相关实验视频
Updated: Jun 21, 2025
13:31
High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis
Published on: December 22, 2015
15.0K
一种区域监测型无隙成像光谱仪
Rui Ouyang1,2, Duo Wang3, Longxu Jin1,2
1Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China.
Sensors (Basel, Switzerland)
|July 13, 2024
概括
这项研究引入了一种新的成像光谱仪,用于对特定区域的持续监测. 开发的仪器有效地捕获观察区域内的目标的光谱数据,与参考数据达到0.9226的高相关系数.
科学领域:
- 光学工程是指光学工程.
- 频谱学是一种光谱学.
- 遥感 遥感 遥感 遥感
背景情况:
- 持续监测预先确定的区域对于检测新出现的目标或事件至关重要.
- 现有系统可能缺乏针对性光谱分析所需的特异性或效率.
研究的目的:
- 开发和评估一种创新的成像光谱仪系统,用于对特定区域的持续监测和光谱分析.
- 为了证明系统在识别区域和快速捕获光谱数据方面的能力.
主要方法:
- 区域监测型无隙成像光谱仪的详细设计和制造.
- 使用设计工具进行光学模拟,以验证系统规格 (F-number 5,焦距 100 mm,FOV 3x7,400-600 nm).
- 使用调制传输函数 (MTF) 进行图像质量评估和图像处理以提取光谱数据的评估.
主要成果:
- 设计的光谱仪符合指定的光学参数和图像质量标准,由光路图和MTF图证实.
- 该仪器成功地确定了特定地区,并从这些地区的目标中获取了光谱数据.
- 在收集的光谱数据和参考数据之间获得了0.9226的相关系数,验证了测量准确性.
结论:
- 开发的成像光谱仪系统对于持续监测和预先确定区域的光谱分析是有效的.
- 该仪器在准确捕获光谱数据方面表现出高性能,适合在观察到的区域内识别目标.
相关概念视频
01:26Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation
208
Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
208
01:22Atomic Emission Spectroscopy: Instrumentation
359
The instrumentation of atomic emission spectrometry (AES) involves various components, including atomization devices that convert samples into gas-phase atoms and ions. There are two main types of atomization devices: continuous and discrete atomizers. Continuous atomizers, like plasmas and flames, introduce samples in a constant stream, while discrete atomizers inject individual samples using syringes or autosamplers. The most common discrete atomizer is the electrothermal atomizer.
359
01:26Raman Spectroscopy Instrumentation: Overview
324
A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
324
01:25IR Spectrometers
1.1K
There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...
1.1K
01:14UV–Vis Spectrometers
1.3K
The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell.
1.3K
01:16Mass Spectrometers
5.3K
This lesson details the instrumentation of a mass spectrometer—a physical instrument to perform mass spectrometry on analyte molecules and record the characteristic mass spectra. This is achieved via three chief functions:
5.3K