日立 HITACHI S-3000H 扫描电子显微镜用途：广泛用于材料分析、生命科学、半导体研究等领域。可观察各类样品微观表面结构，如材料的微观缺陷、生物样本的细胞形态，助力科研人员获取样品表面形貌与成分分布信息。技术原理：电子枪发射电子束，在加速电压作用下，经电子透镜聚焦后扫描样品表面。样品受激发产生二次电子、背散射电子等信号，仪器收集并放大这些信号，转化为图像呈现样品微观特征。性能：加速电压范围 0.3 - 30 kV ；在 25kV 高真空模式下，二次电子像分辨率为 3.5nm ；样品最大直径 150mm、高 20mm ；配备手动控制 xyz 样品台，可 360° 旋转，倾斜角度 0 - 60° 。Product Name: Hitachi HITACHI S-3000H Scanning Electron MicroscopePurpose: It is widely used in fields such as materials analysis, life sciences, and semiconductor research. It can observe the micro surface structures of various samples, such as micro defects in materials and cell morphology of biological samples, helping researchers obtain information on sample surface morphology and component distribution.Technical Principle: The electron gun emits an electron beam. Under the action of the acceleration voltage, it is focused by the electron lens and then scans the sample surface. The sample is excited to generate signals such as secondary electrons and backscattered electrons. The instrument collects and amplifies these signals and converts them into images to present the micro characteristics of the sample.Performance: The acceleration voltage ranges from 0.3 - 30 kV. The resolution of the secondary electron image is 3.5 nm in the 25 kV high - vacuum mode. The maximum sample size is 150 mm in diameter and 20 mm in height. It is equipped with a manually controlled xyz sample stage that can rotate 360° and has a tilt angle of 0 - 60°.