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本文就自行研制的分段式板形检测仪的工作原理、特点及二次仪表的实现做了详细介绍。该检测仪采用压磁、后阻传感器并用的方法，以适应我国普通轧机所轧带材厚度范围大的特点。二次仪表采用独特的相敏检波及正负峰值锁存的通道处理过程，使计算机采样大为简化。该检测仪板形显示明了、直观。
This article made a detailed introduction to the working principle, characteristics and the realization of secondary instrument developed by ourselves. The detector uses the pressure magnetic, after the resistance sensor and the method used to adapt to China’s ordinary rolling mill rolled strip thickness range characteristics. Secondary instrument uses a unique phase sensitive detection and positive and negative peak latch channel processing, the computer sample is greatly simplified. The detector showed a clear shape, intuitive.