US 12,345,630 B2
Real-time spectrum testing device for volatile condensable material in wide temperature range and testing method
Liwei Sun, Shanghai (CN); Lei Ding, Shanghai (CN); Libing Li, Shanghai (CN); Enguang Liu, Shanghai (CN); and Fengli Wang, Shanghai (CN)
Assigned to SHANGHAI INSTITUTE OF TECHNICAL PHYSICS, CHINESE ACADEMY OF SCIENCES, Shanghai (CN)
Appl. No. 18/036,291
Filed by SHANGHAI INSTITUTE OF TECHNICAL PHYSICS, CHINESE ACADEMY OF SCIENCES, Shanghai (CN)
PCT Filed Dec. 7, 2020, PCT No. PCT/CN2020/134216
§ 371(c)(1), (2) Date May 10, 2023,
PCT Pub. No. WO2022/116224, PCT Pub. Date Jun. 9, 2022.
Claims priority of application No. 202011396927.3 (CN), filed on Dec. 3, 2020.
Prior Publication US 2024/0011899 A1, Jan. 11, 2024
Int. Cl. G01N 21/35 (2014.01); G01N 1/42 (2006.01); G01N 1/44 (2006.01)
CPC G01N 21/35 (2013.01) [G01N 1/42 (2013.01); G01N 1/44 (2013.01); G01N 2021/3595 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A real-time spectrum testing device for a volatile condensable material in a wide temperature range, comprising a testing module, a vacuum module, a temperature control module, and a Fourier Transform Infrared Spectroscopy (FTIR) spectrometer, wherein the testing module comprises a testing cabin, a replaceable standard testing lens, and a stage; the vacuum module comprises a vacuum inner cavity and a vacuum system; the vacuum inner cavity is installed in the testing cabin in a thermally insulated manner, and is connected to the vacuum system outside the testing cabin by means of a vacuum system interface installed on a cabin wall of the testing cabin; the stage is horizontally installed in the vacuum inner cavity; and the standard testing lens is vertically installed in the vacuum inner cavity;
the temperature control module comprises a refrigeration system and a temperature control system; the refrigeration system is connected to the standard testing lens by means of a refrigeration system interface installed on the cabin wall of the testing cabin; and the temperature control system is connected to the stage by means of a temperature control system interface installed on the cabin wall of the testing cabin;
the FTIR spectrometer is configured to test infrared spectral characteristics of a volatile condensable material on the standard testing lens to obtain a spectral test result; and
two infrared perspective windows are further symmetrically installed on two opposite side walls of the testing cabin; a geometric center of each of the infrared perspective windows is as high as a light port of the FTIR spectrometer, and a height of the standard testing lens is adjusted, so that light passing through the two infrared perspective windows at the same time also pass through the standard testing lens.