传感条包含了一组传感器阵列，跨越扫描头的整个宽度。
The Sensor Bar contains an array of sensors across the full width of the scanning head.
但这时扫描头的传动电机并没有停，所以发出异常响声。
However, when the first scan of the drive motor does not stop, so the issue of abnormal sound .
论述了光电扫描头的工作原理，性能特征以及设计中的技术关键。
Operating principle, characteristics and technical key of photoelectric scanning head are described.
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