What is NETD and why dose it matter?
Sales Engineer: Grace Gao
Email: grace@bri-elec.com
WhatsApp: 0086-199 2997 5286
BRI-350B handheld thermal imaging binoculars adopts high-sensitivity uncooled infrared focal plane detector, advanced imaging circuit, and optimized optical system.
NETD＜50mk/384*288px at 12 μm/IP66/long detection range (4.5km for vehicles and 2.5 for human)
What is NETD？
NETD is the abbreviation of Noise Equivalent Temperature Difference. NETD is a figure-of-merit that characterizes an Infrared camera system’s sensitivity. In general, images generated by infrared systems are sensitive to noise and low in contrast. Infrared systems suffer from mainly two types of noise: temporal noise and spatial noise In other words, NETD is a measure for how well a thermal imaging detector can identify between very small variations in thermal radiation in the image. It can be represented with numbers and the lower the number, the more sensitive the camera. It is also defined as the minimum detectable temperature difference between an object and its background.
Why is NETD important?
- Clearly see the objects in the IR-image
- Higher sensitivity of target objects
- Easier to catch the focus
- More accurate information wіth better images
- Good images are easier to understand
It is an industry standard to measure NETD at a 25°C background temperature. However, the NETD can change as a function of background temperature. For example, a change in 100.0 °C to 100.1 °C will have a greater delta in radiation than 25.0C to 25.1C. Therefore, the NETD is better at a 100C background than a 25C background.
Our BRI-350B handheld thermal imaging binoculars has high performance with NETD＜50mk (1mk=0.001°C), and thus it enables users to get quite clear and accurate imaging effects). Our factory has a professional R&D team that can customize products to fully meet your needs. Warmest welcome you to visit our factory and our production ability.
Sales Engineer: Grace Gao
Email: grace@bri-elec.com
WhatsApp: 0086-199 2997 5286
