| 摘要 |
A prompter/monitor system for use in combination with wide-belt abrasive surface treating apparatus and including an array of individual axially spaced apart signal generating workpiece sensors operatively positioned across the width of the belt with each sensor creating a signal in response to the presence of a workpiece moving along a segment or lane of the width of the belt. Readout means are provided for receiving signals from each of the sensors, with the readout means including a display responsive to a selected one of the workpiece sensors. A data processor is coupled to the readout for determining the accumulative duration of time during which a workpiece is detected by each sensor, and also determining that certain sensor which has detected the least duration of workpiece presence which becomes the reference for all others. Using that reference lane, the total amount of time for which workpieces are detected for each of the other individual sensors are compared to the reference, and the display is actuated to represent those lanes or width segments which are being under or over utilized.
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