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Related Concept Videos

Assessing Body Temperature - Tympanic membrane01:14

Assessing Body Temperature - Tympanic membrane

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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...
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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.
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Body temperature can be assessed using various devices and measured in Celsius or Fahrenheit.
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Modelling and Validation of a Guided Acoustic Wave Temperature Monitoring System.

Lawrence Yule1, Bahareh Zaghari2, Nicholas Harris1

  • 1Electronics and Computer Science, University of Southampton, Southampton SO17 1BJ, UK.

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Summary

Computer modeling of condition monitoring sensors aids development and performance analysis. A validated COMSOL model for guided wave temperature monitoring shows good agreement with experimental and theoretical results.

Keywords:
COMSOLcondition monitoringguided wavesnozzle guide vanewedge transducer

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Area of Science:

  • Engineering
  • Materials Science
  • Sensor Technology

Background:

  • Condition monitoring sensors are crucial for assessing component health and performance.
  • Computer modeling offers a powerful tool for sensor development, performance enhancement, and operational impact analysis.
  • Guided wave-based sensing presents a promising approach for monitoring critical components in harsh environments.

Purpose of the Study:

  • To develop and validate a COMSOL model for a guided wave-based temperature monitoring system.
  • To assess the feasibility of using this technology for monitoring nozzle guide vanes in aeroengines.
  • To provide a methodology for constructing and validating similar COMSOL models for sensor development.

Main Methods:

  • Development of a COMSOL model simulating a guided wave-based temperature monitoring system.
  • Experimental validation using an aluminum plate with piezoelectric wedge transducers to excite the S0 Lamb wave mode.
  • Temperature control via a hot plate and time-of-flight measurements in MATLAB to calculate group velocity.

Main Results:

  • The COMSOL model demonstrated good agreement with experimental measurements.
  • Calculated group velocities from the model aligned well with theoretical predictions from dispersion curves.
  • The validated model serves as a reliable tool for further development of guided wave sensor systems.

Conclusions:

  • The developed COMSOL model is a validated and effective tool for guided wave-based temperature monitoring.
  • This approach shows potential for future application in monitoring critical aeroengine components like nozzle guide vanes.
  • The methodology presented can guide the development of similar advanced sensor modeling techniques.