This paper presents a micro-stylus probe, which is composed of a precision glass micro-ball and a shaft made by a glass tube. The diameter of the micro-ball was 50 μm. The tip angle of the glass-tube shaft was approximately 10 degrees. Strength test shows that the tolerance of glass tube micro-stylus against external forces is 90 mN. To reduce the stick-slip phenomena, a micro-tapping probe employing the glass tube micro-stylus and a PZT actuator was demonstrated. The micro-stylus probe was mounted to an air-bearing displacement sensor for scanning surface form metrology. Experimental results showed that the micro-tapping probe was effective for reducing the influence of the stick-slip phenomena.

Date Published: 15 November 2011
PDF: 6 pages
Proc. SPIE 8321, Seventh International Symposium on Precision Engineering Measurements and Instrumentation, 83211Z (15 November 2011); doi: 10.1117/12.904875

Published in SPIE Proceedings Vol. 8321:
Seventh International Symposium on Precision Engineering Measurements and Instrumentation
Kuang-Chao Fan; Man Song; Rong-Sheng Lu, Editor(s)