Whitepaper

Infrared Thermometry and Thermal Imaging Guides: Best Practices on Infrared

The Optris Whitepaper section provides in-depth technical documents focused on the practical implementation and optimization of non-contact infrared temperature measurement. Building on the physical principles outlined in the Knowledge Library, these papers translate theory into real-world engineering contexts and address measurement challenges across industrial applications.

These whitepapers include buyer’s guides and general best practices for stationary industrial infrared temperature measurement.

01. Selection Guide – Pyrometers

Pyrometers are vital instruments in various industries, offering accurate, non-contact temperature readings across a broad spectrum—from monitoring cold chains to managing high-temperature processes in glass and metal production.

01. Selection Guide – Pyrometers

02. Selection Guide – Thermal Cameras

Thermal imaging is an incredibly flexible and non-invasive technology that plays a crucial role in various industries. By capturing infrared radiation

02. Selection Guide – Thermal Cameras

03. IR Pyrometer vs. IR Cameras

Two primary instruments dominate non-contact temperature measurement: thermal cameras and pyrometers. These technologies serve distinct purposes—infrared cameras capture thermal images across multiple measurement points to map temperature distributions over surfaces or areas.

03. IR Pyrometer vs. IR Cameras

04. Short vs. Long-Wavelength

According to Planck’s law, a hotter object emits significantly more infrared energy, and the peak of its emission spectrum shifts to shorter wavelengths as temperature increases.

04. Short vs. Long-Wavelength

05. Single Color vs. Two Color

Infrared pyrometers come in two main types: single-color and two-color pyrometers. The two-color variety is also known as ratio or dual-wavelength pyrometers.

05. Single Color vs. Two Color

06. Thermal vs. Infrared Camera

Infrared and thermal cameras are often mentioned together, but they have distinct roles and capabilities. In the broadest sense, thermal cameras are a specific subset of infrared cameras.

06. Thermal vs. Infrared Camera

07. Detector vs. Optical Resolution

Most industrial infrared cameras use uncooled microbolometers to measure object temperatures or visualize distant targets. Advances in production methods, particularly wafer-level vacuum packing for thin-layer bolometers, have significantly reduced manufacturing costs, supporting wider adoption in industrial applications.

07. Detector vs. Optical Resolution

08. IFOV vs. MFOV

Infrared cameras are often described using two different metrics for field of view, each addressing slightly different questions. Instantaneous field of view, or IFOV, relates to how much of the scene a single detector element can capture through the optics.

08. IFOV vs. MFOV

09. 17µm vs. 12µm Pixel Pitch

Among the key parameters that define the performance of a fixed-mount infrared camera is pixel Pixel pitch is the distance between the centers of adjacent pixels on the thermal sensor.

09. 17µm vs. 12µm Pixel Pitch

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Whitepaper

01. Selection Guide – Pyrometers

02. Selection Guide – Thermal Cameras

03. IR Pyrometer vs. IR Cameras

04. Short vs. Long-Wavelength

05. Single Color vs. Two Color

06. Thermal vs. Infrared Camera

07. Detector vs. Optical Resolution

08. IFOV vs. MFOV

09. 17µm vs. 12µm Pixel Pitch

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