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在能源计量数据采集系统管理中使用衡器可实现原材料进出料称重,但原材料进出料称重时,如果采用模拟传感器接线盒,称重传感器与计量显示仪表都存在长距离传输,且大多数衡器的安装现场条件比较苛刻等诸多问题。为了适应能源计量管理,针对现场条件差、信号传输距离远的特点,我们采用数字接线盒的方式,将模拟信号转换成数字信号,实现了数字角差调整与数字信号输出。一、数字接线盒工作原理每个称重传感器独立供电,采用独立A/D转换、独
In the energy metering data acquisition system management using weighing instrument can realize raw material weighing, but the raw materials out of material weighing, if the use of analog sensor junction box, weighing sensor and meter display instruments are long distance transmission, and most of the weighing instrument The installation site conditions are harsh and many other issues. In order to adapt to the energy measurement management, in view of the poor site conditions, the signal transmission distance characteristics, we use the way of digital junction box, the analog signal into a digital signal, to achieve a digital angle adjustment and digital signal output. First, the digital junction box works Each load cell independent power supply, using independent A / D conversion, alone