Patent ID: 6587188
Filing Date: 2003-07-01
Classification: G01K,G01L,G01M

Abstract:
A sensor arrangement for determining a temperature and a strain, comprising:a substrate having a substrate surface; an optical sensor arranged directly or indirectly on said substrate surface, wherein said optical sensor comprises at least one optical fiber including a fiber core and a fiber cladding, and a Bragg grating formed in a sensor section of said optical fiber; and a cover layer applied onto said substrate and said optical fiber such that said optical fiber is embedded in and at least partially surrounded by said cover layer and secured thereby onto said substrate, and such that a force-transmitting connection is established between said substrate, said cover layer and said optical fiber; and wherein said optical sensor is birefringent due to a non-circularly-symmetrical thermomechanical strain that has been transmitted and induced from said cover layer into said optical fiber.