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    • 5. 发明申请
    • STRESS/EXTENSION-MEASURING SENSOR AND METHOD FOR MEASURING STRESS/EXPANSION
    • 电压/应变测量传感器和方法对于电压/应变测试。
    • WO2004020962B1
    • 2004-05-06
    • PCT/DE0302648
    • 2003-08-05
    • EADS DEUTSCHLAND GMBHZIMMERMANN WERNERJAENKER PETER
    • ZIMMERMANN WERNERJAENKER PETER
    • G01L1/14G01L5/24
    • G01L1/14G01L5/24
    • The invention relates to a stress/extension measuring sensor for continuously monitoring states of stress/extension, particularly in screwed bolts, and a corresponding method. The aim of the invention is to create an arrangement and a corresponding method which is/are easy and uncomplicated to use and allows states of stress/extension to be continuously monitored. Said aim is achieved by the inventive sensor (1) which is provided with a first inductor (3) and at least one additional element (2) comprising at least one pressure-dependent first impedance (5) or a second impedance (5') and a second inductor (3'). The second impedance (5') and/or the second inductor (3') are pressure-dependent such that the resonance frequency of an electromagnetic oscillating circuit which is formed by the impedance (5; 5') and inductor (3; 3') changes when the pressure, by means of which the element (2) is impinged upon, changes.
    • 本发明涉及一种用于在拧紧螺栓insbesonclere连续监测应力/应变状态,以及相应的方法的应力/应变测量传感器。 任务在此情况下是一个装置和相应的方法,以提供,或车辆,其是简单和不复杂的使用,并允许的应力/应变的条件连续监测。 根据本发明,这是实现在(1)提供了一种传感器,其具有一个第一电感(3)和至少一个其它元件(2)具有至少一个与压力相关的第一阻抗(5)或第二阻抗(5“)和 第二电感器(3“),其中所述第二阻抗(5”)和/或所述第二电感器(3“)被druckabhägig改变元件的压力时,例如类(2),通过阻抗(5的共振频率; 由电磁振荡电路(3,5形成); 5 '3)和电感(3'; 3”,5' )的变化。