通用钻井深度系统

用单片机和微机共同构成的通用钻井深度系统由硬件和软件组成。文章具体分析了以８７５１单片机为核心的钻井深度系统采集单元的原理电路和主要程序框图，讨论了以大钩高度和大钩负荷参数的计算依据的钻井深度计算原理，程序状态图。该系统设计简单，具有自校对井的功能，单根误差小于５ｃｍ，有很强的通用性。

General Drilling Depth System

The general drilling depth system is composed of a single-chip microcomputer,a personal computer,hardware and software. This articie presents analysing in detail the curcuit principle and the main program routines of the data acquisition unit of the drilling depth system which is centered by a 8751 microcomputer,discusses the drilling depth calcuiation principle and the program structure based on the hook's height and load characteristics. The design of the system is simple and with a functlon of autocorrection of well depth as with a depth error of less 5 cm. The system has been widely used in depth measurement.