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Related Concept Videos

Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

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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...
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Applications of IR Spectroscopy: Overview01:11

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The non-destructive nature and ability to provide valuable chemical information make IR spectroscopy a versatile technique with broad applications in various scientific and industrial fields. IR spectroscopy is commonly used to identify and characterize organic and inorganic compounds. It provides information about the functional groups present in a molecule and the bonding between atoms. This helps in the structural elucidation of compounds during organic synthesis, pharmaceutical research,...
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Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview01:13

Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview

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Attenuated total reflectance (ATR) infrared spectroscopy is a powerful analytical technique used to study the composition of materials. It is widely employed in chemistry, materials science, forensic science, and other fields where sample characterization is required. ATR has several advantages over traditional transmission IR spectroscopy, including the requirement of little to no sample preparation and the ability to analyze a wide range of samples.
The ATR process begins by directing a beam...
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Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

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Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over short...
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Raman Spectroscopy: Overview01:20

Raman Spectroscopy: Overview

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The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
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Multispectral Light Detection and Ranging Technology and Applications: A Review.

Narges Takhtkeshha1,2, Gottfried Mandlburger2, Fabio Remondino1

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Summary
This summary is machine-generated.

Multispectral LiDAR (MSL) systems integrate height and spectral data for advanced 3D mapping. This review covers MSL technology, applications in forestry, LULC classification, and more, highlighting its potential for precise nD mapping.

Keywords:
hyperspectral LiDARintensitymultispectral laser scanningpoint cloudssensors

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Area of Science:

  • Remote Sensing
  • Geospatial Technology
  • Photogrammetry

Background:

  • Light Detection and Ranging (LiDAR) provides 3D data, often combined with optical imagery for spectral information.
  • Multispectral LiDAR (MSL) systems simultaneously acquire height and spectral data across various wavelengths.
  • Existing reviews lack a comprehensive overview of modern MSL technology and its applications.

Purpose of the Study:

  • To provide an exhaustive overview of the state-of-the-art in Multispectral LiDAR (MSL) systems.
  • To review the latest technologies for MSL data acquisition.
  • To analyze the diverse applications of MSL technology.

Main Methods:

  • Systematic literature review of MSL systems and their technological advancements.
  • In-depth analysis of MSL applications across multiple scientific and technical domains.
  • Identification of potentials, opportunities, and challenges associated with MSL data.

Main Results:

  • MSL technology enables simultaneous acquisition of geometric and spectral information.
  • Successful applications demonstrated in ecology, forestry, object and LULC classification, change detection, bathymetry, topographic mapping, archaeology, geology, and navigation.
  • MSL systems offer precise nD mapping capabilities from a single data source.

Conclusions:

  • MSL is a revolutionary technology for integrated spatial-spectral data acquisition.
  • The technology presents significant potential for enhanced remote sensing applications.
  • Further research is needed to fully explore the opportunities and address the challenges of MSL systems.