%0 Journal Article
%T Technique of 3-D Carrier Modulation in ESPI and its Application in Displacement Measurement of Diesel Engine<br>三维电子散斑干涉载频调制及其在柴油机上的应用
%A SUN Ping
%A HAN Qing
%A WANG Xiao-feng
%A LIU Fei
%A HUANG Zhen-xian
%A <br>孙平
%A 韩青
%A 王晓风
%A 刘菲
%A 黄珍献
%J 光子学报
%D 2007
%I 
%X The technique of three-dimensional(3-D) carrier modulation in ESPI is applied to the measurement of three-dimensional displacement.The object is illuminated by three coherent lights from the horizontal,the vertical and the normal direction respectively.The carrier in horizontal and in vertical direction is introduced by rotating reflectors a small angle to obtain the modulation of displacement field.And the out-of plane displacement field can be modulated by rotating object with a small angle.The phase fields of deformation can be demodulated by Fourier transform method respectively,which offer an accurate 3-D measurement results.3-D displacement fields of oil pump of diesel engine are measured successfully by the technique presented.
%K Physics optics
%K Electronic Speckle Pattern Interferometry(ESPI)
%K Displacement measurement
%K Carrier
%K Modulation
%K Oil pump<br>物理光学
%K 电子散斑干涉
%K 位移测量
%K 载波
%K 调制
%K 油泵
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=4D10421E3E0F73806B8E7AB1BEE85FD2&yid=A732AF04DDA03BB3&vid=933658645952ED9F&iid=DF92D298D3FF1E6E&sid=3EF235AF78C45721&eid=DF8B97D5075E2D12&journal_id=1004-4213&journal_name=光子学报&referenced_num=0&reference_num=22