What Is the Principle of Multifunctional Thermal Imaging Sight?

The principle of multifunctional thermal imaging sight is mainly based on the detection and conversion of thermal radiation.

1. Basic principle of multifunctional thermal imaging sight

Thermal radiation: All objects with a temperature above absolute zero will radiate energy due to the movement of their internal atoms and molecules. This energy is called thermal radiation. The wavelength range of thermal radiation is very wide, including infrared, visible light and ultraviolet light, but the infrared band (especially the mid- and far-infrared band) is the most widely used in thermal imaging technology.

Thermal imaging technology: Thermal imaging technology captures and measures the thermal radiation emitted by the target object through specific equipment, and then converts this thermal radiation information into a visual image. These images are usually displayed in different colors or grayscale levels, representing the temperature distribution on the surface of the object.

2. Working process of multifunctional thermal imaging sight

Thermal radiation detection: multifunctional thermal imaging sight has built-in highly sensitive thermal radiation detectors, such as vanadium oxide uncooled focal plane detectors. These detectors can capture infrared radiation emitted by the target object.

Signal conversion: The detector converts the received infrared radiation signal into an electrical signal. This conversion process usually involves physical mechanisms such as photoelectric effect and pyroelectric effect.

Signal processing: The converted electrical signal is amplified, filtered, and processed to remove noise and interference and improve signal quality. At the same time, advanced digital image processing technology, such as FPGA technology, may be used to process the image in real time to enhance the clarity and contrast of the image.

Image display: The processed image signal is transmitted to the display screen to display the temperature distribution of the target object in a visual form. Users can judge the temperature state, thermal distribution characteristics, and other information of the target object by observing the image on the screen.