Title: Measurement and measuring instrument for excircle shape of piston ring
Application Number: 93103047 Application Date: 1993.03.26
Publication Number: 1093162 Publication Date: 1994.10.05
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01B7/28
Applicant(s) Name: Yang Chenglin Address: 130011
Inventor(s) Name:
Attorney & Agent:
Abstract:
     By using accurate electronic linear measure system, the present invention measures the shape difference of piston ring to be measured and standard piston ring at multiple points in the circumference so as to measure light leakage degree of piston ring. The present invention uses computer processing system in sampling and operation and compensates the measurement error produced by rotary axis, and thus it is efficient, accurate and practical.
Time: 8
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