Abstract: An apparatus measures displacement of a structure having a curved surface, such as a pipe, conduit, shaft or rod. The apparatus includes a support structure having opposing first and second ends, with a first laser distance measurement device at the first end and a second laser distance measurement device at the second end. The laser distance measurement devices generate dual laser beams that illuminate the curved surface of the structure, detect laser energy reflected from the curved surface of the structure, and generate distance signals based on the detected laser energy. A measurement device on the support structure measures a spacing between the two laser beams. The support structure is pivotally attached to a stabilizing base, thereby providing for the tilting of the support structure and the laser beams. An inclinometer on the support structure measures an angle of tilt.

Abstract: A computer-controlled system automatically measures and records various physical characteristics of an elongated shaft or tube, such as a golf club shaft or other structural member. The characteristics measured include the principal planar oscillation plane, oscillation frequency, stiffness asymmetry, relative stiffness, torsional stiffness, shaft length, shaft straightness and tip angle.

Abstract: A computer-controlled system automatically measures and records various physical characteristics of an elongated shaft or tube, such as a golf club shaft or other structural member. The characteristics measured include the principal planar oscillation plane, oscillation frequency, stiffness asymmetry, relative stiffness, torsional stiffness, shaft length, shaft straightness and tip angle.

Abstract: An apparatus measures displacement of a structure having a curved surface, such as a pipe, conduit, shaft or rod. The apparatus includes a support structure having opposing first and second ends, with a first laser distance measurement device at the first end and a second laser distance measurement device at the second end. The laser distance measurement devices generate dual laser beams that illuminate the curved surface of the structure, detect laser energy reflected from the curved surface of the structure, and generate distance signals based on the detected laser energy. A measurement device on the support structure measures a spacing between the two laser beams. The support structure is pivotally attached to a stabilizing base, thereby providing for the tilting of the support structure and the laser beams. An inclinometer on the support structure measures an angle of tilt.