What is a thermographic camera?
Thermographic camera is a camera type that creates an image using infrared light. This technology can also be called an infrared (flir) or thermal display. Unlike normal photo or camcorders that record different wavelengths of visible light as images, these devices detect invisible, infrared light, also known as heat. They basically create visual representation of heat.
Infrared is electromagnetic radiation with longer wavelength than visible light. It is therefore invisible to the human eye. Most thermographic cameras are designed to detect these longer wavelengths and distinguish different levels of infrared intensity. For example, living creatures usually emit higher levels of infrared than inanimate objects, so they may occur with greater intensity in the infrared image.
Thermographic camera often creates an image based on the intensity of infrared waves that affect its dreamzora. The image can show where the heat source is located and how much heat it produces relative to the objects around it. The ability to detect higher and lower intensity of infrared radiation can be useful in various fields such as medicine, law enforcement, architecture and archeology.
Many of these cameras are monochrome and change Jab colors based on the intensity of infrared radiation. Others assign different colors to each range of intensity, called false color. Infrared light is not color, because it is not visible light, so the false color thermographic camera assigns the colors of the infrared level. These cameras usually show white as infrared intensity; yellow and red for middle class levels; and blues for low.
usually each thermographic camera carries on board an infrared detector. The detector allows the computer to create an image by overlapping the light gradients anddarkness or false Colors. There are two main types of these detectors, chilled and unwavering.
chilled infrared detectors are usually located in a closed housing and cryogenically cooled below the ambient temperature. These detectors are often highly accurate because neither the ambient temperature nor the equipment itself can disrupt the thermal sensor. This generally allows the camera to receive accurate infrared energy measurement in the camera vision line.
non -cooled infrared detectors are not cryogenically cooled, but instead rely on sensors that create the value of the basic temperature. If the thermographic camera can largely establish its values from the ambient temperature, it should be able to represent changes in the infrared temperature. These cameras are usually not as accurate as chilled versions, but advances in technology can do so in time.