What to Look for in a Thermal Imaging Camera
There are a number of components that contribute to both the standard and the cost of a thermal imaging camera. The two most vital factors are the detector resolution and the thermal sensitivity.
Thermal sensitivity is the smallest temperature distinction the camera can detect. A sensitivity of 0.05° means the camera can distinguish between two 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 maximum temperatures are that the camera can measure (-4°F to 2200°F is typical).
To acquire the perfect thermal image to analyze, there are 4 adjustments that may be made to most cameras: focus, emissivity setting changes, reflective temperature setting modifications and thermal tuning. Each of these adjustments have to be considered when selecting a thermal imaging camera.
Just like a standard camera, the lens of the thermal imaging camera needs to be targeted to reinforce the readability of the image. Most cameras might be focused by twisting the lens. More sophisticated cameras have a push-button focus.
Emissivity is the quantity of radiation emitted from an object compared to that of a perfect emitter of radiation when both are on the similar temperature. Adjusting the emissivity is important when taking temperature measurements or when comparing the temperatures of two totally different objects. Not all cameras allow the person to enter reflective temperature.
The reflective temperature setting permits the consumer to compensate for surrounding objects’ temperature reflecting on an object. Just like emissivity, reflective temperature is essential when taking temperature measurements or evaluating objects’ temperatures. Not all cameras permit 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. Handbook mode permits the user to adjust the span to a desired range, and the camera will at all times show this temperature range. Using the manual mode is greatest when used to convey out temperature differences of the object being viewed.
Thermal Imaging Camera Limitations
Because thermal energy might be reflected off shiny surfaces, thermal imaging cameras can not see via glass. Thermal imaging cameras can be used to assemble details about the inside of a wall, systems but they cannot see by way of walls. It is also important to know that thermal imaging cameras shouldn’t be used as the one deciding factor that a problem exists. Using other instruments ought to all the time be used to substantiate the problem.