mikrobolometrikus

Mikrobolometrikus refers to a type of uncooled infrared detector that utilizes an array of microbolometers to sense thermal radiation. A microbolometer is a resistive temperature sensor that experiences a change in electrical resistance when its temperature changes. In a microbolometric array, each pixel is a tiny thermistor or similar resistive element. When infrared radiation strikes a pixel, it is absorbed and converted into heat, causing a change in the resistance of that pixel. This resistance change is then measured and converted into an electrical signal, which is processed to create an image representing the thermal distribution of the scene. Unlike cooled infrared detectors that require cryogenic cooling to achieve high sensitivity, microbolometers operate at or near room temperature, making them significantly more compact, less power-hungry, and more cost-effective. This uncooled nature has led to their widespread adoption in various applications, including thermal imaging cameras for security, surveillance, industrial inspection, and even consumer electronics. The performance of microbolometric detectors is characterized by parameters such as noise equivalent temperature difference (NETD) and responsivity, which indicate their ability to detect small temperature variations.