Patent ID: 9476294
Filing Date: 2016-10-25
CPC Classification: E21B,G01L

Claim Text:
1. An apparatus for estimating at least one parameter, comprising: a transducer configured to measure the at least one parameter, the at least one parameter including a parameter of a fluid, the transducer including: a deformable elongated member configured to deform in response to the parameter of the fluid, the parameter of the fluid including a force exerted on the elongated member due to the fluid; a housing surrounding a portion of a surface of the elongated member to define an isolated region bounded by the portion and the housing, and to define an isolated surface of the elongated member, the housing configured to exclude the fluid from the isolated region and the isolated surface to cause the isolated region and the isolated surface to be isolated from the fluid and from the parameter of the fluid to be estimated; an exposed portion of the surface of the elongated member configured to be exposed to the fluid and the parameter of the fluid; and at least one optical fiber sensor including an optical fiber disposed on the elongated member, the optical fiber having a first fiber portion and a second fiber portion, the first fiber portion disposed on the isolated surface and held in an operable relationship with the isolated surface, the first fiber portion configured to generate a first signal in response to a deformation of the elongated member due to the parameter of the fluid, the second fiber portion disposed on the elongated member and configured to generate a second signal indicative of a temperature, the second fiber portion oriented relative to a major axis of the elongated member such that the second fiber portion is insensitive to the deformation of the elongated member due to the parameter of the fluid.