An Investigation into the Performance of Complex Plane Spilt Spectrum Processing Ultrasonics on Composite Materials
A number of signal processing techniques exist to improve signal to noise ratio of ultrasonic signals. One such technique is called Complex Plane Split Spectrum Processing (CSSP). This technique is a modification to the Split Spectrum Processing (SSP) technique. CSSP is capable of being able to surpass SSP in terms of improvements in signal to noise ratios, while maintaining linearity in both the amplitude and the energy content of a flaws signal.1 CSSP makes use of an additional mathematical dimension (the complex plane) when solving for the probability that a signal originates from a real reflector such as a flat bottom hole. This paper outlines work performed on laminate composite materials (carbon fibre and G11 phenolic sheet material) to assess the efficacy of the CSSP technology on these materials. This paper also serves to formalize some of the validation steps required of CSSP such that it may be ported from the laboratory to industrial application as an ultrasonic testing technology.
Laminate composite materials CSSP Ultrasonic Testing
Manfred S JOHANNES Philippe RUBBERS
CSIR P O Box 395, Pretoria, 0001 SCM 15 Tesla Crescent, Sunnighill, 2157
国际会议
第十七届世界无损检测会议(17th World Conference on Nondestructive Testing)
上海
英文
1376-1382
2008-10-25（万方平台首次上网日期，不代表论文的发表时间）