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Related Concept Videos

Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

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 distances...

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Related Experiment Video

Updated: Jun 15, 2026

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
09:38

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies

Published on: December 18, 2015

Pulsed CO(2) TEA laser rangefinder.

M J Taylor, P H Davies, D W Brown

    Applied Optics
    |March 4, 2010
    PubMed
    Summary
    This summary is machine-generated.

    A new compact laser rangefinder uses a sealed carbon dioxide (CO2) laser for eye-safe operation. Its 10.6-micrometer wavelength offers superior atmospheric transmission for reliable distance measurements.

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    Published on: May 30, 2019

    Area of Science:

    • Optics and Photonics
    • Laser Technology
    • Remote Sensing

    Background:

    • Development of compact and eye-safe laser rangefinding systems is crucial for various applications.
    • Traditional laser rangefinders may pose eye safety risks or suffer from atmospheric attenuation.
    • Carbon dioxide (CO2) lasers offer unique advantages in terms of wavelength and atmospheric transmission.

    Purpose of the Study:

    • To develop a compact laser rangefinder incorporating a sealed-off pulsed carbon dioxide (CO2) TEA laser.
    • To evaluate the system's performance using direct (non-heterodyne) detection.
    • To highlight the benefits of the 10.6-micrometer wavelength for atmospheric transmission.

    Main Methods:

    • Design and integration of a sealed-off pulsed CO2 TEA laser.
    • Implementation of a direct (non-heterodyne) detection scheme.
    • Analysis of system design parameters and performance metrics.

    Main Results:

    • Successful development of a compact, eye-safe laser rangefinder.
    • Demonstration of system functionality using direct detection.
    • Confirmation of superior atmospheric transmission at 10.6-micrometer wavelength.

    Conclusions:

    • The developed CO2 TEA laser rangefinder is a viable and eye-safe alternative for distance measurement.
    • Direct detection simplifies the system design while maintaining performance.
    • The 10.6-micrometer wavelength provides enhanced performance in various atmospheric conditions.