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Infrared Camera in Electronics and Electrical Engineering

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The use of infrared thermography in electronics and electrical industry allows contactless measurement of surface temperatures with an infrared camera without contacting temperature sensors. It is an elegant, non-invasive optical temperature measurement method for simultaneous and temporally high-resolution detection of a number of measurement points.


Infrared Camera Enables Contactless Measurement in Electronics

The thermographic inspection of electronic components and assemblies is an established test procedure for failure detection and quality management – from the development of first prototypes to serial production. This enables, for example, the following to be detected:

  • Hotspots and atypical temperature distributions on the surface of printed circuit boards, integrated circuits and multichip modules
  • Increased contact resistances
  • Increased resistance due to constriction of wires
  • Hidden cracks in joints
  • Power losses due to RF mismatch
  • Incorrect thermal connections of heat sinks
  • Short circuits, soldering defects such as cold solder joints

Thermographic analysis during each development step provides important conclusions for the optimisation of heat management and the design of complex electronic assemblies. In electronics production thermographic temperature measurement is used as a versatile instrument for quality assurance. High-performance thermography has become indispensable for setting critical technological parameters and their permanent monitoring as well as for inline testing of products in the production process and their final functional test.

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IR Based Fever Detection

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Major travel hubs like airports, seaports, railway stations and long-distance bus stations are one of the points on which the security measures of public authorities are aimed when infectious diseases such as Coronavirus (2019-nCoV), Severe Acute Respiratory Syndrome (SARS), Ebola Virus Disease (EVD) or Middle East Respiratory Syndrome Coro-navirus (MERS-CoV) cause global problems. From there, diseases can be effectively prevented from spreading further. InfraTec infrared cameras can be used for a corresponding thermal fever screening for passengers. Our thermographic systems enable a non-contact and areal coverage of the body temperature, which preferably is detected at the inner angle of the eye. Slightest differences and thus abnormal body tempera- tures can be displayed and will result in alarms. Performing such health screenings, e.g. via implementing temperature checkpoints, enable the acquisition of important informa- tion as a basis for decision-making for subsequent medical examinations of the selected people and thus serve to secure public areas.

Advantages of using infrared cameras for thermal fever scanning of passengers

  • Contactless and planar temperature measurement without external reference radiator
  • Large field of view for rapid checking of large groups of people
  • Resolution also of smaller areas of the skin (angle of the eye) from a safe distance
  • Display and evaluation in real time
  • Reliable temperature measurements based on low noise infrared detectors and precision calibration
  • Alarming at surpassing temperature thresholds (fever)
  • Easily installable all-in-one unit for continuous monitoring of persons and groups of people
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Simultaneous Mapping of Wide Temperature Ranges

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If you want to measure temperatures in a very wide range with an infrared camera, you normally do this in stages. The neutral density filters are changed gradually from time to time. Adjusted to a specific temperature range, they prevent high-intensity infrared radiation from striking the camera detector and falsifying the measurement result by depolarising the detector pixels. The new High Dynamic Range (HDR) function of the Infrared ImageIR® camera series from InfraTec eliminates the need for such interruptions. It enables measurement scenarios with extremely different temperatures to be recorded continuously.

Capture temperature ranges of over 1,500 K in one image thanks to six positions
The starting point of the HDR function is a fast rotating filter wheel. Designed for such tasks, it rotates at more than 5,000 revolutions per minute. The wheel provides up to six positions ensuring maximum flexibility for demanding measurement tasks. When recording in HDR mode, multiple thermograms with different integration times and different filters are recorded quickly in succession and compiled into an overall image with a high dynamic range.

To activate the HDR function, it is sufficient to select a previously defined calibration range. After that, the rotation of the rotating filter wheel and the composition of the thermogram starts automatically. The measuring range can span up to 1,500 K. In the case of the ImageIR® 8300 hp, this setting can be used to capture full-frame images with (640 × 512) IR pixels. Based on the frame rate synchronization of the camera with the rotational speed of the wheel, it is possible to achieve a temporal resolution of 350 Hz.

Each position of the individual neutral density filters has its own integration time and corresponding temperature calibration. The filters weaken the signal of the measurement objects within the desired temperature range, which reliably prevents interference effects. Users obtain high-contrast images in a wide temperature range characterized by high measurement accuracy.

Solution for measurement tasks with high object temperatures and spectral thermography
The tremendous benefits that come with it become clear as soon as users thermally analyse measurement objects that experience temperature changes over a very wide range within a very short time. The necessary changing of filters with a standard rotating filter wheel would interrupt the measurement for several seconds, rendering the results unusable. The HDR function makes it possible to quickly switch between calibration ranges up to the maximum camera frequency.

In addition to extremely high temperature applications, the fast rotating filter wheel offers a wide range of measurement options, in which different spectral ranges need to be measured. Finally, users can also use up to six spectral filters instead of neutral density filters. Equipped in this way, the ImageIR® infrared camera series supports the professional examination of materials with different radiation properties. Regardless of which components users choose for their desired model, the camera can always be used with a fixed rotating filter wheel.


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Application Examples – Digital Image Correlation VIC-3D

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Evaluating the Radial Force Profile of a Stent

Data courtesy of Dr. Kenneth Perry, EchoBio, LLC.


Application Overview

Medical device manufacturers have the responsibility to create and maintain efficient and safe products to keep the world population healthy. Dr. Kenneth Perry of EchoBio LLC is an industry leader and expert on the experimental validation of implantable medical devices. Recently, Dr. Perry was tasked with evaluating the radial force profile of a braided, self-expanding stent for use in correcting blocked blood vessels. Dr. Perry specifically needed to examine how the radial force changed from the end of the stent to the middle of the stent. This quantitative data is critical to the proper design and function of the stent, and Digital Image Correlation was the only technology commercially available that could provide the measurements needed at the required accuracy. Dr. Perry utilized the VIC-3D system to make such measurements with valiant success that could potentially revolutionize the medical device industry.


Figure 1. Experimental setup using the VIC-3D system

Dr. Perry began his experiments using perfectly straight silicone tubes that were custom made to have mechanical properties similar to a blood vessel. His experimental setup is shown above in Figure 1. The experiment involved deploying the stents into the tubes and measuring the resulting deformation. Dr. Perry knew that any simplified point or line measurement on his samples would have been misleading. This is where the VIC-3D system enters the experiment and provided Dr. Perry with the full field data he needed to be confident in his measurements and publish accurate results for his client.

Figure 2. Speckled silicone tube with stent inserted.

The silicone tube was prepared for the experiment by having a speckle pattern applied by using off the shelf spray paint. The area of interest was masked off and a white base coat applied. The black speckles were then simply added by using an over spray technique with black spray paint. Figure 2 above shows the speckled silicone tube with the stent inserted.

Figure 3. Change in radius contour under load from expanded stent.

The change in radius variable and resulting contour plot was the most valuable data for Dr. Perry because it clearly shows the largest force is located near the end of the stent. This contour plot, shown above in Figure 3, also indicates areas of larger radial force that could have gone unnoticed using traditional measurement techniques.

Figure 4. 3D change in radius contour plot showing displacement vectors.

Not only did Dr. Perry obtain full-field displacement data, he was also able to easily quantify the radial force profile of the stent and show the circumferential variation that resulted from the underlying woven stent structure.  Figure 4 above shows the displacement vectors of the stent in a full-field 3D contour plot. The displacement vectors show the magnitude of the resulting deformation which allows Dr. Perry to easily interpret the data as well as publish professional results for his client. The VIC-3D system gave Dr. Perry the ability to measure with confidence.


“Vic-3D was an amazing tool. Any simplified line or point-wise measurement would have been misleading. Vic-3D gave us full-field data we needed to be confident with the measurements.” -Dr. Kenneth Perry, ECHOBIO LLC

“We needed robust calibration, documentation and high-fidelity measurements so we designed our experiment accordingly using the VIC-3D system.”

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Thermal Imaging at Incredible Detail

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We recently had a look at an old iPhone 6 using Infratec’s ImageIR 9400, one of the most versatile IR cameras on the market. The spatial resolution of these cameras mean that the experiment was able to measure down to 1.25µm/pixel.




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Back Illumination High Speed Imaging

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Back illuminated imaging is a widely used imaging technique. Under the correct conditions it can provide high contrast images of object’s. This is particularly important if you are interested in an objects’ shape or size.

The idea is a simple one – a light is shone towards the camera creating a white image, the subject is then passed between the light source and the camera thus blocking the light path and creating a dark area on the image. If the subject is stationary you can focus your camera onto the objects’ profile and obtain a sharp outline. If the subject is moving, in order to freeze the motion (remove blur) and obtain a crisp outline you will need to have a sufficiently fast shutter (short exposure time).

In extreme cases a strobe light source such as a pulsed laser or LED can be used. (For more detail on lasers please see our laser range.) Using this technique you will not be able to obtain 3D information about the object shape. If you wish to resolve features on the object surface you can use a combination of front and back lighting. The technique is not limited to solids, it can equally be applied to fluids, multi-phase flows, in fact any subject that will completely or partially block the path of light to the imaging sensor.

Optical Set up: The best results are obtained with a diffuse light source. This can be achieved by passing the light through a light diffusing medium such as a ground glass or opal diffuser plate, alternatively as a low cost solution opaque drawing film works very well. Where it is not possible to position the light behind the subject you can reflect it back to the camera using a white background


  • 1.  Spray analysis
  • 2.  Droplet impaction / coalescence
  • 3.  Particle size and shape
  • 4.  Bubble formation and growth
  • 5.  Ballistics
  • 6.  Welding

Analysis of Thermal Conductivity

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Lock-in Thermography with Infrared Camera VarioCAM® HD research 800 (exact model not available in Australia)

New materials with precisely controlled optical and thermal transport characteristics can make a large contribution to resource-saving thermal management. Scientists of the University of Bayreuth are pursuing this vision. They use infrared thermography to quantitatively determine thermal conductivity in nano- and mesostructured polymer materials.

Thermal conduction and thermal radiation are essential transport mechanisms that play a key role in various applications, from the smallest microchips to complete buildings. Their control requires a sophisticated material design that reaches into the nanometre range. Prof. Markus Retsch and his team from the Chair for Physical Chemistry 1 of the University of Bayreuth are working on the development and characterisation of such innovative materials. Modern cooling and air conditioning systems still require an external energy supply. But the cooling technology of the future should work without additional energy. To achieve this, materials are needed that selectively radiate heat. This can take place, for example, in clear weather when radiation occurs into very cold outer space through the so-called “Sky Window” in the long-wave spectral range of 8 … 13 µm, in which the atmosphere is transparent. “This process is called passive cooling,” explains Prof. Retsch, “and requires materials that emit heat via thermal radiation within a selective spectral range. At the same time as little solar energy as possible should be absorbed from the sun, for instance by improving the reflection or scattering properties of the material.”

Thin Samples Actively Excited by a Laser

On the path to such passive cooling materials, understanding of the thermal conductivity process is important. To do this, Prof. Retsch’s group is working with free-standing samples of, for example, thin polymer foils, 3D-prints, and fibre mats with a film thickness of only a few hundred micrometres. These samples are investigated with the goal of determining their direction-dependent thermal diffusivity. With this value and including the specific heat capacity and density of the sample, the corresponding thermal conductivity is calculated.

As part of the analysis, the measurement objects are excited by an intensity-modulated laser. Depending on the characteristics of the sample, the heat flux extends differently into the material (see fig. 1). The scientists actively control the entire measurement through the thermography software IRBIS® 3. The infrared camera that they use, VarioCAM® HD research 800 from InfraTec, detects the emitted infrared radiation, whose intensity varies with the lock-in modulation frequency.

Thermal Imaging Software

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A high-quality infrared camera is the basis for successfully using infrared thermography to solve your measurement and testing tasks. However, the full potential can only be achieved with an equally powerful software. The result of Infratech’s R&D and hard work is their modular software family IRBIS® 3. Its range of functions can be configured to suit your application, so that the ideal package is available to you.

  • Modular concept for application-specific configuration
  • Compatibility with all camera models by InfraTec
  • Convenient camera control and data acquisition
  • Numerous analysis functions and tools
  • Lock-in mode for the analysis of amplitude and phase images and other complex evaluations
  • Consistent visual display of all measurement data
  • Professional compiling of thermographic reports
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High Speed Camera Rental Australia

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A rejuvenated red Kookaburra ball has been introduced for the final two round of Austrlia’s state cricket league before the KFC Big Bash break will feature a subtly different ball which has been subject to ongoing testing and tinkering by Kookaburra in recent years.

The testing, carried out at Kookaburra’s facility in Melbourne, utilised a number of different techniques including the Photron AX200 32GB camera to film compression and impact of the ball. The camera was only needed for a short time during the testing period so a short term rental was organised along with some basic remote training and trouble shooting. The below video and outcome of the trials show just how easy the Photron PFV software and camera is to use.



Full article: https://www.cricket.com.au/news/new-kookaburra-ball-to-be-trialled-in-next-two-rounds-of-marsh-sheffield-shield-cricket-australia/2019-11-27

Promon Streamer G1 Now Available – Long Recored High Speed Camera System

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The Promon Streamer G1 is the perfect long record high speed camera system for the production floor across a number of industries. The compact footprint makes the Streamer a perfect system for permanent installation on a production line. Beside the high speed recording feature and the long time recording capabilities, the built-in I/Os allow control from PLC – so it’s ready when you need it. The versatile system is available in different variations such as built-in camera, with an additional external camera, or two external cameras. The control software is based on Imaging Studio v4, all features are easy configurable by the software.

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