Patent ID: 8559770
Filing Date: 2013-10-15
Classification: G01D,G01H,G01L,G01P

Abstract:
1. A Fabry-Perot optical sensor for sensing a parameter, the optical sensor comprising: a lead optical fiber having front and rear ends; the front end of the lead optical fiber having a footprint; a spacer carried on the front end of the lead optical fiber and contained within the footprint thereof; the spacer having front and rear margins and a body extending between the front and rear margins; the body having formed in the front margin a Fabry-Perot cavity extending toward the rear margin; the Fabry-Perot cavity having a profile selected from the group consisting of: (a) a semi-circular profile; (b) a parabolic profile; and (c) a truncated parabolic profile; and a diaphragm attached to the front margin of the spacer and extending across the Fabry-Perot cavity; the diaphragm being flexible in response to changes in the parameter; the diaphragm defining a forward reflector of the Fabry-Perot cavity.