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Temperature Measurement Sites

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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Related Experiment Video

Updated: Jul 30, 2025

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Published on: November 7, 2016

A Liquid Metal Temperature Detection System Based on Multi-Node Sapphire Fiber Sensor.

Gao Wang¹, Chengyuan Qian², Peng Sun^1,3

¹State Key Laboratory of Dynamic Measurement Technology, North University of China, Taiyuan 030051, China.

Sensors (Basel, Switzerland)

|May 13, 2023

Summary

This summary is machine-generated.

A novel multi-node sapphire fiber sensor system accurately measures molten aluminum temperature, overcoming harsh conditions. This system achieves high accuracy and stability for industrial temperature sensing applications.

Keywords:

aluminum liquid sapphire fiber ultrasonic temperature measurement

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Area of Science:

Materials Science
Sensor Technology
Metrology

Background:

Molten aluminum temperature detection is critical for industrial processes.
High temperatures and corrosive environments challenge traditional sensing methods.
Existing sensors often lack the required accuracy and stability in harsh conditions.

Purpose of the Study:

To develop an accurate and stable temperature detection system for molten aluminum.
To overcome the limitations of existing sensors in high-temperature and corrosive environments.
To utilize a multi-node sapphire fiber sensor for real-time temperature monitoring.

Main Methods:

Designed a multi-node sapphire fiber sensor with specific structural parameters (0.7 mm fiber diameter, 0.5 mm groove).
Performed simulations to analyze ultrasonic response distribution within the sensor.
Conducted static calibration and real-time molten aluminum temperature measurements.
Compared temperature data from two distinct groove locations.

Main Results:

The system effectively distinguished test signals across various positions and temperatures.
Achieved a temperature test accuracy greater than 1 degree Celsius.
Demonstrated good temperature test stability during molten aluminum observation.

Conclusions:

The developed multi-node sapphire fiber sensor system provides accurate and stable molten aluminum temperature detection.
The system successfully addresses challenges posed by high temperatures and corrosive environments.
This technology lays a foundation for advanced industrial temperature measurement devices.