There are a number of components that contribute to both the quality and the price of a thermal imaging camera. The two most vital factors are the detector decision and the thermal sensitivity.
Thermal sensitivity is the smallest temperature difference the camera can detect. A sensitivity of 0.05° means the camera can distinguish between surfaces with only a 5-hundredths of a degree temperature difference.
Another essential factor to consider is the thermal imaging camera’s temperature range. The range tells what the minimal and most temperatures are that the camera can measure (-4°F to 2200°F is typical).
To obtain the best thermal image to analyze, there are 4 adjustments that can be made to most cameras: focus, emissivity setting modifications, reflective temperature setting changes and thermal tuning. Every of these adjustments should be considered when choosing a thermal imaging camera.
Just like a standard camera, the lens of the thermal imaging camera must be targeted to boost the clarity of the image. Most cameras will be targeted by twisting the lens. More sophisticated cameras have a push-button focus.
Emissivity is the amount of radiation emitted from an object compared to that of a perfect emitter of radiation when each are on the similar temperature. Adjusting the emissivity is essential when taking temperature measurements or when comparing the temperatures of totally different objects. Not all cameras allow the user to enter reflective temperature.
The reflective temperature setting permits the person to compensate for surrounding objects’ temperature reflecting on an object. Just like emissivity, reflective temperature is essential when taking temperature measurements or evaluating two objects’ temperatures. Not all cameras allow the person to input reflective temperature.
Thermal tuning the camera entails adjusting the span or temperature range that the camera sees while in handbook viewing mode. Guide mode permits the person to adjust the span to a desired range, and the camera will all the time show this temperature range. Using the handbook mode is greatest when used to convey out temperature variations of the item being viewed.
Thermal Imaging Camera Limitations
Because thermal energy can be mirrored off shiny surfaces, thermal imaging cameras can not see by means of glass. Thermal imaging cameras can be used to collect details about the inside of a wall, however they can not see by means of walls. Additionally it is important to know that thermal imaging cameras shouldn’t be used as the only deciding factor that an issue exists. Using other devices should all the time be used to confirm the problem.