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Related Concept Videos

Temperature Measurement Sites01:14

Temperature Measurement Sites

4.2K
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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Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

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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,...
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Assessing Body Temperature - Axilla01:14

Assessing Body Temperature - Axilla

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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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Applications of EMF Measurements01:26

Applications of EMF Measurements

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Electromotive force (EMF) measurements have a broad range of applications in various fields, including chemistry and physics. The electrochemical series, an arrangement of elements in order of their standard electrode potentials, can be determined through EMF measurements. Elements with lower standard potentials can reduce ions of elements with higher standard potentials.The standard cell potential, E°, allows for the calculation of the standard reaction Gibbs energy, ΔG°, and...
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Assessing Body Temperature - Temporal Artery01:19

Assessing Body Temperature - Temporal Artery

1.6K
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...
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Thermosensation01:43

Thermosensation

35.6K
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...
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Related Experiment Video

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Surface Renewal: An Advanced Micrometeorological Method for Measuring and Processing Field-Scale Energy Flux Density Data
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A wind energy powered wireless temperature sensor node.

Chuang Zhang1, Xue-Feng He2,3, Si-Yu Li4

  • 1Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, Chongqing University, Chongqing 400044, China. 20120802066@cqu.edu.cn.

Sensors (Basel, Switzerland)
|March 4, 2015
PubMed
Summary
This summary is machine-generated.

A novel wireless temperature sensor node utilizes a piezoelectric wind energy harvester for self-powering. This system efficiently converts wind energy into electricity, enabling continuous temperature monitoring and wireless transmission.

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Area of Science:

  • Energy Harvesting
  • Wireless Sensor Networks
  • Environmental Monitoring

Background:

  • Traditional wireless sensor nodes require external power sources or frequent battery replacements.
  • Developing self-powered systems is crucial for long-term, autonomous environmental monitoring applications.
  • Piezoelectric energy harvesting offers a promising solution for powering low-consumption electronic devices.

Purpose of the Study:

  • To develop and evaluate a self-powered wireless temperature sensor node.
  • To investigate the performance of a piezoelectric wind energy harvester for powering the sensor node.
  • To demonstrate the feasibility of autonomous temperature sensing and data transmission using ambient wind energy.

Main Methods:

  • A wireless sensor node was designed, integrating a piezoelectric wind energy harvester, TMP102 temperature sensor, MSP430 microcontroller, LTC3588-1/LT3009 power management circuit, and nRF24l01 transceiver.
  • The wind energy harvester, featuring a cuboid chamber (62 mm × 19.6 mm × 10 mm), was used to convert wind vibrations into electrical energy.
  • System performance was tested under various wind speeds to determine critical wind speed and output power.

Main Results:

  • The piezoelectric wind energy harvester demonstrated a critical wind speed of approximately 5.4 m/s.
  • At a wind speed of 11.2 m/s, the harvester generated an output power of 1.59 mW for a 20 kΩ load.
  • This power output was sufficient to enable the wireless sensor node to measure and transmit temperature data every 13 seconds.
  • The self-powered node operated reliably within a wind speed range of 6 m/s to 11.5 m/s.

Conclusions:

  • The developed piezoelectric wind energy harvesting system can effectively power a wireless temperature sensor node.
  • Autonomous, long-term environmental monitoring is achievable with self-powered wireless sensor technology.
  • This approach offers a sustainable alternative to battery-dependent wireless sensor networks.