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电镜开机后,要用半小时的时间才能将电子枪,镜筒抽至高真空:要用一个小时的时间将装有底片的照相室抽至高真空。整个过程需用1.5小时的时间,才能使电镜进入可以记录观察的正常工作状态。而关机后,油扩散真空泵需用45分钟的时间,进行冷却(此时空压机和机械泵仍在运转工作)。才能抽下闸刀,切断电镜总电源,使电镜处于不带电的安全状态。如将这二项工作放在上班时进行,则要占去一半的上班时间,电镜的有效观察时间亦只能占有一半的上班时间。这样的使用效率是很低的。联合装置就是针对我室电镜以上问题而设计制作的。采用此装置,可以将每天的有
It takes half an hour to turn the electron gun and barrel down to a high vacuum after the electron microscope is turned on: it takes one hour to pump the chamber with the film to a high vacuum. The whole process takes 1.5 hours to allow the electron microscope to record the normal working state of observation. The shutdown, the oil diffusion pump takes 45 minutes, cooling (air compressor and mechanical pump is still working at this time). In order to draw off the knife, cut off the total power electron microscope, electron microscope in a non-charged safe state. If these two tasks are carried out at work, then half of the working hours will be accounted for and the effective observation time of SEM will only account for half of the working hours. This use of efficiency is very low. Combination device is designed for the above problems in my room electron microscope. With this device, you can have everyday