日立 HITACHI H-7000 透射电子显微镜。用途：适用于生物学、材料学等领域。在生物学中，可用于观察病毒、细菌等微小颗粒形态以及生物样品超薄切片；在材料学方面，能分析材料微观结构，如纳米材料、金属材料内部结构等。技术原理：通过电子枪发射电子束，电子束经加速后穿透样品，与样品相互作用产生不同信号，如透射电子、散射电子等。这些信号再经电磁透镜聚焦成像，从而获取样品微观结构信息。性能：晶格分辨率达 2.04 Å ，放大倍数在 1000 - 600000 倍之间，加速电压范围为 25 - 125KV 。可配备多种样品台，如倾斜样品台、加热样品台、冷却样品台等，满足不同实验需求 。Product Name：Hitachi HITACHI H - 7000 Transmission Electron Microscope.Purpose：It is suitable for fields such as biology and materials science. In biology, it can be used to observe the morphology of tiny particles like viruses and bacteria, as well as the ultrathin sections of biological samples. In materials science, it can analyze the microstructure of materials, such as the internal structures of nanomaterials and metal materials.Technical Principle：An electron gun emits an electron beam. After being accelerated, the electron beam penetrates the sample and interacts with the sample to generate different signals, such as transmitted electrons and scattered electrons. These signals are then focused and imaged by electromagnetic lenses to obtain the microstructure information of the sample.Performance：The lattice resolution reaches 2.04 Å, the magnification ranges from 1000 to 600000 times, and the acceleration voltage ranges from 25 to 125KV. It can be equipped with various specimen stages, such as tilting specimen stage, heating specimen stage, cooling specimen stage, etc., to meet different experimental requirements.