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Related Concept Videos

Temperature Measurement Sites01:14

Temperature Measurement Sites

3.8K
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...
3.8K
Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

2.0K
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,...
2.0K

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Related Experiment Video

Updated: Mar 15, 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

12.5K

Sapphire-fiber-based distributed high-temperature sensing system.

Bo Liu, Zhihao Yu, Cary Hill

    Optics Letters
    |September 16, 2016
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a novel sapphire-fiber sensor for distributed high-temperature measurements up to 1200°C using Raman scattering. The system achieves a spatial resolution of 14 cm with an average standard deviation of 3.7°C.

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    Area of Science:

    • Materials Science
    • Optical Sensing
    • Fiber Optics

    Background:

    • Accurate high-temperature sensing is critical in various industrial and research applications.
    • Existing distributed sensing methods face limitations in extreme temperature environments.
    • Sapphire fiber offers unique properties for high-temperature optical applications.

    Purpose of the Study:

    • To develop and demonstrate a novel distributed high-temperature sensing system.
    • To utilize a sapphire fiber and Raman distributed sensing technique for temperature measurement.
    • To evaluate the system's performance up to 1200°C.

    Main Methods:

    • A sapphire-fiber-based system was designed.
    • High peak power 532 nm laser pulses were used to excite Raman signals in the fiber.
    • Raman Stokes and anti-Stokes signals were analyzed in the time domain for temperature profiling.

    Main Results:

    • The system successfully measured temperature distributions from room temperature to 1200°C.
    • An average standard deviation of approximately 3.7°C was achieved.
    • A spatial resolution of about 14 cm was demonstrated.

    Conclusions:

    • The developed sapphire-fiber sensor provides a viable solution for distributed high-temperature sensing.
    • Raman distributed sensing in sapphire fiber is effective for extreme temperature environments.
    • This technology has potential applications in industries requiring high-temperature monitoring.