Handheld Wheel Flaw Detection Device: Noncontact Electronic Wheel Gauge (NEWG).

摘要

International Electronic Machines (IEM) proposed the development of a handheld, self-contained Noncontact Electronic Wheel Gauge (NEWG) to address limitations in current-art methods for measuring and tracking relevant aspects of transit wheels. Stage 1 demonstrated the feasibility of this approach, and IEM proceeded to Stage 2. During Stage 2, IEM built upon the specifications and concepts determined in Stage 1 and produced a complete prototype design for the NEWG. During the same period, IEM also modeled and tested the algorithms and software needed for calibration, data acquisition, and processing. IEM then constructed a prototype and tested it, refining physical designs, producing methods for proper use and pose feedback, creating a custom multiplexer for data acquisition, and determining control and user interface design. IEM presented the results of the Stage 2 work to the Transportation Research Board (TRB) at a Washington meeting. Overall, the Stage 2 work was successful and the NEWG is clearly both technologically practical and needed by the industry. IEM identified specific aspects of the gauge, including dealing with specular reflections, calibration/measurement accuracy improvement, and verification of diameter measurement that would be important development aspects in the final design.