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Phone: 805-965-3669            Email: sales@sbir.com

Target Calculator


To calculate a desired barwidth

SBIR recommends using the following percent values of Nyquist. 0.2, 0.5, 0.8 & 0.95


Collimator Focal Length (inches) =
Desired Spatial Frequency (cy/mrad) =

Barwidth (inches) = 0.0300

Please note the max. bar width that can fit in our target wheels:

Model | Max. Bar Width(inches)

312 | 0.1616

313 | 0.2727

316 | 0.2727

317 | 0.2727