| Abstract
ID |
|
1944 |
| Title |
|
Research of Measuring Accuracy of Laser Tracker System |
| Category |
|
Metrology: Instrumentation, Design & Testing |
| Primary
author |
|
|
| Organization |
|
|
|
| Content |
|
This paper presents the achievement of a China NSFC project. The Laser Tracker System (LTS) is a portable 3D large size measuring system with measuring range of 35 meters. It is used at workshop and possesses many advantages, such as high accuracy, high speed and etc. The measuring conditions such as time and temperature can greatly affect the measuring accuracy of LTS.
This paper pays great attention to study how the time and temperature affect the measuring accuracy of LTS. Coordinate Measuring Machine (CMM) is employed as a high-level measuring instrument. A lot of experimental work has been done to find how the time and temperature affect the measuring accuracy of LTS. The experiments show the LTS can work well with the highest measuring accuracy just after three-hour warm-up. However, the LTS becomes unstable and the measuring accuracy decreases after working for 10 hours. The LTS needs self-calibration and compensation every 10 hours. In addition, the temperature is also a key to influence measuring accuracy of LTS.
The experiments show that the measuring error can increase to 29.6micro meter when the environment temperature is 30.5C even if the measuring accuracy error is 5.9micro meter when the temperature is between 20C and 23.8C. This research achievement provides a very useful guidance for good application of LTS at workshop. |
|
|
|
