Dust-proof and moisture-proof device for high-precision regulation and control of ambient temperature of precision instrument

A technology of precision instruments and ambient temperature, which is applied in the direction of temperature control, instruments, and temperature control by electric means, which can solve the problems of inability to provide a working environment, high energy consumption, and long realization cycle, and achieves the ability to overcome the inability to adjust the ambient temperature, The effect of high temperature control accuracy and low price
CN112731985AActive Publication Date: 2021-04-30INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
Publication Date
2021-04-30

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Abstract

The invention provides a dust-proof and moisture-proof device for high-precision regulation and control of the ambient temperature of a precision instrument. The device comprises a dual-channel PID temperature controller, a temperature control circuit, a temperature measurement module, a sealed environment box, a temperature transfer fan, a semiconductor thermoelectric module TEC, cooling fins, a filter screen, a reserved window and an instrument base. According to the device, the temperature in the sealed environment box is obtained through the temperature measurement module, and the PID temperature controller controls the temperature control circuit to enable the semiconductor thermoelectric module TEC to work in a refrigeration or heating mode, so that the temperature of the sealed environment box is accurately regulated and controlled. As the device only exchanges heat with the outside and does not exchange substances, a long-term stable temperature, humidity and dust-free environment can be provided for a laser or other temperature-sensitive precision instruments. The temperature control device provided by the invention is compact in structure, stable in performance, low in power consumption and high in temperature control precision, and can improve the performance stability and measurement precision of a precision instrument and prolong the service life of the precision instrument.
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Description

technical field

[0001] The invention belongs to the field of environmental temperature control of precision instruments, and in particular relates to a dust-proof and moisture-proof device for high-precision control of the environmental temperature of precision instruments. Background technique

[0002] Since the working environment temperature of the laser will affect the spectral stability of the output laser, in an environment with unstable temperature, the change of the ambient temperature will interfere with the operation of the laser, and the change of the ambient temperature will cause the drift of the laser wavelength and power, which will affect the use of the laser . During laser pumping, the drift of the laser wavelength will affect the absorption probability of atoms and molecules to the incident light, and the power drift will affect the pumping efficiency. In addition, changes in ambient temperature will also affect the working status of optical components in ...

Claims

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