At distances greater than 5–10 meters, atmospheric absorption reduces the signal reaching the detector. The camera’s internal compensation assumes a clear, dry atmosphere, leading to underestimation of temperature.
A 14-bit ADC yields 16,384 digital levels. If the temperature range is set to -20°C to +120°C (140°C span), each count ≈ 0.0085°C—negligible. But if the span widens to 1000°C, quantization error becomes significant.
Use a spectroradiometer to characterize ε(λ) or switch to a short-wave camera (0.9–1.7 µm) for low-emissivity metals.
To ensure your meets industry expectations, reference these standards:
Perform automatic gain correction (AGC) or external blackbody referencing every 15 minutes.
At distances greater than 5–10 meters, atmospheric absorption reduces the signal reaching the detector. The camera’s internal compensation assumes a clear, dry atmosphere, leading to underestimation of temperature.
A 14-bit ADC yields 16,384 digital levels. If the temperature range is set to -20°C to +120°C (140°C span), each count ≈ 0.0085°C—negligible. But if the span widens to 1000°C, quantization error becomes significant. infrared thermography errors and uncertainties pdf
Use a spectroradiometer to characterize ε(λ) or switch to a short-wave camera (0.9–1.7 µm) for low-emissivity metals. At distances greater than 5–10 meters
To ensure your meets industry expectations, reference these standards: infrared thermography errors and uncertainties pdf
Perform automatic gain correction (AGC) or external blackbody referencing every 15 minutes.