扫描非线性 meaning in English
scan nonlinearity
Examples
- The natures of the probe and formation mechanisms in these techniques are different ; therefore , the images of spm can reflect different properties of sample surface . in this work , related properties of ferroelectric thin film were investigated as followed : the main factors determining the image formation of piezoresponse force microscopy ( pfm ) and scanning nonlinear dielectric microscopy ( sndm ) were studied . to avoid the misreading of the same conductive tip with different state , a new method of polarization distribution mapping with nonconductive tip was proposed , and the result of experiment demonstrated that the polarization distribution of ferroelectric thin films could be characterized well by the new approach
本工作主要分为以下几个部分:从研究铁电薄膜的压电响应力显微镜( pfm )和扫描非线性介电显微镜( sndm )成像的影响因素入手,讨论了针尖对成像质量的影响;为降低实验成本、减小导电探针针尖状态变化对铁电薄膜微区电性能测试的负面影响,提出了以非导电探针检测微区极性分布的方法,并在现有spa - 300hv型spm的实验平台上以pfm模式成功实现了新方法对铁电薄膜极性分布的表征。 - But influenced by a great deal of factors in laser and only strong stability scanning as one again , for instance , the un - stability of laser instrument , inconsistency of decaying to the laser of every part , etc . in the scanner , can lead to the fact intensity of laser on piece fluctuate , cause , scan systematic formation of image quality drop finally
另外,又针对激光扫描系统中的由于扫描非线性等固有因素的存在,所导致扫描成像灰度畸变的现象,提出了一种利用数字补偿校正技术对固有因素进行激光光束光强的逐点补偿的新方法。本设计不仅适用于激光扫描系统,对于其它各个应用领域,都有参考价值。 - Different principles and modes of sfm are discussed . the imaging principle of piezoresponse atomic force microscopy , scanning nonlinear dielectric microscopy , kelvin force microscopy are theoretically analysed , and the influence of voltage , contact force and microcantilever on the domain investigation is studied . the parameters of instrument are optimized using the same sample
探讨sfm检测电畴的不同机理和成像模式，从理论上分析了压电响应原子力显微镜（ pfm ） 、扫描非线性介电显微镜（ sndm ）和开尔文力显微镜（ kfm ）检测电畴的成像原理；实验研究了电压、作用力、探针等的改变对电畴成像的影响。