CT or with a scanning electron microscope.
采用激光将這些小岩石塊切分成一毫米或不太厚的薄片,然後用微CT機或電子顯微掃描鏡對其再次掃描。
|scanning electronic microscope;掃描電子顯微鏡
掃描電子顯微鏡(Scanning Electron Microscope,簡稱SEM)是一種利用聚焦的高能電子束掃描樣品表面,通過檢測産生的信號來獲取微觀形貌和成分信息的高分辨率成像設備。以下從核心原理、主要結構及應用場景三個方面詳細解釋:
核心原理
SEM通過電子槍發射電子束,經電磁透鏡聚焦成納米級探針,在樣品表面逐點掃描。電子與樣品相互作用會産生二次電子、背散射電子、特征X射線等信號。其中:
主要結構
應用場景
分辨率優勢:SEM的典型分辨率可達1-10納米,比光學顯微鏡(約200納米)高兩個數量級。其景深大,特别適合粗糙表面成像,例如金屬斷口分析。現代SEM還可結合聚焦離子束(FIB)實現納米級加工與三維重構。
掃描電子顯微鏡是一種高級顯微鏡,用于在高分辨率下觀察物質的表面。以下是有關該詞彙的更詳細解釋:
掃描電子顯微鏡 (Scanning Electron Microscope) 的縮寫為SEM,是一種常見的科學工具,被廣泛用于材料科學、生物學、醫學和其他領域的研究中。
掃描電子顯微鏡可以通過電子束掃描樣品表面,從而可以獲得高清晰度圖像。
掃描電子顯微鏡是一種使用電子束掃描樣品表面的顯微鏡。通過電子束與樣品的相互作用,可以得到高清晰度的表面圖像,并且可以進行更深入的表面分析。
掃描電子顯微鏡是一種高級顯微鏡,通常用于研究微觀結構。它可以提供比光學顯微鏡更高的分辨率,并且可以掃描大範圍的表面。
掃描電鏡、電子掃描顯微鏡
光學顯微鏡
【别人正在浏覽】