Development of high-precision micro-coordinate measuring machine: Multi-probe measurement system for measuring yaw and straightness motion error of XY linear stage

2011 ◽  
Vol 35 (3) ◽  
pp. 424-430 ◽  
Author(s):  
Ping Yang ◽  
Tomohiko Takamura ◽  
Satoru Takahashi ◽  
Kiyoshi Takamasu ◽  
Osamu Sato ◽  
...  
Keyword(s):  
High Precision ◽  
Measurement System ◽  
Coordinate Measuring Machine ◽  
Probe Measurement ◽  
Linear Stage ◽  
Motion Error ◽  
Measuring Machine

Measurement System for Non-Cylinder Pin Hole of Piston

2011 ◽  
Vol 301-303 ◽  
pp. 617-622
Author(s):  
Z. Y. Yang ◽  
D. H. Liu ◽  
F. Yang ◽  
Z. G. Xie ◽  
Y. Huang
Keyword(s):  
High Precision ◽  
Measurement System ◽  
Coordinate Measuring Machine ◽  
Measuring Instrument ◽  
Movement Error ◽  
Pneumatic Measuring ◽  
Software Modules ◽  
Measuring Machine

Aim to the low measuring precision of non-cylinder pin hole using the coordinate measuring machine(CMM)and pneumatic measuring instrument, a new solution is proposed which use the high-precision digital lever probe to detect the contours of pin hole with a single clamping situation. The measuring principal of non-cylinder pin hole of piston is introduced and the functions and measuring processes of the measurement system are also presented. The software modules are given and the probe centering error and the parallelism movement error are discussed detailedly. A measuring example is given in the end. The measuring results show that the measurement system has the ability to detect the contours of pin hole with high-precision and efficiently.

A Multi-Probe Measurement Method to Evaluate the Yaw and Straightness Errors of XY Stage on High Precision CMM

2010 ◽  
Vol 447-448 ◽  
pp. 590-594 ◽  
Author(s):  
Ping Yang ◽  
Shusaku Shibata ◽  
Satoru Takahashi ◽  
Kiyoshi Takamasu ◽  
Osamu Sato ◽  
...  
Keyword(s):  
High Precision ◽  
Coordinate Measuring Machine ◽  
Simultaneous Equation ◽  
High Accuracy ◽  
Probe Measurement ◽  
Probe Method ◽  
Measuring Machine ◽  
Simulation Results ◽  
Straightness Error ◽  
Laser Interferometers

To develop a high precision Micro Coordinate Measuring Machine (Micro-CMM), it is important to evaluate an X-Y stage on the Micro-CMM. A precision multi-probe measurement system has been designed and developed for simultaneously measuring the yaw and straightness errors of the X-Y stage. In the system, an autocollimator measures the yaw error of the stage, and two laser interferometers measure the profile of a standard mirror which is fixed on the X-Y stage. The straightness error is reconstructed by the application of simultaneous equation and least-squares methods, and the uncertainty associated with the multi-probe method is simulated. When the interval of the laser interferometers equals 10 mm, the standard deviation of multi-probe method using the high accuracy autocollimator and the laser interferometers is about 10 nm. The simulation results satisfy our purpose for the uncertainty of 50 nm, and practical considerations are discussed.

scholarly journals Analysis of Motion Errors of Linear Guide Pair Based on Parallel Mechanism

Machines ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 33
Author(s):  
Peng-Hao Hu ◽  
Ying-Jun Lei ◽  
Yang-Kai Ou
Keyword(s):  
Parallel Mechanism ◽  
Coordinate Measuring Machine ◽  
Guide Rail ◽  
Motion Error ◽  
Linear Guide ◽  
Measuring Machine ◽  
Moving Platform ◽  
Straightness Error ◽  
The Relationship ◽  
Analysis Of Motion

This paper systematically summarized the technical state of art and research results on the motion error of a linear guideway, corrected some misconceptions, and further clarified the relationship between the straightness error of the guide rail itself and the motion error of the linear stage. Moreover, a new method based on parallel mechanism is provided to study the motion errors of the linear guide pair. The basic idea is to abstract the structural relationship between the stage and the guide rail into a 4-bar parallel mechanism. Thus, the stage can be considered as a moving platform in the parallel mechanism. Its motion error analysis is also transferred to moving platform position analysis in the parallel mechanism. The straightness motion error and angular motion error of the stage can be analyzed simultaneously by using the theory of parallel mechanism. Some experiments were conducted on the linear guideway of a self-developed parallel coordinate measuring machine. The experimental data and analysis verify the feasibility and correctness of this method.

scholarly journals Digital Twin of an Optical Measurement System

Sensors ◽  
2021 ◽  
Vol 21 (19) ◽  
pp. 6638
Author(s):  
Michiel Vlaeyen ◽  
Han Haitjema ◽  
Wim Dewulf
Keyword(s):  
Measurement Uncertainty ◽  
Measurement System ◽  
Optical Measurement ◽  
Coordinate Measuring Machine ◽  
Plane Angle ◽  
Optical Measurement System ◽  
Digital Twin ◽  
Digital Twins ◽  
Measuring Machine ◽  
Line Scanner

Digital twins of measurement systems are used to estimate their measurement uncertainty. In the past, virtual coordinate measuring machines have been extensively researched. Research on digital twins of optical systems is still lacking due to the high number of error contributors. A method to describe a digital twin of an optical measurement system is presented in this article. The discussed optical system is a laser line scanner mounted on a coordinate measuring machine. Each component of the measurement system is mathematically described. The coordinate measuring machine focuses on the hardware errors and the laser line scanner determines the measurement error based on the scan depth, in‑plane angle and out‑of‑plane angle. The digital twin assumes stable measurement conditions and uniform surface characteristics. Based on the Monte Carlo principle, virtual measurements can be used to determine the measurement uncertainty. This is demonstrated by validating the digital twin on a set of calibrated ring gauges. Two validation tests are performed: the first verifies the virtual uncertainty estimation by comparison with experimental data. The second validates the measured diameter of different ring gauges by comparing the estimated confidence interval with the calibrated diameter.

scholarly journals Usage of I++ Simulator to Program Coordinate Measuring Machines when Common Programming Methods are difficult to apply

2014 ◽  
Vol 14 (1) ◽  
pp. 1-7 ◽  
Author(s):  
A. Gąska ◽  
D. Szewczyk ◽  
P. Gąska ◽  
M. Gruza ◽  
J. Sładek
Keyword(s):  
High Precision ◽  
Coordinate Measuring Machine ◽  
Coordinate Measuring Machines ◽  
General Process ◽  
Standard Methods ◽  
Machine Performance ◽  
Measuring Machine ◽  
Machine Programming ◽  
Real Machine

Abstract Nowadays, simulators facilitate tasks performed daily by the engineers of different branches, including coordinate metrologists. Sometimes it is difficult or almost impossible to program a Coordinate Measuring Machine (CMM) using standard methods. This happens, for example, during measurements of nano elements or in cases when measurements are performed on high-precision (accurate) measuring machines which work in strictly air-conditioned spaces and the presence of the operator in such room during the programming of CMM could cause an increase in temperature, which in turn could make it necessary to wait some time until conditions stabilize. This article describes functioning of a simulator and its usage during Coordinate Measuring Machine programming in the latter situation. Article also describes a general process of programming CMMs which ensures the correct machine performance after starting the program on a real machine. As an example proving the presented considerations, measurement of exemplary workpiece, which was performed on the machine working in the strictly air-conditioned room, was described

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