BALTECH TR - The choice of imager, infrared camera

Rovat: Műszaki cikk, elektronika » Egyéb

Elhelyezkedés: Külföld, Németország, Lübeck | Térkép Megtekintés térképen

A hirdetés feladásának ideje: 2017. 08. 22. 12:36

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BALTECH TR - The choice of imager, infrared camera

The choice of imager

If you have decided to purchase a thermal imager, you should buy a device whose characteristics best match the application. Therefore, we consider the technical data of the device to know which characteristics of the imager will be key in a specific scope, and which are secondary.

 

The upper range of measured temperatures

If you do not require shooting objects of high temperature (over 250°C), it is recommended to purchase thermal imagers, designed for:

 

• Video of buildings in malfunction of building envelopes, ventilation and air conditioning systems;

• Survey equipment;

• Diagnostics of power facilities and other purposes.

 

For these operations, enough to buy the upper boundary not exceeding 250°C.

 

Note and tasks that are not subject to the devices in this range:

• Diagnosis of thermal insulation of steam lines, furnaces, boilers and other high temperature engineering systems. This will require the devices, the upper limit temperature is 600-1000°C;

• Problems associated with the production of coke and cement, ceramics and glass manufacture, heat treatment and metallurgy, etc. there should be a measurement range of temperature 1500-2000°C.

 

Resolution for temperature

If the camera will not be used in scientific research, buy the device with a resolution of 80-100 microns.

Operating conditions

 

For the imager, operated only indoors, the temperature range may be 0-40°C and maximum relative humidity of 80%. Otherwise, these parameters are required to be in the range of, respectively, (-20)-50°C and 90-95%.

 

For the detection of thermal leaks it is recommended to carry out shooting in the winter, when it's negative temperatures are observed. This makes it easier to detect thermal bridges and other problem areas of the building.

 

Angular field of view

Characterization is chosen, based on the estimated size of the studied objects and the minimum defect sizes that are planned for registration. Angular field of view allows to estimate the minimum possible distance to shoot objects of different sizes. Thermal imaging inspection of the building having a height H is permitted with a distance of not less than

 

L=H/tgx,

 

where x angular field of view.

Optics

The optical resolution required to detect the minimum size of defects to be registered in the result of thermal imaging. Formula:

 

D=L*d, where

 

D - the minimum size of the defect detected,

L is the distance to the controlled object,

d - optical resolution (radians).

 

Additional lenses

To obtain high resolution images of small objects, the shooting of which started a large distance, you will need telescopic lenses. It can be shooting the insulators of the transmission line or the upper floors of tall town houses. When the use of such lenses increases the working distance angular field of view decreases.

 

If you are shooting an extended object with a small distance, wide-angle lenses are used. Here it is the opposite: the working distance decreases, the field of view increases.

The size of the matrix

 

The clarity of the resulting images depends on the number of sensitive matrix elements. Typically, the minimum size of the matrix of thermal imaging equipment is regulated by normative acts in this field.

 

On any camera reviews online will be different. We must remember that each model, depending on the characteristics of a specific application area. Therefore, reading reviews about the imager and getting useful information from real users, this fact must be taken into consideration.

 

Our company offers you a simple and inexpensive infrared camera BALTECH TR series are certified in Russia, Germany and Kazakhstan.

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