Identification Method of Structure Transfer Function for Machine Tools Based on Pseudo-Random Process

2006 ◽  
pp. 366-369
Author(s):  
Q. Zhang ◽  
W. Zhang ◽  
Yan Shen Xu
Keyword(s):  
Transfer Function ◽  
Random Process ◽  
Machine Tools ◽  
Identification Method

scholarly journals Rapid Measurement and Identification Method for the Geometric Errors of CNC Machine Tools

2019 ◽  
Vol 9 (13) ◽  
pp. 2701 ◽  
Author(s):  
Li ◽  
Yang ◽  
Gao ◽  
Su ◽  
Wei ◽  
...  
Keyword(s):  
Error Compensation ◽  
Machine Tools ◽  
Degrees Of Freedom ◽  
Cnc Machine Tools ◽  
Geometric Errors ◽  
Two Dimensional ◽  
Cnc Machine ◽  
Angle Sensor ◽  
Identification Method ◽  
Measuring Machine

Error compensation technology offers a significant means for improving the geometric accuracy of CNC machine tools (MTs) as well as extending their service life. Measurement and identification are important prerequisites for error compensation. In this study, a measurement system, mainly composed of a self-developed micro-angle sensor and an L-shape standard piece, is proposed. Meanwhile, a stepwise identification method, based on an integrated error model, is established. In one measurement, four degrees-of-freedom errors, including two-dimensional displacement and two-dimensional angle of a linear guideway, can be obtained. Furthermore, in accordance with the stepwise identification method, the L-shape standard piece is placed in three different planes, so that the measurement and identification of all 21 geometric errors can be implemented. An experiment is carried out on a coordinate measuring machine (CMM) to verify the system. The residual error of the angle error, translation error and squareness error are 1.5″, 2 μm and 3.37″, respectively, and these are compared to the values detected by a Renishaw laser interferometer.

Transfer Function Identification Method for Fast-Steering Mirror Driven by PZT

2020 ◽  
Vol 47 (11) ◽  
pp. 1105002
Author(s):  
周睿 Zhou Rui ◽  
张强 Zhang Qiang ◽  
甘永东 Gan Yongdong ◽  
沈锋 Shen Feng
Keyword(s):  
Transfer Function ◽  
Identification Method ◽  
Function Identification

System Identification of the Machining Process

1975 ◽  
Vol 97 (3) ◽  
pp. 1143-1148 ◽  
Author(s):  
D. A. Milner
Keyword(s):  
System Identification ◽  
Transfer Function ◽  
Computer Program ◽  
Frequency Response ◽  
Machining Process ◽  
Response Data ◽  
Identification Method ◽  
Function Analyzer

This paper describes an identification method for determining the transfer function of a system by the use of a computer program. Frequency response data is obtained by the use of a Digital Transfer Function Analyzer and, by on- or off-line computing, the transfer function of the desired system is obtained.

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