There are a number of parts that contribute to both the quality and the cost of a thermal imaging camera. The two most necessary 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 surfaces with solely a 5-hundredths of a degree temperature difference.
One other necessary factor to consider is the thermal imaging camera’s temperature range. The range tells what the minimum and maximum temperatures are that the camera can measure (-four°F to 2200°F is typical).
To acquire the most effective thermal image to investigate, there are four adjustments that can be made to most cameras: focus, emissivity setting changes, reflective temperature setting changes and thermal tuning. Every of those adjustments have to be considered when deciding on a thermal imaging camera.
Just like a regular camera, the lens of the thermal imaging camera must be centered to boost the readability of the image. Most cameras could be centered 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 an ideal emitter of radiation when each are on the same temperature. Adjusting the emissivity is essential when taking temperature measurements or when comparing the temperatures of two different objects. Not all cameras allow the user to enter reflective temperature.
The reflective temperature setting allows the person to compensate for surrounding objects’ temperature reflecting on an object. Just like emissivity, reflective temperature is necessary when taking temperature measurements or evaluating objects’ temperatures. Not all cameras enable the consumer to enter reflective temperature.
Thermal tuning the camera entails adjusting the span or temperature range that the camera sees while in guide viewing mode. Handbook mode permits the consumer to adjust the span to a desired range, and the camera will all the time display this temperature range. Using the handbook mode is best when used to deliver out temperature differences of the item being viewed.
Thermal Imaging Camera Limitations
Because thermal energy will be reflected off shiny surfaces, thermal imaging cameras can’t see via glass. Thermal imaging cameras can be utilized to collect details about the inside of a wall, but they can’t see by means of walls. It is also vital to know that thermal imaging cameras should not be used as the only deciding factor that an issue exists. Utilizing different instruments should at all times be used to confirm the problem.