用于液态铝合金含氢量现场检测的单片机测控系统

The Single-chip-computer Testing and Controlling System For on-line Testing Hydrogen Content of Molten Aluminum Alloy

液态铝合金含氢量现场检测对于生产高质量铝合金铸件及铸锭具有非常重要的意义。本文介绍一种用于便携式含氢量测定仪的单片机测控系统,重点讨论该系统的单片机扩展单元、信号调理单元、模/数转换单元、真空系统控制单元和系统软件的设计方法。

The on-line testing of hydrogen content in the molten aluminum alloy is very important for producing aluminum alloy castings of high quality. A single-chip-computer testing and controlling system for on - line testing of hydrogen content is introduced and the system expanding unit, the signal modulating unit, A/D converting unit, the vacuum control unit and the design method of the system software are described in detail.