圖像傳感測(cè)量在熱成型工藝中的應(yīng)用研究

介紹圖像傳感器對(duì)快速熱成型工件的外徑在線檢測(cè)原理。通過(guò)對(duì)誤差因素的實(shí)驗(yàn)驗(yàn)證和理論分析,給出一種適用的圖像信號(hào)的綜合誤差補(bǔ)償方法。該方法避開(kāi)了難以檢測(cè)的誤差因素,借助易測(cè)的相關(guān)參量的在線估值,適時(shí)給出誤差補(bǔ)償量。該系統(tǒng)用于熱工現(xiàn)場(chǎng),測(cè)控精度滿足工藝要求。
關(guān)鍵詞: 熱成型; 在線檢測(cè); 誤差補(bǔ)償
Abstract : The principle of an imaging sensor used for on2line measurement of workpieces produced by high speed hot forming is presented. And a new compensation method of the synthesis error of on2line measurement of the image sensor signal is given by proof test and theoretic analysis of the major factors which resulted in the errors. Through this new method , the difficulties in direct on2line measurement of some errors are overcome by means of the
on2line estimated value of correlative parameters which are easy to determine , and the compensated amount of the cor2 responding error is given. Its application to the hot forming testing field showed that the measuring precision of this new method is satisfactory.
Key words : Hot forming ; On2line measurement ; Error compensation