Very useful thanks
Very useful apps that short cut the calculation
Free
About
This tool simplifies determining the exact field of view for infrared radiometer sensors. Input viewing height and angle, select your sensor model, and get precise measurements for accurate surface temperature analysis.
✓Calculate field of view
✓Input viewing height
✓Input viewing angle
✓Select sensor model
✓Supports Apogee Instruments sensors
✓Simplifies installation
Show original description
What's New in Field of View Calculator
1.0.3
February 27, 2026
Fix bugs
User reviews
Developer apps
FAQ
How do I use Field of View Calculator?
To use Field of View Calculator, simply enter your IRR viewing height (H) and viewing angle (θ, relative to nadir view = 0°). Then, choose your sensor model and click calculate to determine the field of view.
What sensor models does Field of View Calculator support?
Field of View Calculator supports Apogee Instruments SI series infrared radiometers. You select your specific sensor model from a list within the app.
What is the purpose of calculating the field of view?
Determining the exact field of view is crucial for infrared radiometer installation to ensure accurate surface temperature measurements by avoiding unwanted objects or surfaces.
What are the typical applications for infrared radiometers?
Typical applications include plant canopy temperature measurement for water status estimation, road surface temperature for icing conditions, and terrestrial surface temperature for energy balance studies.
Is Field of View Calculator available on Android?
Field of View Calculator is available for iPhone, iPad, and iPod. The provided data does not indicate Android support.
How often is Field of View Calculator updated?
The latest version is 1.0.3, and the app was last updated on February 27, 2026. This suggests a very recent or future update, indicating ongoing development.
What is the age rating for Field of View Calculator?
Field of View Calculator has an age rating of 4+, making it suitable for a wide range of users.
Does Field of View Calculator have ads?
No, Field of View Calculator does not contain advertisements. It is a free application without any ad interruptions.
