Temperature control device and temperature control method

Abstract

A temperature control device is characterized in that the temperature control device comprises a refrigerator, an intermediate thermal resistor, a temperature acquisition device and a control system.The intermediate thermal resistor is arranged between the refrigerator and a temperature control object. The temperature acquisition device is used for acquiring the temperatures of a cold head of therefrigerator and the temperature control object. The intermediate thermal resistor and the temperature acquisition device are connected with the control system. The control system is used for regulating the thermal resistance of the intermediate thermal resistor. According to the temperature control device, the thermal resistance of the intermediate thermal resistor is regulated through controlling of the control system. The cold amount which is transmitted from the cold head of the refrigerator to the temperature control object can be regulated. Accurate control and flexible change of the temperature can be automatically controlled. High operation stability and stable and reliable temperature control process are realized. Furthermore, compared with a soaking and heating system, the temperature control device has advantages of simple structure, easy operation, and no consumption of low-temperature liquid. Except for certain power supply required in the temperature control process, noother cost input is required, thereby realizing low cost. Furthermore the invention provides a temperature control method.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a temperature control and a temperature control method of a refrigerator. Background technique [0002] With the development of low-temperature biology, low-temperature materials science, low-temperature superconductivity and other aspects of research, the application of precise temperature control devices is becoming more and more extensive. For example, in cryobiology, the study of the characteristics of organisms at low temperatures, the preservation of living tissues and biological samples in specific temperature zones, precision medical instruments and other technologies will all be applied to precise temperature control at low temperatures; in the study of low temperature material properties , The precise control of low temperature can help to study the properties of materials in terms of resistance, magnetization, thermal conductivity and mechanics at low temperature...

AI Technical Summary

Problems solved by technology

The disadvantage of this device is that the control of the sample temperature can only be adjusted in the direction of high temperature, if it is adjusted in the direction of small temperature, a large amount of cryogenic liquid may be wasted

Images