What is an IR camera?
IR camera is an infrared device that creates images from infrared radiation. IR camera, also known as a thermographic camera, uses wavelengths longer than visible light to create images even in overall darkness. The two main types of cameras are cooled infrared detectors and non -cooling infrared detectors. The warmer the object, the more radiation emits and the more intense the color of the image. The standard IR camera shows the image intensity based on the color spectrum. The hottest part of the picture will reflect white, then the less warm part will reflect red and yellow. The cold parts will be the least intense or clear and will be reflected as blue. Instead of collecting radiation and its transformation into an image, a cooled infrared detector is used by the well-known cooling technique of Joule-Thomson. By cooling the device by cryogenics, the radiation detected in the object can be selected to create a much clearer image than a traditional IR camera. Special training and certifi are requiredKace and there are three levels of certification based on the amount of training and experience the applicant has.
The Joule-Thomson effect works by changing the gas temperature by forcing it to the valve. When carried out in a vacuum -sealed environment, such as an IR camera, the semiconductor components are able to cool, allowing the device to convert radiation into a sharper image. Without a cooling effect, the image would be much more familiar, as too much radiation would be absorbed when the image was converted. Due to the costs of chilled infrared detectors, they are usually used only for military, fire fighting and air applications. Enforcement also uses this type of IR camera for night vision and anti -terrorism activities.
The second type of IR camera is an unhappy infrared detector. This type does not require cooling and simply works at the ambient temperature. The unwilling infrared detector works by sensing the heat emittedé from the object and convert it to the image using changes in voltage or current. Less expensive alternative to cooled infrared detectors, most often used by infrared infrared detector in buildings, detects leaks in cooling systems and analysis of mold remediation.