本文对在应用应变式扭矩传感器时由于在弹性轴上的弯矩而引起的误差进行了力学分析,并提出了消除的方法。
This paper analyzes the error of torque sensor of strain-resistor which derives from the influences of bending moment on elastic axis, and discusses the Eliminating techniques.
研究了应变仪在使用过程中需要扩大量程时常用的几种方法,同时分析了几种方法的误差。
Some methods are developed to extend the measure bound of the strait gauges in use. And the errors of these methods are analyzed.
通过对误差的分析,说明由一般的拉伸曲线求解该新型应力应变关系的可行性及可靠性。
Through analyzing error, it was shown the feasibility and the reliability of solving the new relationship of stress and strain by ordinary tensile curve.
分析了电子引伸计应变测量误差形成的主要原因,以及对金属材料拉伸试验强度测试的影响,介绍了引伸计使用中的一些经验和注意事项。
The main cause of error of strain measurement using electronic extensometer and its effects on the strength measurement in tensile tests of metallic materials was analyzed.
边坡的破坏往往伴随着很大的位移和塑性应变,因此,采用传统的小变形有限元方法计算无疑误差较大。
Slope of destruction often associated with large displacement and plastic strain, therefore, the traditional small-deformation finite element method is no doubt big error.
若将其应变简化为位移的线性表达式,则存在着很大的误差。
Big error occurs when such plastic strain is simplified as the linear function of displacement.
针对钻孔法测量残余应力方法中变形测量存在的误差,提出用光栅应变花测量钻孔所释放的残余应变。
For eliminating the errors in deformation measuring and improving the accuracy in hole-drilling method, this paper presented an optical technique, grating rosette and moire interferometry.
同时研究了基于索力监测的光纤光栅传感器及电阻应变传感器的基本原理及监测误差分析。
At the same time, study on the basic principles and error analysis of Fiber Bragg Grating Sensors and Resistance Strain Sensors based on the monitoring of the cable forces.
现有井壁围岩应力求解模型大都基于平面应变假设,相对岩石真实应力状态会有一定的误差。
Most of the existing models for borehole wall stress are based on plane strain hypothesis. So some errors may be generated as compared with the real stress state of rock.
对受平面应力场的作用的正交异性板的表面应力,应变进行了实测研究。并对测试误差进行了分析。
The surface strain of the orthogonal plate is measured under the action of the planar stress field, and the error is analyzed.
这个指标描述了由异质性而非抽样误差引起效应变异的百分比。
This describes the percentage of the variability in effect estimates that is due to heterogeneity rather than sampling error (chance).
但是有可能通过亚步应变测量来提高系统的精确度,这样对于7.22%的垂直应变具有0.41%的剩余误差。
It was possible to increase the accuracy by performing the strain measurements via sub-steps. This had a remaining error of 0.41% for 7.22% vertical strain.
本文简要地评估了土力学现场测量中常用的连杆式应变传感器的力学匹配误差。
A brief review of the errors from mechanical mismatch of 'Spool Gage' commonly used in field soil strain measurement is made.
提出了一种自适应变步长恒模盲均衡算法,利用剩余误差信号的自相关函数估计值作为控制步长的因子来自适应改变步长的大小,克服了恒模算法存在的固有缺陷。
A new variable step-size CMA blind equalization algorithm is introduced to conquer the defects of CMA, in which the step size is controlled by the estimation of error signal's autocorrelation.
目前通过应变增量计算残余应力的方法仍然是通过事先试验标定,测量超强或低强匹配焊缝中的残余应力时采用的仍然是母材的标定系数,因而会带来严重误差。
The great error could be produced in measuring the residual stress in a weld with the use of calibration coefficient for the base metal instead of the weld metal.
当输入电压为正弦交流电压时,非晶薄带磁感应效应变化幅度的不重复性误差很小,且受温度和湿度的影响小。
The non-repeatability error and influence induced by temperature and humidity are small when the input voltage is sinusoidal.
当输入电压为正弦交流电压时,非晶薄带磁感应效应变化幅度的不重复性误差很小,且受温度和湿度的影响小。
The non-repeatability error and influence induced by temperature and humidity are small when the input voltage is sinusoidal.
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