Radiant energy – Ionic separation or analysis – Static field-type ion path-bending selecting means
Patent
1987-08-07
1989-04-18
Lee, John D.
Radiant energy
Ionic separation or analysis
Static field-type ion path-bending selecting means
73800, 250227, 356 731, G01N 2117
Patent
active
048221350
ABSTRACT:
An optical wave guide sensor which comprises: a broad-band, radiant energy source; an optical wave guide, such as an optical fiber, rectangular slab or thin film, having a guiding interface and an inlet an outlet, the inlet receiving the radiant energy and the wave guide deformable from one part to another of the guide; and a spectral intensity detector at the wave guide outlet to measure the change in the wavelength of the energy critically reflected from the guiding interface on deformation of the wave guide. A method of measuring the deformation of an optical wave guide and/or a parameter causing such deformation, which method comprises: measuring the change in the mode band edge critical wavelength of the first, second or higher mode of the radiant energy throughput of the wave guide as a function of the deformation of the wave guide.
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Crowley Richard P.
Lee John D.
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