Patent ID: 8474333
Filing Date: 2013-07-02
Classification: G01L

Abstract:
1. An industrial roll, comprising: a roll core having a cylindrical section with a substantially cylindrical geometry; a roll cover sheathing said cylindrical section of said roll core at least partly; and at least one fiber optical sensor at least one of embedded in said roll cover and located between said roll cover and said roll core, said at least one fiber optical sensor including at least one measuring section that is formed by a transverse force transducing fiber Bragg sensor, said transverse force transducing fiber Bragg sensor including a fiber optical waveguide and a stud element, said fiber optical waveguide including a fiber core, a fiber cladding, a Bragg grating located in said fiber core, a first section which houses said Bragg grating, a longitudinal direction, and a circumferential surface including a partial area, said Bragg grating including a grating spacing, said stud element including a first component and being nonpositively joined to said partial area of said circumferential surface of said fiber optical waveguide, a dimension of said partial area in said longitudinal direction of said fiber optical waveguide being longer than said grating spacing of said Bragg grating, said partial area being located at said section of said fiber optical waveguide which houses said Bragg grating, at least said first component of said stud element being formed from a first material having a Young's modulus of less than 10 kN/mm