Related Experiment Video
Updated: May 8, 2026

Near-Infrared Temperature Measurement Technique for Water Surrounding an Induction-heated Small Magnetic Sphere
Published on: April 30, 2018
Spatial observation and quantification of microwave heating in materials.
C A Crane1, M L Pantoya, B L Weeks
1Department of Mechanical Engineering, Texas Tech University, Lubbock, Texas 79409, USA.
A new electromagnetic exposure chamber precisely measures microwave heating, energy transmission, and reflection in materials. This innovative diagnostic tool allows for detailed analysis of microwave energy absorption and material interactions.
Area of Science:
- Materials Science
- Electromagnetics
- Applied Physics
Background:
- Microwave heating is crucial for various industrial and scientific applications.
- Accurate measurement of energy absorption, transmission, and reflection is essential for understanding material-microwave interactions.
- Existing methods often lack the precision and real-time feedback required for detailed analysis.
Purpose of the Study:
- To design and validate a novel electromagnetic exposure chamber for precise microwave power delivery.
- To develop integrated diagnostics for measuring sample heating, transmitted, and reflected energy.
- To enable new experimental capabilities for studying microwave energy absorption in diverse materials.
Main Methods:
- Designed an electromagnetic exposure chamber for microwave frequencies (0.8–4.2 GHz).
- Integrated an infrared (IR) camera for real-time temperature monitoring (1.3 ms response time).
- Utilized sensors to quantify transmitted and reflected microwave energy.
Main Results:
- Successfully delivered controlled microwave power to cylindrical samples.
- Quantified energy absorption via IR imaging of temperature distribution.
- Measured transmitted and reflected energy, validating the experimental design.
- Examined borosilicate (coated and uncoated) and compressed flake graphite samples.
Conclusions:
- The developed instrumentation accurately measures microwave heating and energy dynamics.
- The system enables novel in situ investigations of microwave-material interactions.
- This diagnostic is valuable for future studies on various materials' microwave energy coupling efficiency.
More Related Videos
11:34Subsurface Defect Localization by Structured Heating Using Laser Projected Photothermal Thermography
Published on: May 15, 2017
10:35Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials
Published on: September 26, 2014
Related Concept Videos
Standing Waves in a Cavity
Quantifying Heat
Absorption of Radiation
Mechanisms of Heat Transfer I