掃描單光應用於高光譜響應量測

Applying Tunable Light Source with Monochromator for Calibration of Hyperspectral Imaging

劉兆峰(Chao-Feng Liu) ； 黃紜其(Yun-Chi Huang) ； 呂國豪(Guo-Hao Lu) ； 翁俊仁(Chun-Jen Weng) ； 黃升龍(Sheng-Lung Huang)

《科儀新知》 233期 (2022/12) Pp. 70-78

摘要

本文將介紹如何建置與調整掃描單光，並說明此架構所用到的儀器原理與操作，透過LabVIEW撰寫人機控制介面，將此系統應用於檢測HSI相機的光譜響應量測。實驗架構使用單光儀搭配光學元件建立高解析度的系統，光學元件包含可調狹縫、對焦鏡頭、弧光燈源、濾光片建立而成，實驗中透過光譜儀量測此系統發出的600nm波段的單光，最後將優化後不同波長的單光導入HSI相機量測470－800nm波段的光譜響應，觀察發現HSI相機的響應的半高寬在4nm－8nm之間。

並列摘要

This article will introduce how to build and adjust the tunable light source with monophotometer, and explain the principle and operation of the instrument used in this architecture. Through LabVIEW to write a human-machine control interface, this system is applied to the measurement of spectral response of the HSI camera. The experimental architecture uses tunable light source and optical components to establish a high-resolution system. The optical components include an adjustable slit, a focusing lens, an arc light source, and a filter. In this experiment, a spectrometer is used to measure the 600 nm emitted by the system. Finally, the optimized tunable light source in different wavelength bands is imported into a HSI camera to measure the spectral response in band 470-800 nm . It is observed that the FWHM of the HSI camera's response is between 4 nm and 8 nm.