Method and apparatus for producing a prestressed fiber-optic sen

Details Method and apparatus for producing a prestressed fiber-optic sen Method and apparatus for producing a prestressed fiber-optic sen

1993-01-28

1994-06-14

Bovernick, Rodney B.

Optical waveguides

Optical waveguide sensor

Including physical deformation or movement of waveguide

385 12, G02B 600

Patent

active

053217780

ABSTRACT:
A method for producing a prestressed fiber-optic sensor of two superposed metal strips (2,3) sheathing an optical fiber (1) with the strips being secured to each other along their lateral sides to provide a sheath exerting a prestress on the optical fiber includes a first step of superposing the lateral sides of the strips and aligning the edges of the strips. The superposition of the sides is carried out so as to produce a desired prestress on the optical fiber after the sides have been secured together. In a further step, the strips are continuously welded to each other to unite the adjacent edges after superposition of their lateral sides. The welding is performed simultaneously along both sides of the strips and with the same input of energy. The invention also relates to apparatus for carrying out the method and a prestressed fiber-optic sensor produced thereby.

REFERENCES:
patent: 4750796 (1988-06-01), Shibata et al.
patent: 5028141 (1991-06-01), Griffiths
patent: 5193129 (1993-03-01), Kramer

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