会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明申请
    • A METHOD AND DEVICE FOR CONTINUOUS MONITORING OF DYNAMIC LOADS
    • 用于连续监测动态负载的方法和装置
    • WO1996018866A1
    • 1996-06-20
    • PCT/NO1995000234
    • 1995-12-15
    • SAFETY-ONE A/SSANNERHAUGEN, VidarHELLVIK, Sten
    • SAFETY-ONE A/S
    • G01B11/16
    • G01M11/086G01B11/18G01D5/35383G01L1/242G01L1/243G01L1/245G01L1/246G01L1/247
    • 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.
    • 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)。
    • 9. 发明申请
    • STRAIN GAUGE
    • 应变计
    • WO1997015805A1
    • 1997-05-01
    • PCT/GB1996002606
    • 1996-10-24
    • BICC PUBLIC LIMITED COMPANYHAIGH, Neil, RichardROWLAND, Simon, MarkLINTON, Richard, Stephen
    • BICC PUBLIC LIMITED COMPANY
    • G01B11/16
    • G01L1/246G01B11/18G01L1/243G01L1/245
    • An optical fibre strain gauge (1) for an engineering structure e.g. a bridge, building, pipe, plant or the like, comprises: (a) a plurality of supports (8, 10) for the optical fibre that can be located on a surface of the structure and are spaced apart from one another over a part of the surface; and (b) at least one optical fibre (12) that is looped around the supports so that it extends between the supports, the optical fibre being fixed to the supports so that the length of the part of the fibre extending between the supports will vary in accordance with strain of the surface of the structure. The optical fibre(s) (12) can be looped around the supports (8, 10) a number of times, which enables the fibre(s) to be held more easily, and enables the strain gauge to incorporate a length of fibre significantly greater than the dimension of the area of the structure that is being monitored. The fibre(s) will normally contain reflectors such as Bragg gratings to enable signals to be monitored.
    • 一种用于工程结构的光纤应变计(1),例如 桥梁,建筑物,管道,植物等,包括:(a)用于光纤的多个支撑件(8,10),其可以位于所述结构的表面上并且彼此间隔开一部分 的表面; 和(b)围绕所述支撑件环绕的至少一个光纤(12),使得其在所述支撑件之间延伸,所述光纤被固定到所述支撑件,使得在所述支撑件之间延伸的所述纤维的所述部分的长度将变化 根据结构的表面应变。 光纤(12)可以围绕支撑件(8,10)环绕多次,这使得能够更容易地保持纤维,并且使应变计能够显着地结合一定长度的纤维 大于被监测结构区域的尺寸。 光纤通常将包含诸如布拉格光栅之类的反射器,以使信号得以监控。