True cross-directional web scanning apparatus

Abstract

The apparatus and method guides a web of material to move in a first direction and a second direction. Sensor signals are transmitted from a source module slidably attached to a first rail and located at an angle to and between the web of material moving in the first direction and the second direction. First and second receiver modules are each slidably attached to second and third rails positioned in alignment with the first rail. The sensor module cooperates with the first receiver module to slidably travel along the first and second rails to capture measurements associated with the web of material in the first direction and the sensor module cooperates with the second receiver module to slidably travel along the first and third rails to capture measurements associated with the web of material in the second direction.

Dependencies are inferred from the claim text.