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Related Concept Videos

Temperature Measurement Sites01:14

Temperature Measurement Sites

3.6K
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...
3.6K
Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

1.9K
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,...
1.9K
Thermosensation01:43

Thermosensation

34.0K
Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...
34.0K
Thermometers and Temperature Scales01:22

Thermometers and Temperature Scales

7.9K
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...
7.9K
Assessing Body Temperature - Tympanic membrane01:14

Assessing Body Temperature - Tympanic membrane

1.2K
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...
1.2K
Assessing Body Temperature - Oral01:14

Assessing Body Temperature - Oral

1.7K
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...
1.7K

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Fabrication and Testing of Photonic Thermometers
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A suitable (wide-range + linear) temperature sensor based on Tm3+ ions.

A R Zanatta1, D Scoca2, F Alvarez2

  • 1Instituto de Física de São Carlos, USP, São Carlos, 13560-970, SP, Brazil. zanatta@ifsc.usp.br.

Scientific Reports
|October 28, 2017
PubMed
Summary
This summary is machine-generated.

This study introduces a novel temperature sensor using thulium ions (Tm3+) in titanium dioxide (TiO2). This Tm3+-doped TiO2 offers precise temperature sensing with minimal disturbance, advancing photonics and nanoelectronics.

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Area of Science:

  • Materials Science
  • Optical Physics
  • Nanotechnology

Background:

  • Precise temperature sensing is crucial for photonics, nanoelectronics, and theranostics.
  • Trivalent rare-earth (RE3+) ions offer sharp optical transitions sensitive to local environments, ideal for temperature sensors (T-sensors).

Purpose of the Study:

  • To propose and characterize a new T-sensor based on trivalent thulium (Tm3+) ions in crystalline TiO2.
  • To evaluate the optical properties of Tm3+-doped TiO2 for temperature sensing applications.

Main Methods:

  • Optical characterization of Tm3+-doped TiO2.
  • Analysis of Tm3+-related emission spectra around 676 nm.
  • Comparison with established ruby (Al2O3:Cr3+) sensors.

Main Results:

  • Tm3+-doped TiO2 exhibits a temperature-induced wavelength shift of -2.2 pm/K.
  • The sensor shows a small line-width increase across the 85-750 K range.
  • Minimal data processing is required for Tm3+-based temperature sensing.

Conclusions:

  • Tm3+-doped TiO2 presents a promising new material for sensitive and minimally invasive temperature sensing.
  • The developed sensor is suitable for applications in photonics, nanoelectronics, and theranostics.
  • Further investigation into Tm3+ transition mechanisms in TiO2 is warranted.