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    • 7. 发明授权
    • Bore-insertable apparatus for stationary measurement of bore-width
changes in geological formations
    • 用于固定测量地质构造孔径变化的可钻孔装置
    • US4574485A
    • 1986-03-11
    • US691458
    • 1985-01-14
    • Ferdinand KreutzJurgen KeckJohann Bolingen
    • Ferdinand KreutzJurgen KeckJohann Bolingen
    • E21B47/08G01B5/12G01B7/02
    • E21B47/08G01B5/12
    • A measuring device for long-term installation in a bore in a rock formationor detecting gradual changes in bore diameter, especially gradual constriction which might affect the condition of radioactive waste deposited in the bore, utilizes telescoping parts under outward spring pressure. One of the two elements of the transducer which by the relative displacement of these elements measures changes in diameter, is a rod held in a friction mounting on one of the telescoping parts that maintains the position of the device in the bore. The other element of the transducer is fixed on the other telescoping part which also carries limit stops (7,8) which in corporation with a stop (6) on the rod confines the lengthwise movement of the rod to a stroke equal to the maximum measuring range of the transducer. For measuring gradual constriction, the transducer is automatically set to begin with the maximum measureable diameter. Remote control setting of the initial position of the rod is necessary if both enlargement and constriction with time are to be measured.
    • 用于长期安装在岩层孔中的测量装置,用于检测钻孔直径的逐渐变化,特别是可能影响沉积在孔中的放射性废物的状况的逐渐收缩,在外部弹簧压力下使用伸缩部件。 通过这些元件的相对位移测量的换能器的两个元件中的一个是直径的变化,是保持在一个伸缩部件上的摩擦安装件中的杆,其保持装置在孔中的位置。 换能器的另一个元件固定在另一个伸缩部件上,该伸缩部件还带有限制止动件(7,8),该限位止动件(7,8)与杆上的止动件(6)相结合将杆的纵向运动限制在等于最大测量值的行程 传感器的范围。 为了测量逐渐收缩,传感器自动设置为以最大可测量直径开始。 如果要测量放大和收缩时间,则杆的初始位置的遥控设置是必要的。