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    • 10. 发明申请
    • DYNAMIC RAIL LONGITUDINAL STRESS MEASURING SYSTEM
    • 动态轨道纵向应变测量系统
    • WO1994020847A1
    • 1994-09-15
    • PCT/US1994002165
    • 1994-03-01
    • HERZOG CONTRACTING CORP.
    • HERZOG CONTRACTING CORP.SEARLE, Donald, S.
    • G01N29/18
    • G01N29/043G01L1/255G01N29/0618G01N29/07G01N29/11G01N29/2412G01N29/2468G01N29/2493G01N29/30G01N29/326G01N29/46G01N2291/02827G01N2291/02854G01N2291/0422G01N2291/044G01N2291/103G01N2291/262G01N2291/2623
    • A system and method for dynamically and non-destructively measuring the longitudinal stresses in a rail section (67) of a continuous rail track (7) includes an ultrasonic transmitter (3) which transmits a signature coded pulse (5) pattern through a rail section (67). The rail section (67) alters the pulse pattern (5) dependent upon the longitudinal stress within the rail. The altered pulse pattern is then received by a receiver (9) and passed to a processor (11), which, in conjunction with signals from a rail height detector (83), a rail temperature detector (91), and a rail splice detector (73), dynamically determines the longitudinal stresses in the rail section (67) as a function of the received pulse characteristics and calculates a stress free temperature (SFT) of the rail (7). A rail marker (97) marks sections (67) of the rail (7) having unacceptable SFT values. Stress and related rail data are recorded on a data log (95). A position sensor provides milepost positions to three decimal places.
    • 一种用于动态地且非破坏性地测量连续轨道(7)的轨道部分(67)中的纵向应力的系统和方法包括:超声波发射器(3),其通过轨道部分(3)传输签名编码脉冲(5) (67)。 导轨部分(67)根据轨道内的纵向应力改变脉冲模式(5)。 改变的脉冲模式然后由接收器(9)接收并传递到处理器(11),其结合来自轨道高度检测器(83)的信号,轨道温度检测器(91)和轨道接合检测器 (73)根据接收的脉冲特性动态地确定轨道部分(67)中的纵向应力,并计算轨道(7)的无应力温度(SFT)。 轨道标记(97)标记轨道(7)的具有不可接受的SFT值的部分(67)。 应力和相关轨道数据记录在数据日志(95)上。 位置传感器提供三位小数位置的里程碑位置。