Papers by Author: Heng Can Li

Abstract: Analysis and calculation of stray light is important to improve the performance of infrared detection system. In this article, we mainly discussed two sources: earth and atmosphere emission and thermal stray radiation. A method based on Monte Carlo ray-tracing in TracePro is proposed to calculate the irradiance of detector arisen from earth and atmosphere emission. The thermal stray light irradiance on detector can also be obtained by simulation in TracePro.

Abstract: During manufacturing processes, firstly the raw materials are mined or recovered from ore. Then the raw materials are machined to obtain the qualified component. In this paper, energy consumption of manufacturing processes is calculated. During the manufacturing processes, usually several stages are needed, which are rough machining, semi-finish machining and finish machining. After each stage is finished, the components are inspected and classified into three groups: (1) those below the specification, (2) those within the specification, (3) those above the specification. For each category, the corresponding energy consumption is calculated. At last, the energy consumption of whole manufacturing processes is obtained.