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Related Concept Videos

IR Spectrometers01:25

IR Spectrometers

3.1K
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...
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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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Temperature Measurement Sites01:14

Temperature Measurement Sites

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A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
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Related Experiment Video

Updated: Apr 23, 2026

Design, Instrumentation and Usage Protocols for Distributed In Situ Thermal Hot Spots Monitoring in Electric Coils using FBG Sensor Multiplexing
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[Research on spectrum correction algorithm of temperature measurement system based on FBG].

Zhi-Chao Liu, Jin-Hua Yang, Gao Wang

    Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
    |October 2, 2014
    PubMed
    Summary

    This study introduces a Fiber Bragg Grating system for efficient, large-scale temperature monitoring. The novel system offers high accuracy and anti-interference capabilities, reducing complexity and maintenance costs.

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    Area of Science:

    • Optoelectronics
    • Fiber optic sensing technology
    • Materials science

    Context:

    • Traditional temperature sensor deployment is complex and costly for large-scale, multi-point monitoring.
    • Real-time temperature data is crucial in various industrial and scientific applications.
    • Existing systems may lack robustness against electromagnetic interference and require frequent maintenance.

    Purpose:

    • To design and develop a novel temperature monitoring system utilizing Fiber Bragg Gratings (FBGs).
    • To overcome the limitations of conventional temperature sensors in terms of installation complexity and maintenance expenses.
    • To achieve accurate, real-time, multi-point temperature measurements in challenging environments.

    Summary:

    • A Fiber Bragg Grating (FBG) based system was developed for large-scale, multi-point temperature monitoring.
    • The system leverages the wavelength selectivity of FBGs to establish a temperature-wavelength relationship, with a spectrum correction algorithm achieving >99.7% fitting accuracy.
    • Experimental results demonstrate a wavelength shift of approximately 0.04 nm/°C and an error of <±0.3°C compared to standard devices, with strong anti-electromagnetic interference capabilities.

    Impact:

    • The developed system offers high-precision, large-scale, multi-point temperature detection with enhanced anti-jamming capabilities.
    • It significantly reduces installation complexity and maintenance costs associated with traditional sensor networks.
    • The system's innovation lies in its practical value for rapid deployment and reliable performance in diverse applications requiring accurate temperature monitoring.