Title :
A Novel Measuring Method of Circular Run-Out in any Direction
Author :
Piao Weiying ; Xu Lianhu ; Yuan Yibao ; Sun Tao
Author_Institution :
Sch. of Mechatron. Eng., Harbin Inst. of Technol., Harbin, China
Abstract :
The difficulty of measuring the run-out of engine valve seat related to the centerline of the valve guide is the determination of the datum axis. A method that the gauge was fixed on the conical surface of the valve seat was chosen. One sensor on the conical surface of the gauge measured the run-out of the valve seat related to the centerline of the gauge. The sensors of the gauge on the guide rod measured the centerline of the valve guide. A novel mathematic model of measurement is established. The advantage of this method is that the method of least square circle is needn´t. So it is more conveniently on some occasion.
Keywords :
engines; gauges; least squares approximations; valves; circular run-out measuring method; datum axis determination; engine valve seat; gauge sensors; guide rod; least square circle; measurement mathematic model; valve guide centerline; valve seat conical surface; Electric variables measurement; Extraterrestrial measurements; ISO standards; Mathematical model; Uncertainty; Valves; circular run-out in any direction; datum axis; mathematic model of measurement;
Conference_Titel :
Measuring Technology and Mechatronics Automation (ICMTMA), 2013 Fifth International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4673-5652-7
DOI :
10.1109/ICMTMA.2013.28
