Patent ID: 8842269

Claim:
A sensor for measurement of deflection and/or bending moment in an object to which it is attached, said sensor comprising: a receptacle body, the receptacle body further comprising a compact solid form defining three cavities, each one of the three cavities to house a laser where a beam of the laser is projected along 2D- and 3D-axes of the object to which it is attached and electrical wires to supply electricity to the lasers, the receptacle body implementing a vacuum system of attachment, wherein the receptacle body comprises a first side, a second side, a circumferential edge, and having a y-axis, an x-axis, and a z-axis; one of the three cavities being a first cavity having a bottom surface and axially centered on the y-axis; one of the three cavities being a second cavity having a bottom surface and axially centered on the x-axis; a first passageway defined by the receptacle body, the first passageway axially centered on the y-axis and extendin from the bottom surface of the first cavity to a z-axis of the receptacle body; a second passageway defined by the receptacle body, the second passageway axially centered on the x-axis and extending from the bottom surface of the second cavity to a z-axis of the receptacle body; a third passageway defined by the receptacle body, the third passageway axially centered on the z-axis and extending from the first side so that the third passageway fluidly connects the third passageway, the second passageway and the first passageway at the z-axis; a first laser disposed in the first cavity, the first laser comprised of a top end and a bottom end, the top end substantially even with the circumferential edge and the bottom end adjacent the bottom surface of the first cavity; a second laser disposed in the second cavity, the second laser comprised of a top end and a bottom end, the top end substantially even with the circumferential edge and the bottom end adjacent the bottom surface of the second cavity; and wherein the electrical wires connect to the first laser and the second laser, the electrical wires traversing the first passageway and the second passageway and exiting the housing via the third passageway.