设计描述：

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试验用冻干显微镜的设计
摘 要
显微镜是最常用的助视光学仪器，且常被组合在其他光学仪器中。显微镜作为金相、医学和化学分析的常用仪器，广泛地应用在工厂、医院的检验分析室，研究所、高校及中学的实验室。因此，了解并掌握它的构造原理和调整方法，了解并掌握其放大率的概念和测量方法，不仅有助于加深理解透镜的成像原理，也有助于正确使用其他光学仪器。其原理和机构是集精密设计、工程光学于一体的仪器设备。一个完整的显微镜系统设计是十分复杂的，涉及到光学设计、机械设计、电路设计等多方面知识。
真空冷冻干燥技术发展到今天，已在许多领域得到成功应用。但与其它干燥方法相比，设备投资依然较大、能源消耗及产品成本依然较高，限制了该技术的进一步发展。因此，如何在确保产品质量的同时，实现节能降耗，降低生产成本是真空冷冻干燥技术当前面临的最主要的问题。另外，由于冻干机所使用场所的特殊性，设备要求十分苛刻，运行环境恶劣，这都对冻干机的运行可靠性、合理性、方便性提出了更高的要求。新技术、新标准、新法规的出台，都对冻干技术提出了更多的要求。
本设计由于世界上没有成品说以主要涉及冷冻干燥参数和便于观察冷宫干燥过程的设计。
关键字：冻干显微镜、冷冻干燥技术

Designed by freeze-drying microscopy test
Abstract
Microscope is the most commonly used visual optical instruments, and are often combined in other optical instruments. As metallographic microscope, medicine and chemical analysis of commonly used instruments, widely used in factories, hospitals, inspection, research institutes, colleges and middle school's laboratory. Therefore, understand and grasp its structure principle and adjust method of understanding and mastering its magnification concept and measurement method, not only helps to deepen understanding of lens imaging principle, also helps to correct use of other optical instruments. The principle and institution is integrating precision design, engineering, optical instruments and equipment. A complete microscope system design is very complicated, involving optical design, mechanical design, circuit design and other aspects of knowledge.
Vacuum freeze drying technology development today, has been successfully applied in many fields. But compared with other drying methods, the equipment investment is still large, energy consumption and product cost is higher, limiting the further development of the technology. Therefore, how to ensure the quality of products at the same time, to realize saving energy and reducing consumption, reduce the production cost is vacuum freeze drying technology facing the main problem. In addition, due to the particularity of freeze-drying machine used by the site, the equipment is a tall order, bad running environment, running reliability and rationality of all of this to the lyophilizer, convenience, higher requirements are put forward. New technology, new standard, the new rules, puts forward more requirements on freeze-dry technology.
This design because there is no product said to mainly relates to freeze drying parameters and easy to observe the design limbo drying process in the world.
Key words: freeze-dried microscope  freeze-drying technology

 
目  录
1  绪论 1
 1.1设计背景 1
 1.2冻干显微镜现状 2
 1.3冻干显微镜应用 2
 1.4设计内容 3
2  冻干显微镜的工作原理设计 4
 2.1冻干基本原理 4
 2.2冻干显微镜的基本原理及组成 4
 2.3冻干显微镜工作过程 5
 2.4 冻干显微镜的主要技术参数 5
3  冻干显微镜结构设计 9
 3.1 真空室设计 9
   3.1.1 真空室室体强度计算 9
   3.1.2 密封系统结构设计 10
   3.1.3 冻干显微镜镜头的设计 11
 3.2 冻干显微镜传动机构 11
   3.2.1 工作台调整的传动机构计算 11
   3.2.2 载物台横纵向运动距离 14
 3.3  冻干显微镜冷阱设计 15
   3.3.1对冷阱的要求 15
   3.3.2冷阱的结构设计 15
   3.3.3水汽凝结器所需的制冷量和蒸发温度 16
   3.3.4结冰厚度、冰表面对应的温度和压力 17
   3.3.5物料冻干的加热系统设计 18
   3.3.6加热系统参数设计计算 18
4  载物台的设计 19
  4.1载物台的技术要求 19
  4.2载物台的设计 19
  4.3载物台的检验 19
5 结论与展望 22
  5.1 结论 22
  5.2展望 22
参考文献 23
致  谢 24
毕业设计（论文）独创性 25
毕业设计（论文）知识产权声明 26