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1. 发明申请

WO1996018866A1 A METHOD AND DEVICE FOR CONTINUOUS MONITORING OF DYNAMIC LOADS 审中-公开
标题翻译：用于连续监测动态负载的方法和装置
公开(公告)号：WO1996018866A1
公开(公告)日：1996-06-20
申请号：PCT/NO1995000234
申请日：1995-12-15
申请人： SAFETY-ONE A/S , SANNERHAUGEN, Vidar , HELLVIK, Sten
发明人： SAFETY-ONE A/S
IPC分类号： G01B11/16
CPC分类号： G01M11/086 , G01B11/18 , G01D5/35383 , G01L1/242 , G01L1/243 , G01L1/245 , G01L1/246 , G01L1/247
摘要： For continuous monitoring of dynamic loads, including stresses and strains in large hull structures for vessels (5), a strain measurement system (2) is employed with fibre optic cables which connect optical strain sensors (7; 16) at different points in the hull structure. Optical signals for detection of stresses and strains are distributed to the strain sensors (7; 16) from an optical transmitter (11). The strain measurement system (2) is connected via a central monitoring unit (10) to a computer-implemented control system (1) which in turn is connected to a display and data presentation unit (4) and possibly other measurement systems (3). In a first operating mode in this method strain values during loading and unloading of the vessel (5) are detected by means of the strain sensors (7; 16). By means of the control system (1) a curve is generated which shows an average strain, and an alarm signal if the average strain exceeds a predetermined threshold which indicates an unacceptable level of strain. In a second operating mode when the vessel (5) is underway, strains are continuously detected by means of the strain sensors (7; 16). An alarm signal is generated if the average strain exceeds a predetermined threshold which indicates an unacceptable level of strain. A strain measurement system and a fibre optic strain sensor (16) for use with this method are also described.
摘要翻译：对于动态载荷的连续监测，包括船体大型船体结构中的应力和应变（5），使用应变测量系统（2），光缆在光缆的不同点连接光学应变传感器（7; 16）结构体。用于检测应力和应变的光信号从光发射器（11）分配到应变传感器（7; 16）。应变测量系统（2）经由中央监控单元（10）连接到计算机实现的控制系统（1），该控制系统又连接到显示器和数据呈现单元（4）以及可能的其他测量系统（3）。在该方法的第一操作模式中，通过应变传感器（7; 16）检测容器（5）的装载和卸载期间的应变值。通过控制系统（1），产生显示平均应变的曲线，如果平均应变超过表示不可接受的应变水平的预定阈值，则产生报警信号。在容器（5）正在进行的第二操作模式中，通过应变传感器（7; 16）连续地检测应变。如果平均应变超过指示不可接受的应变水平的预定阈值，则产生报警信号。还描述了与该方法一起使用的应变测量系统和光纤应变传感器（16）。

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