lämpökameroissa

Lämpökameroissa, known in English as thermal cameras, are devices that detect and image infrared radiation, which is emitted by all objects with a temperature above absolute zero. These cameras translate the invisible infrared energy into visible images, allowing users to see temperature differences. The intensity of the infrared radiation corresponds to the temperature of the object, and the camera's display uses a color scale or grayscale to represent these variations.

The technology behind thermal cameras is based on specialized sensors, typically bolometers or microbolometers, which are sensitive to infrared wavelengths. When infrared radiation strikes these sensors, it causes a change in their electrical resistance or generates a small voltage. This electrical signal is then processed by sophisticated electronics to create a thermal image. Different types of thermal cameras exist, varying in their resolution, sensitivity, spectral range, and features.

Thermal cameras have a wide range of applications across various industries. In building inspections, they are used to identify areas of heat loss, insulation defects, and moisture issues. In industry, they monitor the temperature of machinery and electrical equipment to detect potential failures before they occur. Public safety and security utilize them for surveillance, search and rescue operations, and in law enforcement. The medical field employs thermal imaging for diagnostics, such as detecting inflammation or circulatory problems. Furthermore, they are valuable tools in scientific research, agriculture, and even in automotive applications.