Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

956
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...
956
Temperature Measurement Sites01:14

Temperature Measurement Sites

3.0K
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...
3.0K
IR Spectrometers01:25

IR Spectrometers

2.1K
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...
2.1K
Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

1.6K
Body temperature can be assessed using various devices and measured in Celsius or Fahrenheit.
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
1.6K
Distance Corrections01:15

Distance Corrections

238
To achieve precise distance measurements, especially in surveying and construction, certain corrections must be applied to account for potential sources of error like the standardization errors, temperature variations, and slope adjustments.Standardization error emerges when measurement equipment undergoes changes, such as wear, repairs, or weather impacts. To address this, surveyors compare the equipment’s readings to a standard. This process identifies any deviation that might lead to...
238
Raman Spectroscopy: Overview01:20

Raman Spectroscopy: Overview

1.2K
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.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
1.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

[A seroepidemiologic analysis of hepatitis B in Sichuan province].

Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi·2009
Same author

[Efficacy and safety of drospirenone-ethinylestradiol on contraception in healthy Chinese women: a multicenter randomized controlled trial].

Zhonghua fu chan ke za zhi·2009
Same author

RGS5, a hypoxia-inducible apoptotic stimulator in endothelial cells.

The Journal of biological chemistry·2009
Same author

Theory and experiment of a fiber loop mirror filter of two-stage polarization-maintaining fibers and polarization controllers for multiwavelength fiber ring laser.

Optics express·2009
Same author

Selective binding and highly sensitive fluorescent sensor of palmatine and dehydrocorydaline alkaloids by cucurbit[7]uril.

Organic & biomolecular chemistry·2009
Same author

Abatement of toluene from gas streams via ferro-electric packed bed dielectric barrier discharge plasma.

Journal of hazardous materials·2009

Related Experiment Video

Updated: Jan 1, 2026

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
09:48

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Published on: November 7, 2016

12.3K

High-accuracy distributed temperature measurement using difference sensitive-temperature compensation for Raman-based

Jian Li, Qian Zhang, Yang Xu

    Optics Express
    |December 25, 2019
    PubMed
    Summary

    This study introduces a novel Raman Distributed Temperature Sensor (R-DTS) system that significantly improves temperature accuracy over long distances. The new method achieves better than 1 °C accuracy, crucial for precise temperature monitoring applications.

    More Related Videos

    A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
    09:03

    A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

    Published on: January 7, 2019

    7.6K
    Fabrication and Testing of Photonic Thermometers
    08:44

    Fabrication and Testing of Photonic Thermometers

    Published on: October 24, 2018

    6.2K

    Related Experiment Videos

    Last Updated: Jan 1, 2026

    Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
    09:48

    Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

    Published on: November 7, 2016

    12.3K
    A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
    09:03

    A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

    Published on: January 7, 2019

    7.6K
    Fabrication and Testing of Photonic Thermometers
    08:44

    Fabrication and Testing of Photonic Thermometers

    Published on: October 24, 2018

    6.2K

    Area of Science:

    • Optical Sensing
    • Metrology
    • Fiber Optics

    Background:

    • Raman Distributed Temperature Sensors (R-DTS) are vital for long-distance temperature monitoring.
    • Existing R-DTS systems often struggle to achieve the required sub-1 °C accuracy over extended ranges.
    • Enhanced temperature sensitivity of backscattered spontaneous Raman scattering is key for improved accuracy.

    Purpose of the Study:

    • To propose and experimentally demonstrate an R-DTS system with optimized temperature accuracy.
    • To achieve a temperature accuracy better than 1 °C for long-distance monitoring.
    • To enhance the temperature sensitivity of backscattered spontaneous Raman scattering.

    Main Methods:

    • Development of an R-DTS system utilizing difference sensitive-temperature compensation.
    • Theoretical analysis and recalibration of Raman scattering signal intensity.
    • Application of a novel temperature demodulation method with compensation to dual-demodulation, self-demodulation, and double-end configuration R-DTS systems.

    Main Results:

    • Standard R-DTS systems showed temperature accuracies of 12.54 °C, 8.53 °C, and 15.00 °C over 10.8 km.
    • After applying the difference sensitive-temperature compensation, accuracies improved to 0.38 °C, 0.36 °C, and 0.56 °C.
    • The proposed method successfully demonstrated temperature accuracy better than 1 °C across all tested R-DTS configurations.

    Conclusions:

    • The proposed difference sensitive-temperature compensation method significantly enhances R-DTS temperature accuracy.
    • This novel approach meets the critical requirement of sub-1 °C accuracy for long-distance temperature monitoring.
    • The method is effective across various R-DTS configurations, offering a versatile solution for precise temperature sensing.