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        DI Nanoscope Ⅳ型掃描探針顯微鏡

        作者:        發布于:2010-09-11

          

            型號:DI Nanoscope

          國別、廠家美國維易科精密儀器有限公司

          基本功能原子力顯微鏡(AFM),掃描隧道顯微鏡(STM)

          成像模式:接觸模式、輕敲模式、相位成像模式、液體環境下成像模式、橫向力/摩擦力顯微鏡、磁力顯微鏡、靜電力顯微鏡

          主要技術指標:

            樣品尺寸:直徑<15mm,厚度<5mm

            橫向分辨率:<0.2nm

            掃描范圍:(x,y10μm/125μm,(z2.5μm/5μm

            掃描探針顯微鏡是幾種以檢測探針與樣品間相互作用為特征的顯微鏡的總稱。

          

          工作原理:使用一個一端固定而另一端裝有針尖的彈性微懸臂來檢測樣品表面形貌或其它表面性質。當針尖和樣品靠近時,它們之間的作用力會引起微懸臂發生形變,一束激光照射到微懸臂的背面,微懸臂將激光束反射到光電檢測器,微懸臂的微小變化會引起激光束在光電檢測器上的較大位移,然后產生可測量的電壓差,通過測量檢測器電壓對應樣品掃描位置的變化,就可得到樣品的表面形貌和其相對應的力、電、磁等物性信息。廣泛用于材料、生命科學及聚合物的研究。

          可獲得的信息:

             1、 薄膜、納米材料、生物材料或塊體材料(d1cm,h5mm,表面粗糙度4um)的表面形貌,立體形貌,section分析,粗糙度信息,顆粒度分析等結果;

             2、 磁性材料的形貌和磁疇結構;

             3、 鐵電、壓電材料的形貌、電疇結構和表面電勢分布;

             4、 納米壓痕計算材料的微觀硬度;

             5、 液態模式下測量樣品的微觀形貌;

             6、 力曲線的測試,可得表面微觀硬度、彈性模量、楊氏模量及黏度等信息。

          

          

          Model: DI Nanoscope

          Manufacturer: Veeco, USA

          Function: AFM, STM

          Imaging mode: Contact mode, Tapping mode, Phase imaging, Lateral force microcopy, Magnetic force microcopy, Electric force microcopy

          Specification:

            Sample size: <15mm in diameter;  <5mm in thickness

             Lateral resolution: <0.2nm

              Scan size: x,y10μm/125μm,(z2.5μm/5μm

            SPM consists of a family of microscopy forms where a sharp probe is scanned across a surface and some interactions between the probe and sample are monitored. AFM operates by scanning a tip attached to the end of a cantilever across the sample surface while monitoring the change in cantilever deflection with a split photodiode detector. The reflected laser beam is deflected in a regular pattern over a photodiode array, generating a sinusoidal electronic signal. It reveals informations about the vertical height of the sample surface and some characteristics (include elasticity, magnetic, and electric forces) of the sample material itself. AFM has a broad applications in materials, life science, and polymers research.。

          

          

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