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Related Concept Videos

Thermal Strain01:19

Thermal Strain

Thermal strain is a concept that arises when we consider how temperature changes affect structures. Unlike the conventional assumption that structures remain constant under load, real-world scenarios often involve temperature fluctuations that can significantly impact these structures. Consider a homogeneous rod with a uniform cross-section resting freely on a flat horizontal surface. If the rod's temperature increases, the rod elongates. This elongation is proportional to the temperature...
Measurements of Strain01:27

Measurements of Strain

Strain quantifies the deformation of a material under force, typically measured as normal strain, which represents the change in length when compared with the original length. Electrical strain gauges are used for enhanced accuracy. These devices consist of a conductive wire mounted on a paper backing that adheres to the material's surface. These gauges operate on the piezoresistive effect, where the wire's electrical resistance changes in response to mechanical deformation. The strain gauge...
Three-Dimensional Analysis of Strain01:29

Three-Dimensional Analysis of Strain

Three-dimensional strain analysis is crucial for understanding how materials deform under stress, particularly in elastic, homogeneous materials. This method employs principal stress axes to simplify complex stress states into more understandable forms. Subjected to stress, a small cubic element within a material either expands or contracts along these axes, transforming into a rectangular parallelepiped. This transformation effectively illustrates the material's deformation. The principal...
Thermal Stress01:09

Thermal Stress

If the temperature of an object is changed while it is prevented from expanding or contracting, the object is subjected to stress. The stress is compressive if the object expands in the absence of constraint and tensile if it contracts. This stress resulting from temperature change is known as thermal stress. It can be quite large and can cause damage. To avoid this stress, engineers may design components so they can expand and contract freely. For instance, on highways, gaps are deliberately...

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Related Experiment Video

Updated: May 19, 2026

Subsurface Defect Localization by Structured Heating Using Laser Projected Photothermal Thermography
11:34

Subsurface Defect Localization by Structured Heating Using Laser Projected Photothermal Thermography

Published on: May 15, 2017

Thermal strain imaging: a review.

Chi Hyung Seo1, Yan Shi, Sheng-Wen Huang

  • 1Siemens Healthcare, Issaquah, WA , USA.

Interface Focus
|August 7, 2012
PubMed
Summary
This summary is machine-generated.

Thermal strain imaging (TSI) uses ultrasound to detect temperature changes for medical applications. This technology shows promise for non-invasive thermometry and tissue characterization, despite some limitations.

Keywords:
non-invasive thermometrythermal strain imagingtissue differentiationultrasound

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Last Updated: May 19, 2026

Subsurface Defect Localization by Structured Heating Using Laser Projected Photothermal Thermography
11:34

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Published on: May 15, 2017

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Area of Science:

  • Ultrasound Physics
  • Biomedical Engineering
  • Medical Imaging

Background:

  • Thermal strain imaging (TSI) is an advanced ultrasound technique.
  • It leverages the temperature dependence of sound speed.
  • TSI generates thermal (temporal) strain images for analysis.

Purpose of the Study:

  • To provide a comprehensive overview of Thermal Strain Imaging (TSI).
  • To explore its biomedical applications documented in recent literature.
  • To introduce the fundamental theory behind thermal strain.

Main Methods:

  • Discussion of basic theory in thermal strain.
  • Review of two primary energy sources suitable for clinical use.
  • Presentation of biomedical applications and their associated limitations.

Main Results:

  • Identified promising biomedical applications of TSI.
  • Highlighted non-invasive thermometry as a key application.
  • Discussed tissue characterization using TSI.

Conclusions:

  • TSI is a developing field with significant potential in biomedicine.
  • Key applications include non-invasive temperature monitoring and tissue analysis.
  • The paper concludes by comparing TSI with competing technologies.