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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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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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Calorimetry is a technique used to measure the amount of heat involved in a chemical or physical process or to measure the heat transferred to or from a substance. The heat is exchanged with a calibrated and insulated device called the calorimeter. Calorimetry experiments are based on the assumption that there is no heat exchange between the insulated calorimeter and the external environment. The well-insulated calorimeters prevent the transfer of heat between the calorimeter and its external...
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Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
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Spatially Pressure-Mapped Thermochromic Interactive Sensor.

Gwangmook Kim1, Sungjun Cho1, Kiseok Chang2

  • 1Department of Materials Science and Engineering, Yonsei University, Seoul, 120-749, South Korea.

Advanced Materials (Deerfield Beach, Fla.)
|January 25, 2017
PubMed
Summary
This summary is machine-generated.

A novel thermochromic sensor array visualizes pressure distribution and changes color locally. This interactive sensor offers dynamic pressure mapping and quantification without complex optoelectronic components.

Keywords:
conducting compositesinteractive sensorspressure sensorsthermochromic

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Area of Science:

  • Materials Science
  • Sensor Technology
  • Interactive Systems

Background:

  • Traditional pressure sensors often rely on complex optoelectronic arrays.
  • Visualizing localized pressure information dynamically presents significant challenges.
  • Developing cost-effective and intuitive sensing solutions is an ongoing need.

Purpose of the Study:

  • To develop a thermochromic-based interactive sensor for local color switching and pressure mapping.
  • To demonstrate the sensor's capability for dynamic visualization of pressure information.
  • To enable serial/parallel pressure mapping and quantification without optoelectronic components.

Main Methods:

  • Fabrication of a 2D array of resistive pressure sensor switches.
  • Integration of thermochromic materials for visual feedback.
  • Development of a system for dynamic pressure mapping and data acquisition.

Main Results:

  • Successful generation of localized color switching in response to applied pressure.
  • Demonstration of accurate pressure mapping with arbitrary shapes.
  • Validation of dynamic response for both serial and parallel pressure mapping.
  • Quantification of pressure based on colorimetric and resistive changes.

Conclusions:

  • The developed thermochromic sensor array provides an effective method for interactive pressure visualization.
  • This technology offers a simplified, cost-effective alternative to optoelectronic pressure mapping systems.
  • The sensor enables intuitive understanding and quantification of localized pressure dynamics.