IR Heat: You Need to Know

Those planning to buy diagnostic systems belonging to the IR Thermal Imagers must necessarily know the different types that distinguish and differentiate this kind of instrumentation.

First of all these tools are divided into 3 different groups:
– not radiometric thermal imagers
– Heat radiometriche
– Heat multispettrali

Non radiometric IR cameras

Initially IR cameras are not born as a means of measuring temperature, but as detectors of thermal energy (associated emission infrared) without contact of a surface or of an object (non-invasive).
Le termocamere IR non radiometriche therefore, provide a & rsquo; Thermal image view only the temperature differences, then on such equipment you can not measure the absolute value of the temperature of objects detected.

Fields of application:
fotIR8Not radiometric thermal imagers, usually they are mounted on drones for inspections of large extended photovoltaic panels. From these analyzes it is possible to identify quickly and accurately the cells Malicious.

 


IR Heat radiometriche

The IR Heat radiometriche allow, in addition to the display of the front heat framed, to measure the temperature value of each point on the display .
The image, In fact, It is built on a matrix of pixels organized in rows and columns. The electronics of the instrument simultaneously detects the energy value recorded by each pixel of the observed object.

There are IR cameras of different resolutions, from more limited (a few pixels across by a few vertical pixels) the pi & ugrave; characterized by sophisticated arrays of thousands of pixels per line and for column.

More pixels means obviously greater detail, but it also means a very considerable technical complexity and a large price difference (which can be up to hundreds of thousands of euro).

A good compromise is the method (now common on many models) to overlay the infrared display (usually not very detailed) Also the visible front (more detail); this allows to easily recognize the framing area saving on a very expensive sensor that, for normal professional inspection, It need not necessarily be of high resolution.

Thermal imagers use IR radiometric, in addition to the sophisticated algorithms adapted to highlight the temperature values ​​in one or more points of the display contemporary; also special software for interfacing with the PC with which you can quickly create professional thermography reports and precise.

Fields of application:
fotIR7Le Heat IR radiometriche, They are widely used in thermal inspections of buildings, the checking of faults, in the search for losses, in mechanical engineering, electrotechnical, plant engineering and in the resolutions of technical problems related to temperature. A very modern and fast inspection method that allows, with a relatively inexpensive instrumentation, to solve complex technical problems with speed and precision.

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IR Heat multispettrali

A thermal imaging with multispectral sensor is capable of recording mainly natural radiation released (or reflected) object or surface inspected, but it is also able to detect other areas of the electromagnetic spectrum (example, the band visible, infrared and thermal radiation)

The combination of all these detections (said multispectral imaging), you can get great and useful information about the land, on crops and vegetation in general.

Fields of application:

fotIR1– vegetation classification and monitoring of the health of the same based on biophysical and vegetation indices.

 

Click to enlarge
Identification of types of soil, vegetation and crops with their state of health.

 

fotIR3– Identification of forest fires, l & rsquo; analysis of fires in course, the environmental impact assessment of regions burned and then repopulated.

 

fotIR4– Identifying areas of waste unauthorized (illegal dumping).

 

fotIR5– Identification, mapping and monitoring of’asbestos (roofing and asbestos roofs and cement).

 

fotIR6– Thermal behavior surface water, mapping of algal types and their spread, turbidity and water color, detection of paleochannels and analysis of thermal anomalies.

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