Thermal cameras are the types of cameras in which images are formed through the help of infrared radiation. This is sometimes called as Forward Looking Infrared or FLIR cameras with wavelengths of approximately 14000nm. Actually, this is beyond the wavelength of normal cameras which is just at 450 to 750nm range and forming images by using visible light.
Industrial security, high value site protection, perimeter security, border security, deployable security, force protection, asset surveillance, coastal surveillance, urban surveillance, port security as well as airport security are just some of the various applications in which thermal cameras are used. Basically, every living thing is emitting some form of thermal energy and this thermal energy is converted to visible images via thermal cameras. Later, these images are represented in forms of thermographs.
Thermal cameras are much expensive when it is compared to visible spectrum cameras. This is because of the reason that it involves conversion of the thermal energy to visible images. In normal camera, pictures taken will depend on the light around. With this in mind, if we take a photo in low light situation, the end result is often low otherwise, it is often generating a better quality.
Looking On The Bright Side of Images
On the other hand, when a thermal cam is used, it functions very well in almost any type of lighting condition. There is added vision inside the infrared spectrum which expands the vision of whichever object is seen. Thermal temperature that a certain object emits will be seen by thermal cams. They have the capability of detecting and interpreting these emissions and also, provide good quality images to the users even if there is no or low light.
Where To Start with Images and More
We usually come across on two kinds of thermal cameras. One is the cryogenically cooled and the other version is un-cooled. When using un-cooled cameras, it can operate at room temperatures only and have infrared detector elements. These cameras also come with built-in batteries, create no noise and can be activated almost immediately.
For the cryogenically cooled cameras however, these are often on the higher end of spectrum and can be damaged due to rough use. In reality, these cameras have some elements in containers, which may cool them to even below 0 degree Celsius or 32 degrees Fahrenheit. Apart from that, they have remarkable resolutions while their sensitivities allow users to observe minute differences similar to 0.1 C or 0.2 F even if these cameras are positioned at a distance that’s greater than 300m or 1000ft from the object.
The purpose where the thermal camera will be used is what would determine which one to get.