Temperature accurate control device used for integrated cavity spectrum technology isotope analysis

Abstract

A temperature accurate control device used for an integrated cavity spectrum technology isotope analysis comprises a one-time sealing shell of an optical path system and a second-time sealing system of temperature stable and accurate control. The optical path system is installed inside the one-time sealing shell and the temperature accurate control device is characterized in that an optical laser, a distributed feed back (DFB) optical laser light source, a light beam converging collimating lens assembly, a laser path, an optical cavity, a laser beam converging lens and an InGaAs detector are integrated inside the optical path system. The optical laser, the DFB optical laser light source, the light beam converging collimating lens assembly, the laser path, the optical cavity, the laser beam converging lens and the InGaAs detector are all in the nitrogen condition to be prevented from being interfered by outside gas. The second-time sealing system of the temperature stable and accurate control comprises a second-time sealing shell, platinum resistor temperature sensors, rigid supports, semiconductor refrigeration piles, net-shaped heat exchangers, fans and shock absorption foams and further comprises a temperature controller, a driving circuit module, wherein the temperature controller and the driving module are arranged outside the second-time sealing shell and various control commands and electrical signals are all connected in a sealed mode through cables. The temperature accurate control device used for the integrated cavity spectrum technology isotope analysis has the advantages of being simple in structure, convenient to operate, quick in response, good in resistance to shock, high in temperature control precision and good in stability.

Description

technical field [0001] The invention relates to a precise temperature control device, in particular to a precise temperature control device applied in the field of gas isotope analysis of integrating cavity spectroscopy technology. Background technique [0002] In recent years, the application of stable isotope analysis in the field of environmental science and environmental protection has been paid more and more attention, especially in the study of atmosphere, soil, water quality and ecological environment. For example, the use of stable isotope abundance changes to study and indicate environmental pollution sources and pollution levels; the use of stable isotope tracers can identify the source of greenhouse gas emissions and analyze human activities such as fossil fuel combustion, cement production, animal husbandry and agricultural production The contribution to greenhouse gas emissions can not only accurately estimate the total emissions of each emission source, but als...

AI Technical Summary

Problems solved by technology

[0005] The technical problem of the present invention is to overcome the deficiencies of the prior art and provide a precise temperature control device for the isotope analysis of the integral cavity spectroscopy technique, so as to solve the problem that the isotope analysis of the existing integral cavity spectroscopy technique is affected by the temperature during the measurement process Accuracy, Stability, and Zero-Drift Issues

Images