AN INTEGRATED SYSTEM AND METHOD FOR MEASURING DEFORMATIONS AND/OR STRESSES IN ONE-DIMENSIONAL ELEMENTS
First Claim
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1. Integrated measuring system (9), comprising:
- a structural element (10), adapted to be incorporated in a building construction and elongated in a longitudinal direction, said structural element (10) having an internal cavity (14) hermetically closed or closable by means of closure means (20), said internal cavity (14) being filled with a compressible fluid (16);
a measurement system (12), adapted to measure deformations and/or stresses on the structural element (10) along said longitudinal direction, the system comprising a pressure measuring device (18) in contact with the fluid in the internal cavity (14), said measurement system (12) further comprising a device for measuring the temperature of the fluid (16) and/or the temperature of the inner wall of the cavity (14), in such a way that the system is able to determine a volume variation of the cavity (14) by measuring a pressure and temperature variation of the fluid resulting from an action (F) imparted to the structural element (10),wherein the cavity (14) extends along a direction substantially perpendicular with respect to said longitudinal direction.
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Abstract
An integrated measuring system (9) comprises a structural element (10) for building constructions, having an internal cavity (14), hermetically closed to contain a compressible fluid (16), and a measuring system (12) for measuring stresses and/or deformations on the structural element (10), measuring system (12) whereby it is possible to measure the pressure and temperature of the fluid (16) so as to measure a change in fluid pressure and determine a variation of the volume of the cavity (14) resulting from an action (F) imparted to the structural element (10).
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Citations
15 Claims
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1. Integrated measuring system (9), comprising:
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a structural element (10), adapted to be incorporated in a building construction and elongated in a longitudinal direction, said structural element (10) having an internal cavity (14) hermetically closed or closable by means of closure means (20), said internal cavity (14) being filled with a compressible fluid (16); a measurement system (12), adapted to measure deformations and/or stresses on the structural element (10) along said longitudinal direction, the system comprising a pressure measuring device (18) in contact with the fluid in the internal cavity (14), said measurement system (12) further comprising a device for measuring the temperature of the fluid (16) and/or the temperature of the inner wall of the cavity (14), in such a way that the system is able to determine a volume variation of the cavity (14) by measuring a pressure and temperature variation of the fluid resulting from an action (F) imparted to the structural element (10), wherein the cavity (14) extends along a direction substantially perpendicular with respect to said longitudinal direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 15)
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9. Method for measuring deformations and/or stresses along a longitudinal direction of a structural element (10) elongated in the longitudinal direction, said structural element (10) being adapted to be incorporated in a building construction and being subjectable to an action F, the method comprising the steps of:
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a) providing at least one cavity (14) internal to the structural element (10), oriented in a direction substantially perpendicular with respect to a central longitudinal axis (11) of the structural element (10); b) filling the cavity (14) with a compressible fluid (16) and sealing the cavity (14) by means of closing means (20); c) associating a measurement system (12) to the cavity (14), said measuring system (12) comprising a measuring device (18) of the pressure of the fluid (16), and a device for measuring the temperature of the fluid (16) and/or the temperature of the inner wall of the cavity (14); d) measuring the pressure and temperature variations of the fluid (16), determining a variation of volume of the cavity (14), and establishing a relationship between said volume variation and a longitudinal deformation of the structural element (10). - View Dependent Claims (10, 11, 12, 13, 14)
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Specification