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Vacuum low temperature microscopic visualizer

A vacuum low temperature, observer technology, applied in the field of microscopic observer, to avoid the effect of natural loosening

Inactive Publication Date: 2008-07-30
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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.

Method used

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  • Vacuum low temperature microscopic visualizer
  • Vacuum low temperature microscopic visualizer

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Embodiment Construction

[0025] The vacuum cryogenic microscopic observation instrument of the present invention is shown in FIG. 1 , and includes an observation chamber 1 , a cold trap 19 , a refrigeration system, a vacuum system, a computer control and a test recording system 33 . The observation room 1 is provided with a special microscope 2, an electronic scale 11, freezing and heating components, a winding lens shielding mechanism 27, and temperature and pressure sensing elements. An electronic scale 11 is arranged on the microscope stage 9, and the electronic scale 11 supports the loading tray 6 through the supports on both sides. The loading tray 6 is located below the microscope objective lens 3, and freezing and heating components are installed above the microscope loading stage 9. A coiled shielding mechanism 27 is arranged in front of the microscope objective lens 3, the cold trap chamber 19 communicates with the observation chamber 1, a vacuum valve 20 is provided between the observation ch...

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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 low temperature 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 of the 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/84G01N25/00
Inventor 张世伟徐成海张志军
Owner NORTHEASTERN UNIV
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