// multi-utility computation suite · offline · instant · precise
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sci.michelson-interferometer-fringe Calculator
Calculates fringe spacing, path difference, and wavelength measurement precision for a Michelson interferometer. The Michelson-Morley interferometer (arm length ~11 m) could detect path differences of λ/20 ≈ 28 nm — sufficient to detect the ether drift it ultimately failed to find.
Inputs
Path Difference Nm
Reference formula or conversion factor shown for context.
Wavelength Nm
Distance between successive wave crests. Related to frequency: λ = speed / frequency.
Refractive Index
Reference formula or conversion factor shown for context.
Results
interference order m
Sample size or count used in the calculation.
phase difference (rad)
The arithmetic difference between the two values.
normalized intensity (0=dark, 1=bright)
Sample size or count used in the calculation.
fringe type
The classification or type assigned based on the inputs.
λ = 2d/m
Reference formula or conversion factor shown for context.