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Related Concept Videos

Temperature Measurement Sites01:14

Temperature Measurement Sites

2.3K
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...
2.3K
Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

1.2K
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,...
1.2K
Assessing Body Temperature - Temporal Artery01:19

Assessing Body Temperature - Temporal Artery

706
Here is a stepwise guide to assessing the body temperature at the temporal artery using a temporal artery thermometer
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.  
Step 3: Assess the patient's...
706

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Related Experiment Video

Updated: Oct 2, 2025

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
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Cost-efficient and reliable annular optical fiber temperature sensor.

Sinian Zhao, Xue Zhou, Xiaoyu Chen

    Applied Optics
    |February 24, 2022
    PubMed
    Summary

    A novel annular optical fiber temperature sensor (AOFTS) utilizes multi-mode interference for accurate temperature detection. This cost-efficient sensor demonstrates high sensitivity, especially at low temperatures, making it ideal for specialized applications.

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    Area of Science:

    • Optoelectronics
    • Fiber optics
    • Sensor technology

    Background:

    • Traditional temperature sensors face limitations in specific environments.
    • Optical fiber sensors offer advantages in remote and harsh condition monitoring.
    • Developing cost-effective and sensitive fiber optic sensors is crucial for advanced applications.

    Purpose of the Study:

    • To propose and demonstrate a novel annular optical fiber temperature sensor (AOFTS).
    • To investigate the temperature sensing performance of the proposed AOFTS.
    • To evaluate the sensor's suitability for low-temperature detection applications.

    Main Methods:

    • Fabrication of an annular winding structure using single-mode optical fiber.
    • Utilizing the multi-mode interference (MMI) effect for temperature sensing.
    • Experimental characterization of the sensor's sensitivity across a defined temperature range.

    Main Results:

    • The AOFTS exhibits an average temperature sensitivity of 255.5 pm/°C between -20°C and 110°C.
    • The sensor demonstrates significantly higher sensitivity at lower temperatures, reaching 450 pm/°C at -20°C.
    • The device shows excellent stability, reproducibility, and repeatability.

    Conclusions:

    • The proposed AOFTS is a cost-efficient and reliable solution for temperature sensing.
    • Its high sensitivity at low temperatures makes it particularly promising for low-temperature detection.
    • The sensor's simple fabrication and robust performance indicate broad application potential.