Back to results
US 2010/0300209 A1Published application
Optical strain gauge
AssigneeHottinger Baldwin Messtechnik GmbH
InventorsManfred Kreuzer, Tobias Kipp, Thomas Kleckers
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeHottinger Baldwin Messtechnik GmbH
InventorsManfred Kreuzer, Tobias Kipp, Thomas Kleckers
Estimating the term…
The invention relates to a strain gauge, comprising at least one optical waveguide (5) fastened to a thin support (1). The optical waveguide (5) has at least one section (10) with a fiber Bragg grating (6), which serves the detection of strain. The invention is characterized in that the optical waveguide (5) outside of the fiber Bragg grating section (10) is covered on both sides of said section by two fastening elements (3, 4). In this way, the optical waveguide (5) outside of the fiber Bragg grating section (10) is fastened to the support (1) with force fit. Between the two lateral fastening elements (3, 4), a relatively soft elastic fixing element (2) is fastened around the optical waveguide (2), the element fixing at least the fiber Bragg grating section (10) with positive fit to the support (1).
Optical strain gauge, which includes at least one optical waveguide (5), which is secured on a thin bottom support (1) and which comprises at least one section (10) with a fiber Bragg grating (6) for the detection of a strain, characterized in that the optical waveguide (5) outside of the fiber Bragg grating section (10) on both sides thereof is covered by two fastening elements (3, 4), by which the optical waveguide (5) is secured in a force-transmitting manner on its bottom support (1), and in that the optical waveguide (5) between the lateral fastening elements (3, 4) is surrounded by a relatively soft elastic fixing element (2), which fixes at least the Bragg grating section (10) in a form-fitting manner on its bottom support (1).
3-12. (canceled)
Dependencies are inferred from the claim text.