摘要
在简要地分析了傅立叶变换轮廓法（ＦＴＰ）和改进型傅立叶变换轮廓法（ＩＦＴＰ）测量三维物体形状轮廓的原理后，讨论了ＩＦＴＰ的不足，指出ＩＦＴＰ虽然提高了能测三维物体的陡峭度，但存在着人为引入的误差。针对ＩＦＴＰ的不足，提出了修改的方法，利用ＦＴＰ本身的特点，消除了人为误差，在提高测量陡峭度的同时，保证了测量的精度。
Abstract After analysing the principle of Fourier transform profilometry(FTP)and improved FTP for the automatic measurement of 3-D object shapes. the defect of IFTPis discussed first.Though IFTP can measure steepper objects than FTP. the man- made er-ror is also introduced. To overcome the defect of IFTP.a modified method utilizing the char-acters of FTP is proposed in this paper.It can measure steepper ohects than FTP withoutdescending the measuring precision.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
1995年第2期113-118,共6页
Chinese Journal of Scientific Instrument
基金
国家自然科学基金
