High Speed Thermal Imaging
High Speed Thermal Imaging - Related Videos
11:59
High-speed Particle Image Velocimetry Near Surfaces
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Cited by 19 •
2013
A procedure for studying transient flows near boundaries using high-resolution, high-speed particle image velocimetry (PIV) is described here. PIV is a non-intrusive measurement technique applicable to any optically accessible flow by optimizing several parameter constraints such as the image and recording properties, the laser sheet properties, and analysis algorithms.
10:07
Thermal Imaging to Study Stress Non-invasively in Unrestrained Birds
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Cited by 55 •
2015
There is a need for a non-invasive assessment of stress. This paper describes a simple protocol using thermal imaging to detect a significant response in eye-region temperature in wild blue tits to a mild acute stressor.
06:08
Quantitative Visualization and Detection of Skin Cancer Using Dynamic Thermal Imaging
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Cited by 69 •
2011
We demonstrated that malignant pigmented lesions with increased metabolic activity generate quantifiable amounts of heat and the measurement of the transient thermal response of the skin to a cooling excitation allows quantitative identification of melanoma and other skin cancers (vs. non-proliferative nevi) at an early stage of the disease.
11:34
High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
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Cited by 9 •
2013
This video describes the fundamentals of digital fringe projection techniques, which provide dense 3D measurements of dynamically changing surfaces. It also demonstrates the design and operation of a high-speed binary defocusing system based on these techniques.
08:51
The Use of Thermal Infra-Red Imaging to Detect Delayed Onset Muscle Soreness
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Cited by 110 •
2012
The purpose of this investigation was to assess whether using an infra-red thermal camera is a valid tool for detecting and quantifying the muscle soreness after exercising.
FAQs
Accurate temperature maps depend on more than the radiation detected by the camera. Emissivity determines how a surface emits infrared energy, while reflected radiation can add energy that did not originate from the surface itself. Calibration also accounts for environmental conditions, allowing measured patterns to represent temperature changes more reliably during engineering tests.
The high frame rate preserves the sequence of temperature changes during events that develop and fade quickly. Instead of showing only a final thermal state, the recorded data reveal when heating or cooling begins and how it progresses across a surface. This timing information helps engineers examine short-lived thermal behavior in operating systems.
Because the camera observes emitted radiation without contacting the component, it can monitor surface temperature during events without placing a measurement device on the observed area. This is particularly relevant when thermal behavior changes rapidly or when access to the component is limited. The resulting maps show both the timing and location of temperature changes.
Preparation centers on configuring the infrared camera for rapid image capture and calibrating the measurement before interpreting temperature maps. Calibration must consider emissivity, reflected radiation, and environmental conditions. Engineers then examine the recorded sequence to identify where temperatures change and when those changes occur, linking the thermal response to the tested system or process.
The technique supports several engineering tasks, including heat-transfer analysis, thermal-defect identification, electronic-component monitoring, and evaluation of manufacturing processes during short-lived events. These uses extend beyond observing temperature alone: the recorded spatial and temporal patterns can help reveal how a system behaves under operating or processing conditions.
Thermal image sequences show where and when abnormal temperature changes occur, giving engineers evidence for examining thermal defects or unexpected behavior. In failure analysis, these patterns can help locate relevant regions during a transient event. For design validation, the measurements provide a way to assess whether an engineered system exhibits the expected thermal response.