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- This paper presents a signal de-noising method using wavelet analysis in stress wave detection. 介绍了一种适合于管道应力波检测的基于小波变换的去噪方法。
- stress wave detection 应力波检测
- The position where stealing happened is derived by calculating the difference between the times at which the stress wave reaches the two adjacent detection transducers. 在盗油实时监测时,利用冲击激励产生的应力波到达两个检测传感器的波达时刻的差对冲击激励点进行定位。
- Research shows that stress wave reflection method can not only detect the anchoring position and anchoring length, but also indirectly detect the bolt anchoring force through anchor wave velocity. 研究结果表明,应力波反射法不仅可以检测锚杆的锚固位置和锚固长度,而且能由锚固体波速间接检测锚杆的锚固力大小。
- The technology of stress wave nondestructive testing(NDT) can be used to detect size,specification,and basic physical property of wood on the premise of nondestructive performance. 应力波木材无损检测技术可在不破坏木材使用性能的前提下,快速的检测出木材的尺寸、规格和基本物理性质等,基于此优点,应力波无损检测技术近几年越来越受到青睐。
- The paper analyses the stress wave propagating in a variable section bar using HONDO finite element computer program . 利用HONDO有限元程序对应力波在变截面杆中的传播进行了分析。
- This paper introduces a practical and real -time R wave detection algorithm as well as its realization and adjustment by DSP/BIOS of RTOS. 介绍了一种心电信号R波快速检测算法在实时操作系统DSP/BIOS中的实现过程和调试评测方法。
- Acoustic emission (AE) is stress wave produced when the materials are distorted, or under the outside load. 众所周知,声发射(AE)是材料在受到形变或外力作用时,迅速释放能量而产生的瞬态应力波,是进行结构诊断的重要依据。
- This paper introduces a practical and real-Lime R wave detection algorithm as well as its realization and adjustment by DSP/BIOS of RTOS. 摘要介绍了一种心电信号R波快速检测算法在实时操作系统DSP/BIOS中的实现过程和调试评测方法。
- The mechanism of spallation is analyzed as a result of the interaction of the unloading wave and reflected stress wave. 分析了层裂机制,得出靶材是在卸载波及被反射的压力波的共同作用下发生层裂;
- The paper analyzes the reasons for emulsion explosive's passivation by the action of blasting stress wave. 文中分析了爆炸应力波作用致使乳化炸药钝化的原因。
- Most of the new gravitational wave detection projects are using laser interferometers instead of resonant mass detectors because they are more sensitive. 大多数引力波探测项目都是使用更为灵敏的激光干涉计探测仪而不是共振质量探测仪。
- It is shown that the irregularity of the joint surface apparently affects the stress wave transmission. 研究结果表明:节理面不规则结构明显地影响应力波的传播性质。
- Rayleigh wave detection as a shallow seismic detection method, characterized by advantenges of being simple and convenient, has been applied in many fields. 摘要瑞利波可对煤矿井下进行全方位探测,具有简便、快速、应用范围广的优点。
- The interreaction between the weight hammer and the explosive sample is analysed making use of the stress wave theory. 从刚体动力学观点将这种相互作用简化为二阶系统,可得到一组关于应力、应力率和应力脉冲宽度的表达式。
- Structures, cutting mechanism and stress wave theory of the tunneller a re presented and analyzed. 文章对这种掘进机的结构、截割机理及应力波理论进行了介绍和分析。
- The conclusion is valuable for liquid surface wave detecting and application. 这一结果对液体表面波的检测和应用是有价值的。
- The process problems of composite structures using interference fit technology can be solved by use of Stress Wave Riveting (SWR). 分析了复合材料结构采用干涉配合技术存在的工艺困难,利用应力波铆接设备对碳纤维复合材料进行了干涉配合铆接试验,并对铆接质量进行了检测分析。
- It is the macro effect of accumulative micro fracture in all period of time that spallation failure is induced by reflection of stress wave emerges. 应力波反射诱发层裂过程的发生,是各个时刻不同加载条件下微破裂累积的宏观体现。
- A profound development in gravitational waves detection came in 1974 with the discovery by Hulse and Taylor of a binary pulsar. 我们期刊在处理涉嫌违规的稿件的时候,第一个最重要的原则就是尽量不让任何有问题的稿件发表出来。