Patent ID: 6813013
Filing Date: 2004-11-02
Classification: G01D,G01K

Abstract:
A pressure-isolated temperature sensor assembly, comprising:a temperature sensing element, comprising: at least a portion of one or more optical waveguides containing at least one wavelength tunable grating formed therein; ant a first tube encasing one or more of the wavelength tunable gratings; and a pressure isolating means, comprising: a second tube with an inner surface contacting an outer surface of the first tube at a first axial location so as to seal the second tube at the first axial location, wherein: the first tube extends axially from, the first axial location to a second axial location; the first tube is not in contact with the second tube between the first axial location and the second axial location; and the second tube is sealed at a third axial location, wherein the second axial location is located between the first axial location and the third axial location.