日立 HITACHI S-6700 扫描电子显微镜用途：广泛应用于材料科学、半导体、生物学、纳米技术等领域，可用于观察样品微观形貌、分析结构以及成分测定 。技术原理：电子枪发射电子束，经电磁透镜聚焦、加速后轰击样品表面。电子与样品相互作用产生二次电子、背散射电子等信号，探测器收集这些信号并转化为图像，以此呈现样品微观特征。性能：分辨率可达 3nm（加速电压 15kV 时，二次电子像）；放大倍数范围为 10 - 30 万倍；加速电压 0.5 - 30kV；样品室可容纳较大尺寸样品，能灵活进行多样品操作，满足不同研究需求 。Product Name: Hitachi HITACHI S-6700 Scanning Electron MicroscopePurpose: Widely used in fields such as materials science, semiconductors, biology, and nanotechnology. It can be used to observe the micro - morphology of samples, analyze structures, and determine compositions.Technical Principle: The electron gun emits an electron beam, which is focused and accelerated by electromagnetic lenses and then bombards the sample surface. Electrons interact with the sample to generate signals such as secondary electrons and backscattered electrons. Detectors collect these signals and convert them into images to present the micro - characteristics of the sample.Performance: The resolution can reach 3nm (secondary electron image at an acceleration voltage of 15kV); the magnification range is 10 - 300,000 times; the acceleration voltage is 0.5 - 30kV; the sample chamber can accommodate relatively large - sized samples and can flexibly perform various sample operations to meet different research needs.