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Related Concept Videos

Temperature Measurement Sites01:14

Temperature Measurement Sites

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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Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
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Optical Fiber Sensors for High-Temperature Monitoring: A Review.

Shaonian Ma1,2, Yanping Xu1,2, Yuxi Pang1,2

  • 1Center for Optics Research and Engineering, Shandong University, Qingdao 266237, China.

Sensors (Basel, Switzerland)
|August 12, 2022
PubMed
Summary

Fiber-optic sensors offer superior high-temperature measurement for demanding industries. This review covers their principles, designs, and advancements, particularly the shift to crystal fibers for enhanced performance.

Keywords:
blackbody radiationcrystal fibersfiber Bragg gratings (FBGs)fiber-optic sensorshigh-temperature measurement

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Area of Science:

  • Materials Science
  • Optical Engineering
  • Sensor Technology

Background:

  • High-temperature measurements (>1000 °C) are crucial for aerospace, metallurgy, and energy sectors.
  • Traditional electronic sensors face limitations in harsh environments.
  • Fiber-optic sensors offer advantages like miniaturization, EMI immunity, and remote sensing.

Purpose of the Study:

  • To review the principles, design, and performance of fiber-optic high-temperature sensors.
  • To highlight recent advancements, especially the transition to crystal fibers.
  • To discuss future prospects and challenges in this field.

Main Methods:

  • Review of existing literature on fiber-optic high-temperature sensing.
  • Analysis of sensing principles and structural designs.
  • Evaluation of temperature measurement performance data.

Main Results:

  • Fiber-optic sensors are increasingly adopted for high-temperature applications.
  • Crystal fibers show promise for improved sensor performance compared to glass fibers.
  • Key performance metrics and design considerations are analyzed.

Conclusions:

  • Fiber-optic technology is a viable and advancing solution for high-temperature sensing.
  • The development of crystal fiber sensors represents a significant step forward.
  • Further research is needed to overcome challenges and expand applications.