基于激光雷達(dá)的衛(wèi)星發(fā)動(dòng)機(jī)精度測(cè)量方法
Alignment precision measurement method of satellite engine based on laser radar
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摘要: 針對(duì)衛(wèi)星發(fā)動(dòng)機(jī)精度測(cè)量要求,，文章提出了一種基于激光雷達(dá)的測(cè)量方法,。首先利用多個(gè)已知位置的靶球建立衛(wèi)星測(cè)量基準(zhǔn)坐標(biāo)系；之后利用高精度平面鏡的隱藏點(diǎn)掃描測(cè)量功能獲取發(fā)動(dòng)機(jī)的內(nèi)部輪廓點(diǎn)云圖,；最后利用Spatial Analyzer專業(yè)測(cè)量軟件計(jì)算出發(fā)動(dòng)機(jī)內(nèi)部的關(guān)鍵幾何中心軸線方向,。測(cè)試結(jié)果表明，該測(cè)量方法具有較好的精度和重復(fù)性，可用于衛(wèi)星發(fā)動(dòng)機(jī)的精度測(cè)量,。Abstract: The measuremem principle of the laser radar and its application in the satellite engine alignment precision test are discussed in this paper. A measuring approach is proposed according to the alignmem precision measuremem requirements for satellite engines. First, a benchmark coordinate frame of the satellite is established by using some target balls at known places. Then, an inner profile point cloud of the engine is obtained by using the hidden point scan function of the high-precision plane mirror. Finally, the directions of the inner key geometry cemer axes arc calculated with the Spatial Analyzer software. The measuremem results show that this method can be used in the alignment precision measurement for satellite engines with high precision and good repeatability.
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