Highly accurate weighing system
    1.
    发明授权
    Highly accurate weighing system 失效
    高精度称重系统

    公开(公告)号:US4967384A

    公开(公告)日:1990-10-30

    申请号:US167528

    申请日:1988-03-14

    IPC分类号: G01G19/07 G01G23/37

    CPC分类号: G01G19/07 G01G23/3707

    摘要: A microprocessor-based system (18) for weighing large objects, such as aircraft, at a number of points is disclosed. A plurality of load sensing units (10) each contain a strain gauges (50), analog amplification and calibration circuits (54), filtering circuits (56, 58), and analog-to-digital conversion circuitry (60). Each of the load sensing units (10) couple through serial data communication channels (14) to a controller (12), which contains a microprocessor (20), a keyboard (46), and a display (36). A microprocessor (20) executes a program which monitors all load sensing units (10), calculates weight based on data obtained from the load sensing units (10) and several compensation factors, and displays weight of a selected load sensing unit (10). Various foreground (200) and keyboard service (300) software routines are discussed.

    摘要翻译: 公开了一种基于微处理器的系统(18),其用于在多个点处称重诸如飞机的大型物体。 多个负载感测单元(10)各自包含应变仪(50),模拟放大和校准电路(54),滤波电路(56,58)和模数转换电路(60)。 每个负载感测单元(10)通过串行数据通信信道(14)耦合到包含微处理器(20),键盘(46)和显示器(36)的控制器(12)。 微处理器(20)执行监视所有负载感测单元(10)的程序,基于从负载感测单元(10)获得的数据和多个补偿因子来计算权重,并显示所选择的负载感测单元(10)的权重。 讨论了各种前台(200)和键盘服务(​​300)软件程序。