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Termisk Systemteknik, a company based in Linköping, Sweden, has developed an aircraft-based system using a Flir SC7600 thermal-imaging camera to effectively monitor and maintain local district heating networks.

According to Flir Systems, maintaining a large district heating network can be a difficult task.

In Scandinavia, district heating systems have been installed in many of the larger cities. However, a significant portion of the district heating infrastructure is quite old. Old pipes tend to degenerate over time as a result of corrosion and will eventually start to leak.

To solve this problem, thermography specialists at Termisk Systemteknik mounted a Flir SC7600 on the bottom of a small aircraft. By flying over the city and recording the thermal images, a thermal map is produced of the entire city on which district heating leaks can be detected and located.

Key benefits of product application

  • The Flir SC7600 was especially useful for this application because of its high frame rate and short integration time.
  • The camera was able to capture full-resolution thermal images at a frame rate of 100Hz.
  • Such high-speed acquisition and short integration time proved to be indispensible when flying over a city at moderate speed while capturing sharp and clear thermal images.

FLIR Systems specialises in technologies that enhance perception and awareness.  The company brings innovative sensing solutions into daily life through its thermal imaging and visible light imaging technology and systems for measurement, diagnosis, location and advanced threat detection.  Its products improve the way people interact with the world around them, enhance productivity, increase energy efficiency and make the workplace safer.

FLIR Systems has six operating segments – surveillance, instruments, OEM and emerging markets, maritime, security and finally, detection. Of these six, ‘instruments’ is of greatest interest to trade and industry and the second largest segment in the company’s portfolio. This division provides devices that image, measure and assess thermal energy, gases and other environmental elements for industrial, commercial and scientific applications.

These products are manufactured across five production sites, three in the USA and two in Europe; Sweden and Estonia.

A model to suit every application and budget
The options that FLIR Systems provides for measuring temperature and studying thermal performance have never been greater.  Not only does the company offer a huge range of models to suit all thermal application needs but the technology is also affordable and very easy to use.  Thermal cameras now come in various shapes, sizes and degrees of sophistication and FLIR continues to invest heavily in the development of new and complementary technologies to differentiate itself from competitors.

An important milestone in the development of thermal imaging has been the introduction of the FLIR Lepton® core, a micro longwave detector, the size of a mobile SIM.  This has allowed thermal imaging to be repackaged to meet the needs of an even wider audience and, in combination with another new technology called Infrared Guided Measurement – IGM™ – has led to the development of a range of test and measurement meters with imaging capability.

Another important growth area for FLIR thermal imaging is in continuous monitoring to assure quality and safety.  Through its introduction of discrete fixed mounted thermal cameras which are fully compliant industry standard plug-and-play protocols, FLIR Systems has provided industry with infrared machine vision which is instantly ready for quick and easy network installation.

Protecting assets and people from fire is an area for which thermal imaging is least known but, thanks to FLIR Systems’ development, it is now one of the most cost-effective methods available.  Its application flexibility and rapid return on investment present an attractive proposition for any site or safety manager.

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