A high accuracy wavelength encoding fiber optic sensor is shown to display surprisingly little sensitivity to temperature or optical source drift. Average measurement error of 0.1 % full scale has been demonstrated over a displacement range of 10 mm.
© 1989 Optical Society of America
W. B. Spillman,Jr., D. R. Patriquin, and D. H. Crowne, "Fiber optic linear displacement sensor based on a variable period diffraction grating," Appl. Opt. 28, 3550-3553 (1989)