分析了动态应变仪的测量原理和调平衡技术的原理。
It analyses the measuring principle of dynamic strain gauge and introduces the principle of adjusting balance.
研究了一种用光纤光栅测量动态应变的阵列传感技术。
An array sensing technique of fiber grating for the dynamic strain measurement is demonstrated in this paper.
提出了一种通过测量动态应变实现工程中低频振动监测的方法。
A method based on dynamic strain signals for identifying damage of beam structures in time domain is presented.
动态应变是电子束辐照靶结构产生结构响应中的一个重要力学参数。
The dynamic strain is an important mechanic parameter of the structural response produced in the target structure bombarded by electron beam.
桥梁动态应变的远程监测对于确保桥梁安全运行具有十分重要的意义。
The remote monitoring for the dynamic strain of bridge is very important for its safety.
其输出信号可用数字电压表,信号调节器,或动态应变仪接示波器记录。
Its output signal can be displayed by digital voltmeter, signal conditioner or dynamic strain amplifier with recorder.
最后,系统介绍了动态应变仪及计算机数据采集和图形显示系统的工作原理。
Last, this paper explicate systematic dynamic strain gauge some principle about data acquisition and graphics display.
结果显示动态应变呈循环蠕变状态,蠕变的大小、速度与循环应力幅值有关。
The experimental results showed that the dynamic strain has feature of cyclic creep. Cyclic loading affected the creep and creep speed.
从动态应变仪的工作原理出发,研究了动态应变模拟信号的产生方法及其设备。
This paper will research the method and devices of generating dynamic strain simulative signal from the working principle of dynamic strain amplifier.
分析了适用于动态应变测量的光纤光栅传感器所应满足的条件,并进行了相关实验。
Analyzed the conditions applying for the dynamic strain measurement of fiber grating sensor, and did some correlative experiments.
地震破裂动态应变场的计算为将来实现地震动态库仑破裂应力场的计算奠定了基础。
The calculation of the dynamic strain field caused by the seismic rupture lays a foundation for the calculation of seismic dynamic Coulomb failure stress field in the future.
低碳钢的动态应变时效行为是导致其铁素体轧制薄板塑性应变比值较低的主要原因。
The dynamic strain aging of low carbon steel is the main reason of low plastic strain ratios value of the ferrite rolled strip.
分析结果表明,考虑弹簧冲击压缩效应与否,对弹簧固定端动态应变历程有很大影响。
Numcrical calculations show that the impact compression effect of spring is important for dynamic strain of the fixed end.
并对现场埋设的管道进行静、动态应变测试,利用相应的标定方程获得特定点的径向位移。
The static and dynamic strain tests are made for the buried tube at the scene. With the corresponding calibrated equations, the diametric displacements at the particular points are obtained.
测量仪器可用适当精度的通用数字电压表,而标准动态应变的产生则是尚未很好解决的问题。
Measuring apparatus can use general digital voltmeter with appropriate accuracy, but generating standard dynamic strain signal is a problem which hasn't been well solved.
研究动态应变时效对18 - 8型奥氏体不锈钢室温及高温下的抗拉及光滑弯曲疲劳强度的影响。
The of effects of dynamic strain aging on the tensile and smooth rotating strength of 18-8 type austenitic stainless steel at room and elevated temperatures were investigated.
通过水泥砂浆模型实验,得到了理想的名义不偶合系数与切缝宽度,测试分析了不均匀的动态应变场。
Through model experiments, reasonable decouple coefficient range and slot width are gotten, and unsymmetrical dynamic strain field is analyzed.
针对采用压电元件的动态应变测量系统的低频失真问题,提出一种采用数字滤波器的低频特性补偿方案。
A digital filtering method is proposed for compensation of the low frequency characteristics of piezoelectric dynamic strain measurement system.
在动态应变信号测试中,经常需要根据信号的幅值不断调整放大器的放大倍数,测量电路复杂,精度低。
Measuring the dynamic strain involves the constant modification of gain, as determined by the signal amplitude. This practice suffers from the complex test and the low accuracy.
介绍了YCD - 1型超动态应变仪的研制、设计原理和主要特点,及在爆破近区应变测试中的应用。
This paper describes the development, design principle and main features of type YCD-1 ultra-dynamic strain gauge, and the application of it to strain testing in the near-blasting field.
运用超动态应变测试技术、超声波检测仪对层状复合岩体的爆破损伤破坏机理和破坏过程进行了实验研究。
By use of dynamic strain testing, the ultrasonic wave, bedded composite rock damage and fracture mechanisms and the fragmentation process during blasting have been experimentally studied.
动态应变时效是在金属和合金中,移动着的溶质原子和运动中的位错发生交互作用时所出现的一种强化现象。
Dynamic Strain Aging (DSA) is a strengthening phenomenon in metals and alloys caused by the interaction between the diffusive solute atoms and the moving dislocation.
但是将光纤光栅传感器埋入混凝土中,进行动态应变测量,尚存在诸如解调、封装等工程技术难题有待解决。
But it's difficult to demodulate the light signal and encapsulate the FBG when the dynamic strain inside the concrete is measured.
采用激光测速仪测量子弹速度,动态应变仪和TDS420 A数字示波器记录应变时程曲线进行动力响应分析。
The data of bullet velocities and time history curves of strain were recorded respectively by laser setup, high dynamic strain indicator and TDS420A oscilloscope.
提出了利用波长可调谐激光器对光纤光栅进行边沿滤波解调的新方法,该方法可实现多个测点动态应变的实时监测。
A novel method of edge filter demodulation for fiber Bragg grating that use wavelength tunable laser was proposed. Real-time monitoring of the multiple points' dynamic strain could be achieved.
研究了不同成份的铝镁合金在中温和不同应力作用下的动态应变时效,并阐述了动态应变时效在循环蠕变中的作用。
The application of dynamic strain ageing during cycling creep of Al-Mn alloys , consisting of various compositions, is studied at the middle temperature in this paper.
针对工程实践中常见的桥梁问题,建立了其在自由振动下的模型,分析了其前几阶振动模态下的振形和动态应变分布。
Aimed at popular bridge in the engineering, we build a piezoelectric bridge vibration model and analyze the vibration shape and distribution of the dynamic strain.
采用动态应变测试和试验模态分析法对QTZ80型塔式起重机进行振动测试和分析,并通过实验结论验证其理论分析的正确性。
Vibration measurement and analysis of QTZ80 tower crane is conducted through dynamic strain test and experimental mode analysis. The correctness of theoretical analysis has been proved by the results.
信号分析与处理是测试技术工作的重要组成部分,论述了一种自行开发的虚拟动态应变测试分析仪和信号分析功能的具体设计过程。
An virtual instrument of dynamic strain measurement and the designing procedure of the signal processing function were discussed in this paper.
在机构的弹性杆件上贴上压电陶瓷片作为驱动器,通过测量弹性杆上输出点的动态应变,确定机构动力系统的状态,实时地进行最优反馈控制。
The state of the dynamic system is determined by measuring the dynamic strains of the output points at the flexible links, and the real time optimal feedback control in operated.
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