工業技術研究院

技術簡介

本發明係有關於一種氣體吸收光譜量測系統及其量測方法，係透過模擬資料庫及／或實驗平台，建立不同溫度及壓力條件下的高解析度氣體標準圖譜、矩陣資料庫與演算法，來進行多種氣體之定性與定量解析及計算。

Abstract

The disclosure is directed to a gas absorption spectrum measuring system and a measuring method thereof, wherein the high-resolution gas standard spectra, a matrix database and an algorithm under the condition of different temperatures and pressures are created through a simulation database and/or an experiment platform to perform qualitative and quantitative analysis and calculation of multiple gases.

技術規格

氣體吸收光譜量測系統，包括光源、光源控制器、光強度偵檢器、計算模組。光源用以發出光波、光源控制器用以調控光波之波長、光強度偵檢器用以偵測由光源產生並通過目標氣體的光強度。計算模組包括數值處理器以及儲存單元。儲存單元用以儲存光譜資料庫，數值處理器用以擬合目標氣體之吸收光譜與光譜資料庫中之標準圖譜，並進行相似度比對運算，以取得殘差值最小的目標氣體的溫度及壓力，並根據目標氣體的最小殘差值，決定目標氣體的物種濃度。

Technical Specification

The system includes a light source, a light source controller, a light intensity detector and a computing module. The light source is configured to emit a light. The light source controller is configured to regulate a wavelength of the light. The light intensity detector is configured to detect an intensity of the light, which is generated by the light source and passes through at least one target gas. The computing module includes a numerical processor and a storage unit. The storage unit is configured to store a spectral database. The numerical processor is configured to fit an absorption spectrum of the at least one target gas and a standard spectrum in the spectral database, to perform a similarity comparison operation to obtain a temperature, and a pressure of the at least one target gas with a minimum residual value, and to determine a species concentration of the at least one target gas according to the minimum residual value of the at least one target gas.

技術特色

 以HITRAN建立模擬光譜資料庫(以物種濃度、溫度、壓力等為變數)。  光學實驗平臺進行物種濃度、溫度、壓力等參數控制，擷取對應之光譜訊號建立高解析度實驗光譜資料庫。  已自行開發高解析度光譜儀，完成實際環境測試與驗證。

應用範圍

遙測式、定點式與可攜式氣體光譜儀監測器廠商，並推廣至監測應用系統廠商之高解析紅外線氣體感測修正技術

接受技術者具備基礎建議（設備）

解析度1 cm-1以上氣體紅外線光譜儀。

接受技術者具備基礎建議（專業）

具備氣體紅外線光譜定性與定量分析之經驗。

聯絡資訊