A method for obtaining a measurement in an in-line system for detecting presence of an out-of-parameter part is provided. The method includes conveying a tubular member to a detection system comprising a laser sensor arranged and configured to direct a beam of light onto an upper end surface of the tubular member for obtaining a measurement. The laser sensor is offset from a center of the tubular member such that the beam of light is directed onto an outer side of the upper end surface. The beam of light is directed onto the upper end surface at the outer side of the tubular member and the beam of light moves from a front quadrant of the upper end surface to a rearward quadrant of the upper end surface.