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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...
Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview01:13

Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview

Attenuated total reflectance (ATR) infrared spectroscopy is a powerful analytical technique used to study the composition of materials. It is widely employed in chemistry, materials science, forensic science, and other fields where sample characterization is required. ATR has several advantages over traditional transmission IR spectroscopy, including the requirement of little to no sample preparation and the ability to analyze a wide range of samples.
The ATR process begins by directing a beam...
Assessing Body Temperature - Temporal Artery01:19

Assessing Body Temperature - Temporal Artery

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 forehead...
Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

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,...
Assessing Body Temperature - Rectal01:27

Assessing Body Temperature - Rectal

Rectal temperature measurement is considered the most precise method for assessing core body temperature and typically registers higher than oral temperature. For adults, the rectal thermometer should be inserted 1 to 1.5 inches into the rectum to obtain the most accurate reading.
Follow these steps for rectal temperature assessment:
Step 1: Perform hand hygiene and don clean gloves to prevent cross-infection.
Step 2: Position the patient in a side-lying position to better visualize the rectal...
Assessing Body Temperature - Axilla01:14

Assessing Body Temperature - Axilla

Procedural Guide for Assessing Axillary Body Temperature using a Digital Thermometer:
Step 1: Perform hand hygiene and put on clean gloves to maintain infection control and prevent cross-contamination.
Step 2: Prepare the patient by explaining the procedure to ensure understanding and cooperation. Ensure privacy, expose the axilla, and inform the patient that minimal movement is crucial for an accurate reading.
Step 3: Adjust the patient’s clothing to expose only the axilla. It minimizes...

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Related Experiment Video

Updated: Jun 12, 2026

The Use of High-resolution Infrared Thermography (HRIT) for the Study of Ice Nucleation and Ice Propagation in Plants
09:36

The Use of High-resolution Infrared Thermography (HRIT) for the Study of Ice Nucleation and Ice Propagation in Plants

Published on: May 8, 2015

Evaluation of a temperature remote sensing technique.

S A Gearhart, M E Thomas

    Applied Optics
    |June 12, 2010
    PubMed
    Summary
    This summary is machine-generated.

    This study evaluates a noninvasive laser spectroscopy technique for gas temperature measurement. The method accurately determines temperatures from 400 K to 2000 K without needing pressure or concentration data.

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    Near-Infrared Temperature Measurement Technique for Water Surrounding an Induction-heated Small Magnetic Sphere

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    The Use of High-resolution Infrared Thermography (HRIT) for the Study of Ice Nucleation and Ice Propagation in Plants
    09:36

    The Use of High-resolution Infrared Thermography (HRIT) for the Study of Ice Nucleation and Ice Propagation in Plants

    Published on: May 8, 2015

    Near-Infrared Temperature Measurement Technique for Water Surrounding an Induction-heated Small Magnetic Sphere
    08:52

    Near-Infrared Temperature Measurement Technique for Water Surrounding an Induction-heated Small Magnetic Sphere

    Published on: April 30, 2018

    Area of Science:

    • Thermometry
    • Laser Spectroscopy
    • Gas Phase Chemical Analysis

    Background:

    • Conventional mechanical probing methods for gas temperature measurement can be invasive and limited in extreme conditions.
    • Accurate temperature determination is crucial for understanding and controlling combustion processes, industrial applications, and atmospheric studies.
    • Previous research established a laser-based technique for high-temperature gas thermometry (~2000 K) at atmospheric pressure.

    Purpose of the Study:

    • To evaluate the applicability of a diode laser spectrometer technique for noninvasive gas temperature measurements.
    • To assess the technique's performance at lower temperatures and reduced pressures compared to previous findings.
    • To demonstrate an alternative to traditional invasive temperature measurement methods.

    Main Methods:

    • Utilized a diode laser spectrometer to measure the line-center absorption coefficient ratio of two specific absorption lines.
    • The absorption lines originated from different vibrational energy levels of the same absorbing species within the gas.
    • Temperature was calculated based on the ratio, independent of total pressure, absorber concentration, or optical path length.

    Main Results:

    • Successfully demonstrated the noninvasive technique's capability for gas temperature measurements.
    • Extended the applicable temperature range down to approximately 400 K.
    • Confirmed applicability at pressures significantly below 1 atm, broadening its operational scope.

    Conclusions:

    • The diode laser spectroscopy technique offers a viable, noninvasive alternative for gas thermometry.
    • The method is effective across a wide temperature range (400 K - 2000 K) and varying pressures.
    • This technique provides accurate temperature data without requiring knowledge of other gas properties.