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Related Concept Videos

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,...
Thermometers and Temperature Scales01:22

Thermometers and Temperature Scales

Any physical property that depends consistently and reproducibly on temperature can be used as the basis of a thermometer. For example, volume increases with temperature for most substances. This property is the basis for the common alcohol thermometer and the original mercury thermometers. Other properties used to measure temperature include electrical resistance, color, and the emission of infrared radiation.
As many physical properties depend on temperature, the variety of thermometers is...
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...
Assessing Body Temperature - Tympanic membrane01:14

Assessing Body Temperature - Tympanic membrane

Assessing tympanic membrane temperature involves using a tympanic membrane thermometer (TMT). Here is a step-by-step guide:
Step 1: Begin by practicing good hand hygiene to prevent the transmission of microorganisms.
Step 2: Turn on the thermometer and wait until the ready sign appears on the screen to ensure accurate measurement.
Step 3: Slide the probe cover in place to prevent cross-contamination.
Step 4: Instruct the patient to tilt their head to the side for comfort and check for cerumen...
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 - Oral01:14

Assessing Body Temperature - Oral

Here are the steps to accurately measure oral temperature using an electronic thermometer:
Step 1:
Start by practicing proper hand hygiene to prevent the spread of microorganisms.
Step 2:
Take the thermometer out of the charging unit, switch it on, and wait for the ready sign.
Step 3:
Gently slide the probe cover until a click is heard. This simple action prevents cross-contamination and ensures the correct placement of the probe cover.
Step 4:
Instruct the patient to open their mouth and place...

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A Simple and Inexpensive Method for Determining Cold Sensitivity and Adaptation in Mice
08:35

A Simple and Inexpensive Method for Determining Cold Sensitivity and Adaptation in Mice

Published on: March 17, 2015

A microfiber coupler tip thermometer.

Ming Ding1, Pengfei Wang, Gilberto Brambilla

  • 1Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ, UK. md20g09@orc.soton.ac.uk

Optics Express
|March 16, 2012
PubMed
Summary
This summary is machine-generated.

This study presents a compact microfiber coupler tip thermometer capable of measuring extreme temperatures up to 1283 °C. This novel optical fiber sensor achieves high sensitivity and spatial resolution for advanced thermal monitoring.

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Area of Science:

  • Optoelectronics
  • Materials Science
  • Sensor Technology

Background:

  • Accurate high-temperature measurement is crucial for industrial processes and scientific research.
  • Existing fiber optic sensors face limitations in temperature range and spatial resolution.
  • Silica optical fibers offer potential for high-temperature sensing due to material properties.

Purpose of the Study:

  • To demonstrate a compact thermometer utilizing a microfiber coupler tip.
  • To achieve high-temperature measurements over a broad thermal interval.
  • To evaluate the sensor's sensitivity and spatial resolution.

Main Methods:

  • Fabrication of a broadband microfiber coupler tip.
  • Integration of the coupler tip into a compact sensing probe.
  • Characterization of the sensor's performance across a wide temperature range (room temperature to 1283 °C).
  • Measurement of spectral shifts to determine temperature with high spatial resolution (<200 µm).

Main Results:

  • Successful demonstration of a compact microfiber coupler tip thermometer.
  • Measurement of temperatures from room temperature up to 1283 °C.
  • Achieved an average sensitivity of 11.96 pm/°C for a ~2.5 µm diameter coupler tip.
  • Established a new record for the highest temperature measured by a silica optical fiber device.

Conclusions:

  • The microfiber coupler tip thermometer is a viable technology for extreme high-temperature sensing.
  • The sensor offers excellent sensitivity and spatial resolution for precise thermal analysis.
  • This advancement opens new possibilities for optical fiber-based thermometry in demanding environments.