赛默飞 FEI Tecnai T12 透射电子显微镜用途：用于材料、生物、地质等多领域微观分析。可观察材料微观结构、分析生物样品超微形态、探究地质样品矿物特征等，助力科研与质量检测。技术原理：发射电子束穿透样品，电子与样品相互作用，通过电磁透镜对透过样品的电子聚焦成像，以此获取样品内部结构信息。搭配能谱仪，可基于电子与样品作用产生的特征 X 射线进行成分分析。性能：加速电压范围 20 - 120kV 。点分辨率达 0.34nm，线分辨率 0.2nm ，能清晰呈现细微结构。最大样品倾斜角度 70°。可实现最高 700,000 倍的薄样品（<200nm）放大观察。配备能量色散 X 射线光谱（EDS）系统，能检测铍到铀等元素 。Product Name: Thermo Fisher FEI Tecnai T12 Transmission Electron MicroscopePurpose: It is used for microscopic analysis in multiple fields such as materials, biology, and geology. It can observe the microstructure of materials, analyze the ultrastructure of biological samples, explore the mineral characteristics of geological samples, etc., facilitating scientific research and quality inspection.Technical Principle: An electron beam is emitted to penetrate the sample. The electrons interact with the sample, and the electrons passing through the sample are focused and imaged by electromagnetic lenses to obtain the internal structure information of the sample. Equipped with an energy spectrometer, it can conduct composition analysis based on the characteristic X-rays generated by the interaction between electrons and the sample.Performance: The acceleration voltage range is 20 - 120kV. The point resolution reaches 0.34nm, and the line resolution is 0.2nm, which can clearly show fine structures. The maximum sample tilt angle is 70°. It can achieve up to 700,000 times magnification for thin samples (<200nm). It is equipped with an energy - dispersive X - ray spectroscopy (EDS) system that can detect elements from beryllium to uranium.