测针

利用数字图像处理技术量测针片状颗粒含量

Measuring Percentage of Flat-elongated Particles Based on Digital Image Processing Method

五孔测针标定曲线数学模型的计算机控制

Computerized Mathematical Model of Demarcated Curve for Five-hole Measuring Needle

缝纫过程中针温的测定&用测针温的方法评定织物可缝性的研究

Needle temperature testing as the method to test fabric sewability

对零式（三孔）方向测针采用零序功率绝对值构成反时限零序电流保护的方案探讨

Null-type yaw probe Research on inverse time current relay based on the absolute value of zero-sequence power

三维流场测定中五孔测针标定曲线的数学模型

The Mathematical Model of Demarcated Curve of Measuring Needle with Five Holes in Measuring Three-dimensional Flow Field

第一，针对内螺纹单针测量系统存在的定位基准误差，提出了双针测量的体系结构，并利用双测针结构对定位误差进行修正。

Firstly , considering the single probe system 's datum error , the paper puts forward a double probe system and modifies the datum error .

由测量点数据，测量程序控制测针自动进行测量，从而测得真实齿面的结构参数。

Using the data of grids , the measurement process is completed automatically , the deviations of the real tooth surface from the theoretical one are obtained .

在计算中，考虑了测针与针孔壁间的附加摩擦力，以及测针端部凸出压板表面的高度对实测结果的影响，并分别进行了修正。

The effects of additional friction between pin and pin-hole and of the height of pin over the press-plate surface on the practically measured values was taken into account and their corrections were made in the computation .

结果：当垂直进针至得气时，测得进针深度为73mm，针尖所在位置相当于椎间孔外口，此即为最佳进针深度与角度。

Results When the acupuncture needle was inserted vertically to the external space of intervertebral foramen of human body with arrival of qi , the tip of needle could reach to 73 mm deep , which is the best needling depth and angle .

研究一种快速测报铝合金针孔度的方法。该方法是在铝合金凝聚固过程中，通过测量其因氢析出所产生的自由线膨胀而进行针孔度预测的。

The authors recommend a way for estimating the percentage of pinhole in solidified aluminum alloy by measuring its free linear expansion during the solidification .

针对CMM和齿轮测量中心测量小轮时存在的问题，提出了基于展成原理的齿形误差在机测量方法，可利用小直径测球的直测针无干涉地完成齿面的测量。

Considering the shortcomings of measuring principle of CMM and gear measuring center when inspecting the pinion , an on-machine measuring method of tooth forms errors based on generating principle is proposed . The tooth form errors can be measured without interference by using the probe with smaller diameter .