Thermal fundamentals

Pixel pitch

Detector sampling distance

The centre-to-centre spacing between neighbouring detector pixels.

What it means

Pixel pitch is the distance between adjacent detector sampling positions, commonly specified in µm. It is different from the camera’s spectral wavelength band.

Together with the pixel count, pitch determines the active detector dimensions. With a fixed lens focal length, a change in pitch changes the angular sampling and field of view. Smaller pitch alone does not guarantee better thermal sensitivity.

WORKED EXAMPLE · GEOMETRIC ESTIMATE

640 pixels × 12 µm = 7.68 mm of nominal active detector width.

In practice

Integration note

Use the actual detector pitch and array size when estimating field of view. Confirm the result against the selected lens specification.

Related product resources

Continue with an Engineering Guide ↗

Sources & further reading

  1. SuperMini 640 Product Specifications V1.0.0.pdf
  2. SuperMini 640T Product Specifications V1.0.0.pdf
  3. AeroMini 640 Non-radiometric Product Specifications V1.0.0.pdf
  4. AeroMini 640 Radiometric Product Specifications V1.1.0.pdf

Concept explanations are general. Use the matching product, lens, interface board and firmware documentation for the delivered configuration.

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