Ms. Ting Yang Profile

Ting Yang

at Beijing Institute of Space Mechanics & Electricity

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Publications (2)

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Proceedings Article | 12 April 2023 Paper

Development of on-board radiation calibration device for water color and water temperature scanner

H. Dong, M. Lian, J. Dong, X. Chen, Y. Li, T. Yang, M. Zhai, H. Wang, Y. Liu, S. Tang

Proceedings Volume 12565, 125650X (2023) https://doi.org/10.1117/12.2661744

KEYWORDS: Black bodies, Calibration, Temperature metrology, Body temperature, Emissivity, Cameras, Remote sensing, Scanners, Sensors, Vacuum

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Ocean remote sensing satellites have the advantages of long-distance, non-contact observation with large field of view, all-day, all-weather and real-time imaging, and have become an important means of global marine environment monitoring. The development of marine remote sensing in my country is going through a leap from "following" - "running side by side" - "leading". Quantitative application is the characteristic of marine satellite data application. In order to obtain the corresponding relationship between the input radiation and output of the remote sensing camera, and use it for quantitative inversion of the radiation information of the remote sensing target, the radiation calibration of the remote sensing camera is required. In this paper, starting from the high quantitative calibration index requirements of the new generation of ocean water color and water temperature scanner payload, a set of on-board radiation calibration device is designed and developed to realize the full spectrum, full aperture and full optical path high-precision calibration of the payload. The accuracy of the on-board radiation calibration device: the black body emissivity is 0.98, the measurement and temperature control accuracy is better than 0.05K, the temperature stability is better than 0.05K/30min, and the temperature uniformity is better than 0.2K.

Proceedings Article | 27 March 2022 Paper

Development technology of large surface source infrared calibration blackbody on satellite

H.W. Dong, H. Li, M.L. Shi, F.D. Li, L. Wang, X. Chen, T. Yang, Y.X. Liu, M.L. Lian, Z.C. Shi

Proceedings Volume 12169, 121693T (2022) https://doi.org/10.1117/12.2623813

KEYWORDS: Black bodies, Body temperature, Calibration, Temperature metrology, Resistance, Control systems, Satellites, Platinum, Infrared radiation, Cameras

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This article elaborates on the working principle of the on-board blackbody calibration system, through the high-performance design and accurate index accuracy of the key indicators of high and low large-aperture surface blackbody (effective emission surface normal emissivity, temperature stability, temperature uniformity) Effective control, so as to obtain high and low temperature blackbody normal emissivity 0.98, temperature stability ≤ ± 0.15K/30min, temperature uniformity ±0.25K high-performance calibration indicators. By adding different thermal control measures to the high temperature black body and the low temperature black body, the temperature stability of the working temperature control interval required by each can be obtained. Among them, the temperature of the high-temperature black body is realized by applying a heat sheet with a reasonable cloth, while the temperature of the low-temperature black body is lower than the ambient temperature in the camera, and the temperature compensation is realized by installing a heat sink in the cold space, and then attaching the heating sheet to the heat pipe. For both high temperature blackbody and low temperature blackbody, precision platinum resistance thermometers are used to accurately monitor their temperature in real time. By reasonably arranging the position of the platinum resistance and the platinum resistance test line, the blackbody temperature measurement accuracy can be controlled within ±0.05°C. In the end, the high-stability large-aperture blackbody calibration system through the comprehensive work of various structural components, thermal control components and the main optical system to obtain the high-precision infrared temperature calibration requirements required by the load, which provides for subsequent model development. Successful engineering experience.

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