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Microcalorimeter

A micro calorimeter and calorimeter technology, applied in the field of calorimeter, can solve the problems of large size and complex structure of the instrument, and achieve the effect of small size and compact structure

Active Publication Date: 2018-01-16
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the need to set two sample platforms in the calorimeter, its structure is more complicated and the size of the instrument is larger

Method used

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and embodiment the present invention is further described:

[0019] The micro calorimeter comprises a calorimeter body 1, a temperature control system 8 and a data processing system 9, the calorimeter body 1 includes an outer box body 11 and an inner box body 12 made of a thermally conductive material, the outer box The body 11 is provided with a heating block 111, the inner box body 12 is provided with a thermocouple 121, one detection end of the thermocouple 121 is connected with the inner box body 12, and the other detection end of the thermocouple 121 is connected with the sample 122 to be tested, The outer box body 11 or the inner box body 12 is also provided with a thermometer 113; the temperature control system 8 includes a temperature detection terminal 81 and a temperature control terminal 82, the temperature detection terminal 81 is connected with the thermometer 113, and the temperature control system 8 is connect...

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Abstract

The invention relates to a miniature calorimeter, which includes a calorimeter body, a temperature control system and a data processing system. The calorimeter body includes an outer box body and an inner box body. The outer box body is provided with a heating block, and the inner box body is provided with a thermocouple. , one detection end of the thermocouple is connected to the inner box body, the other detection end is connected to the sample to be tested, and a thermometer is also set on the outer box body or the inner box body; the temperature detection end of the temperature control system is connected to the thermometer, and the temperature control end is connected to the thermometer. The heating block is connected; the temperature data receiving end of the data processing system is connected with the thermometer, and the temperature difference data receiving end is connected with the thermocouple. The calorimeter has only one tested sample platform. The temperature difference between the tested sample and the inner box of the instrument is obtained through a thermocouple, and then combined with the standard sample to calibrate the device coefficient, the temperature rise and fall of the tested sample can be obtained. The amount of heat change in the process, and then draw the DSC curve. Compared with traditional instruments, the invention has a more compact structure and small size.

Description

technical field [0001] The invention relates to a calorimeter for thermal analysis of materials, in particular to a miniature calorimeter with a simplified structure. Background technique [0002] In the field of material thermal analysis, the commonly used calorimetric analysis method is differential scanning calorimeter (DSC). The detection principle is to put the reference object and the test sample into a box and slowly heat up or cool down. During the heating and cooling process, record the difference between the heat absorbed or released by the test sample and the reference object, and then draw the heat difference and The temperature relationship curve, that is, the DSC curve. By analyzing the DSC curve, we can know whether the test sample produces heat absorption or heat release during the temperature rise and fall process, and can quantitatively measure the amount of heat absorbed or released. [0003] The instrument that uses the DSC method for thermal analysis o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/20
Inventor 王绍兰王孝军
Owner SICHUAN UNIV
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