What does an infrared camera primarily detect?

An infrared camera primarily detects infrared energy, which is essentially heat. This type of camera is designed to capture the thermal radiation emitted by objects, allowing it to visualize temperature differences and variations in heat. It operates on the principle that warmer objects emit more infrared radiation than cooler ones, making it an invaluable tool in various applications, including building inspections, energy audits, and environmental monitoring.

Utilizing infrared cameras can help identify areas of heat loss in buildings, detect moisture intrusion that may signify mold growth, and provide insights into the efficiency of HVAC systems. The ability to visualize heat patterns plays a crucial role in assessing potential mold hazards and addressing building envelope issues.

In contrast, while a black body energy option might relate to thermal dynamics, it doesn't specifically pertain to the technology of infrared cameras. Visible light energy and ultraviolet energy are forms of electromagnetic radiation outside the infrared spectrum and are not detectable by infrared cameras. Hence, focusing on the detection of infrared energy makes it clear why this choice is the accurate answer.