介绍了螺纹磨床传动链误差测量和分析的方法。
This article introduces the methods for measuring and analyzing errors in driving chain of thread grinding machine.
目的探讨锥形束CT用于调强放疗分次间摆位误差测量。
Objective: This work was to analyze the set-up errors in image guided IMRT for tumors using the cone-beam computed tomography (CBCT).
开发了便携式激光准直仪及直线度误差测量、评定软件。
The portable laser collimator and the straightness measuring and evaluating software are developed.
基于配准,通过运动分析首次实现了流速的无原理误差测量。
Through motion analysis and based on registration we achieve velocity measurement without principle errors for the first time.
论文研究的是非连续回转面径向跳动误差测量中的数据处理问题。
This article is about the research on the data processing problem of measuring the radial jumped error of discontinuous gyration surface.
采用非接触光电式测量方法,设计了多工位数控刀架误差测量系统。
An error measuring system for multi-location numerical control cutter holder was developed by adopted non-contact photoelectric measuring method.
辐射测温的主要问题是解决未知的或变化的表面发射率所引起的误差测量。
The main problem in radiation thermometry is how to minimize the measuring error resulting from unknown or variant surface emissivity.
删除圆度误差测量中的这些无关点可有效降低圆度评定算法的计算复杂度。
So-called unassociated points for roundness evaluation are those that are not on the MZCs.
通过误差测量与补偿试验,验证了该方法应用于数控机床误差补偿的可行性。
Through an experiment to measure and compensate the spatial position errors, the feasibility of applying this compensation method to NC machine tools is validated.
推出了一种新的针阀体座面圆跳动误差测量装置,介绍了误差的计算与评定方法。
A new device for measuring run out error of needle valve seat′s cone surface is proposed. The calculating and estimating methods of the error are also described in the paper.
以激光干涉仪直线度误差测量为基础研究了数控机床垂直轴滚转角误差的检测方法。
A method for roll angular error measurement of NC machine tool vertical axis was studied based on straightness measurement using laser interferometers system.
以激光干涉仪直线度误差测量为基础研究了数控机床垂直轴滚转角误差的检测方法。
The rotation angle error affects the measuring precision of relative orientation between projectile and target by Charge Coupled Device(CCD).
为了解决实际生产中大模数滚刀的在线测量,提出一种滚刀容屑槽周节误差测量系统。
To solve the problem of inline measuring hobs with bigger modulus in practice production, an inline measuring system for the circular pitch error of hobs is introduced.
详细分析了用最小二乘法和最小包容区域法评定形状误差测量结果时的不确定度估计问题。
The problems of uncertainty estimation are analyzed in detail when measurement results of form errors are evaluated with the methods of least-square and minimum zone.
研究形状误差测量结果的不确定度的估计方法是计量学和测量误差理论中的重要课题之一。
Research on the method for estimating the uncertainty of measurement results of form error is one important subject in the field of metrology and measuring error theory.
提出了根据空间立体几何原理对桶形基础平台进行桶基安装误差测量并保证安装精度的方法。
Based on the theory of solid geometry, a survey method to measure the bucket foundation installation error and ensure the installation precision is presented.
结合上述角误差提取方法,各通道间的幅相不平衡得到有效校正,因此提高角误差测量精度。
Combined with the Angle error extraction method mentioned above, the amplitude-phase imbalance is calibrated effectively. Thus, the measuring precision of Angle error is higher.
通过检测A相一个周期的同一边沿,可精确判断其旋转方向,给出了无误差测量的实现方法。
Through detecting the same edge in one period of Phase a to judge its direction of rotation precisely, a method for error-free measurement has been given.
由于在直线度误差测量过程中的各种原因,导致许多观测数据与实际值偏离或者很难进行处理。
Because of many reasons in the course of straightness error measuring, many original observed data deviate from actual value and are difficult to process.
在满足角位置误差测量精度的情况下,为了提高测试效率,将递推最小二乘法应用于组合测角中。
In order to improve the checking efficiency while satisfying the prerequisites for accuracy simultaneously, the recursive least square method is applied to the angular errors checking process.
建立了采样点均匀分布情况下,圆度误差测量采样点数量与测量极限误差之间的定量关系数学模型。
Under the situation of even distribution of fitting nodes, a mathematic model is established by means of the relation between the number of fitting nodes and the limit error of measurement.
在丝杠螺旋线误差测量原理的基础上,分析用手动三坐标测量机测量丝杠副螺旋线误差存在的问题。
Based on the measuring principle of the screw bar helix error, the problems of measuring the screw bar helix error by using manual 3d measuring machine are analyzed.
此外,为符合会聚误差测量中栅极驱动脉冲特定带宽的要求,脉冲的高技术指标仍然是不可缺少的因数。
In addition, the demanding technical specification is still indispensable factor, which accords with the special bandwidth demand of the grid drive pulse in measuring the convergence error.
文章分析了在圆分度误差测量中应用谐波分析法处理数据的原理,同排列互比法相比,用此法可以减少检测工作量。
Data are processed by harmonic-analysis method in the error separation of circular division. This method can reduce the workload of inspection.
工件中常包含各种各样的管道,对管道的圆柱度误差测量和内表面显示对评定工件的整体性能和使用寿命有着重要意义。
There are many kinds of pipelines in real workpiece. The cylindricity error evaluation and inner surface display of pipe are significant for evaluating performance and service life.
通过分析,提出了一种新的误差分析及补偿的方法,该方法可以用计算机进行辅助误差测量及数据处理,并证明了这种方法的正确性和可行性。
Meanwhile, a new method of error analyses and compensation is presented, which can carry out aided by computer. It is proved that it is a correct and feasible method.
从误差测量环节入手,基于IR/MMW双模结构,采用信息融合处理技术提高其估计跟踪精度,最终达到降低制导误差,提高武器性能的目的。
Based on IR/MMW dual-mode, information fusion technology, was provided to improve estimated tracking precision, finally reduce guidance error and enhance performance of weapons.
文中利用了两种对非规则边界参数区域进行拟合的方法,对同向双螺杆挤出机四面体间隙进行了拟合,并建立了一种曲面拟合误差测量的新方法;
Two methods were applied to fit surfaces of the tetrahedral gap of an intermeshing co-rotating twin-screw extruder. The surfaces are irregular border's parameter domain.
提出了一种圆度误差测量数据采集系统,该系统采用非接触电涡流传感器作为圆度误差数据的检测元件,采用高速数据采集卡采集圆度误差数据。
The detecting element adopts the non-contacting current vortex sensors in the system. The data collecting of circular error is equiped with the high speed acquisition card.
提出了一种圆度误差测量数据采集系统,该系统采用非接触电涡流传感器作为圆度误差数据的检测元件,采用高速数据采集卡采集圆度误差数据。
The detecting element adopts the non-contacting current vortex sensors in the system. The data collecting of circular error is equiped with the high speed acquisition card.
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