Patent ID: 8561468

Claim:
A diagnostic system for monitoring a scanning system that detects characteristics of a sheet of material during linear translation along a translation axis of a bi-directionally driven mobile detector device, the diagnostic system comprising: (a) the scanning system being monitored which comprises: (i) a first elongated member that extends along a first direction wherein the first elongated member supports a first carriage that is mounted thereon; (ii) means for driving the first mounted carriage, that supports a first sensor head, along a main scanning direction; (iii) a second elongated member that extends along a second direction that is parallel to the first direction wherein the second elongated member supports a second carriage that is mounted thereon; and (iv) means for driving the second carriage, that supports a second sensor head, characterized in that the scanning system includes a common drive mechanism comprising a single motor that moves both the first carriage and the second carriage; (b) a vibration sensor configured to measure vibrations generated by one or more components of the scanning system and generating vibration signals indicative of operation conditions of the one or more components; and (c) means for correlating the vibration signals to modes of operations of the one or more components of the scanning system.