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Home » Product Range » Infrared thermography, thermography » Selection Tips » Thermal Camera Basic Types and Characteristics
(Market supply professional overview)
Types and Characteristics of Thermal Cameras - Thermographic devices suitable for contactless temperature measurement (infrared cameras with thermographic capabilities) have undergone rapid development in recent years. Considering that these devices appeared just 50 years ago, but have now grown into one of the most well-known and versatile inspection tools, it is no surprise to see a wide variety in the market offerings (manufacturers, types). For a customer planning to purchase a thermal camera, the challenge is no longer the lack of suitable types to meet their needs, but rather the overwhelming variety of options available. Therefore, it is time to professionally review the development and types of these instruments, and organize the current offerings based on some important technical parameters. Because: The measurement technology implemented in the cameras and the accessories available determine the device's application area, as well as the expected measurement accuracy and the achievable thermal image quality.
Scanning Thermal Cameras - the "disappeared" peak technology of the beginnings
The very first commercially available thermal cameras suitable for temperature measurement were primarily produced in scanning (scanning) design. These use only a single-element ("point"-) detector to convert the infrared radiation and scan the object to be measured with a mechanical (mirror or lens)-system. Since this imaging principle requires a high-speed (photon-) detector and high-precision mechanics, its production is quite expensive, requires cooling, and due to the mechanical components, it has a limited lifespan. Nevertheless, it has a significant advantage over all other methods: the signal for each image point is mapped by the same detector. Thus, the data for each point of the thermal image are created under perfectly identical conditions, achieving very good image homogeneity (and up to 10mK thermal image resolution). The slowness of image formation (typically only one image per second), as well as the other disadvantages listed above, have led to this thermal camera technology being available at best as a used device.No further information available.
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Home » Product Range » Infrared thermography, thermography » Selection Tips » Thermal Camera Basic Types and Characteristics