What is spot size ratio?

To determine how far away you can measure, you need to know the spot size ratio (SSR) of your camera. Also known as the Distance:Size ratio (D:S. ratio), this ratio tells you how far you can be (Distance) from a target of a given size (Size) and still get an accurate temperature measurement.

What does FLIR measure?

A: FLIR thermal cameras detect heat radiation and can be used to identify the surface temperature of objects and people.

What is the range of a FLIR camera?

The FLIR ONE Pro operates at 32°F to 95°F (0°C to 35°C) and can detect temperatures from -4°F to 752°F (-20°C to 400°C). Q: How far away can I see a hot spot? A: Thermal cameras, like visible cameras, can see as far as your eye can see in most cases.

How to calculate the size of a pixel in FLIR?

Click on “FOV calc.” next to the correct camera, and quickly find the IFOV (in inches or mm) for any given distance (in feet or meters). If we use the FOV calculator for the FLIR E8 and type in 10 ft (120 inches), we get an IFOV of 0.31 inches. This number is the measurable size of one single pixel (1 × 1).

How big is the resolution of a FLIR pyrometer?

The FLIR T1030sc, one of the top models for industrial R&D/Science applications, has an image resolution of 1024 x 768 pixels, giving you 786,432 temperature readings at once. What a spot pyrometer ‘sees’. What a thermal imaging camera ‘sees’. What a spot pyrometer ‘sees’. What a thermal imaging camera ‘sees’.

How is the spot ratio of an infrared imager calculated?

Although many modern infrared imagers are capable of measuring temperature, infrared equipment manufacturers generally do not provide information regarding spot size nor how to calculate it. In contrast, non-imaging radiometers have always expressed spot size as a distance to target ratio such as 50:1.

How big is a pixel on a FLIR E8?

If we use the FOV calculator for the FLIR E8 and type in 10 ft (120 inches), we get an IFOV of 0.31 inches. This number is the measurable size of one single pixel (1 × 1). By plugging those numbers into the SSR formula: