Vacuum low temperature microscopic visualizer

Abstract

The invention relates to a vacuum low temperature micro visualize, which comprises a sight chamber, a cold trap, a refrigeration system, a vacuum system, and a control and teat recording system. A microscope, an electronic scale, a cooling and heating element, a winding lens shielding mechanism, a temperature sensing element, and a pressure sensing element are arranged in the sight chamber. A lowtemperature condensing coil is arranged in a cold trap chamber, the refrigeration system is connected with a heating refrigeration board and a nozzle of the sight chamber as well as the condensing coil of the cold tap chamber. A vacuum pump is connected with a pumping hole of the cold trap chamber, the computer control and teat recording system is connected with a thermocouple, the electronic scale, and the sight chamber, and is connected with an image collector above the microscope through an image data processor. The invention can be used for studying the heat-transfer and mass-transport process of various solids and liquid materials under the condition of low temperature and vacuum, and for timely and continuously observing the mass, the temperature, the pressure, and the micro image ofthe observed materials, which are recorded and stored by a computer, thereby realizing the numeralization operation.

Description

technical field [0001] The invention belongs to the technical field of observation instruments, in particular to a microscopic observation instrument used in vacuum and low temperature conditions. Background technique [0002] Out of the need for in-depth research on the heat and mass transfer process of substances, researchers began to pay more attention to the influence of material microstructure on heat and mass transfer process, and the influence of heat and mass transfer process on material microstructure. Therefore, it is very necessary to observe the change of material microstructure in the process of heat and mass transfer online in real time, especially the change of material microstructure in the process of heat and mass transfer under special conditions such as vacuum and low temperature. For example, during the rapid freezing, vacuum freeze-drying, and rehydration of various biological tissue materials, it is hoped to observe the morphological changes of the biol...

AI Technical Summary

Problems solved by technology

At present, there is no observation instrument that can continuously observe the microstructure changes of materials in various heat and mass transfer processes in real time under special conditions such as vacuum and low temperature.

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