Calculate a recommended pinhole diameter from the collimator focal length, unit-under-test IFOV, and selected IFOV multiple. SBIR recommends a pinhole no smaller than 3 times and no larger than 50 times the sensor IFOV.
Pinhole Target Diameter Calculator
Target wheel limits
Maximum pinhole diameter: Model 312, 1.600 inches; Models 313, 316, and 317, 2.700 inches.
Need the sensor IFOV first? Use the IFOV Calculator.
