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该系统是英国霍克西德利动力工程公司研制的,安装在西尔费德尔煤矿罐笼井试用,于1980年3月进行了鉴定。该系统主要由传感原件、电子元件和控制显示屏等三个部分组成。传感元件是用来确定罐笼的提升速度及其距离的,并能提供有关井筒的数据。传感元件由一个光轴编码器、两个基准开关和一个人/煤开关组成。光轴编码器由电子元件驱动,由于其结构为全封闭型。所以不必维修。光轴编码器的光源是一个红外光发光二极管。该元件在两次输出间,能发出1000次/转的脉冲。基准开关是一个磁性传感器,它由提升钢丝绳上的磁化点感应而动作。基准开关的动作分别由各自的罐笼控
The system was developed by Hawkesdale Power Engineering Co., Ltd., UK, and installed in the well test cage of Silversdale Coal Mine. It was appraised in March 1980. The system consists of sensing the original, electronic components and control of the display and other three components. The sensing element is used to determine the lift speed and distance of the cage and provide data on the wellbore. The sensing element consists of an optical axis encoder, two reference switches and a personal / coal switch. Optical axis encoder driven by electronic components, due to its structure is fully enclosed. So do not have to repair. The light source of the optical axis encoder is an infrared light-emitting diode. The element can output 1000 pulses per revolution between outputs. The reference switch is a magnetic sensor that operates by sensing the magnetization point on the hoisting ropes. The movement of the reference switch is controlled by the respective cage