Each of the components listed below is associated with the thermal sensor in each thermal unit, directly influencing both the pricing and overall quality.
Thermal sensor size
This is how many pixels are on the sensor. The more there are, the higher the resolution of the image displayed on the screen.
Examples: 160x120, 256x192, 384x288, 640x480, 640x512, 1024x768, 1280x1024
Pixel Pitch
This refers to the distance between individual pixels on the thermal sensor. A smaller pixel pitch allows for a higher density of pixels, resulting in greater detail and clarity in the images produced. The closer they are together, the better the image quality.
Examples: 17UM, 12UM
NETD
NETD (Noise Equivalent Temperature Difference) measures the thermal sensitivity of a thermal sensor, indicating the smallest temperature difference that can be detected by the sensor. A lower NETD value signifies better sensitivity, enabling the sensor to distinguish between subtle temperature variations. This is crucial for producing clearer and more detailed thermal images, especially in low-temperature scenarios. The lower the number, the better the image, as the definition of the target will become more clear.
Examples: <15mK, <18mK, <20mK, <25mK, 35mK, <40mK, <50mK