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提出可用于物體輪廓在線抗振測量的雙無衍射光束三角測量系統 .系統以雙無衍射光束作為測量光束 ,結構簡單靈活 .給出了系統結構及原理 ,推導了相關算法 ,并在振動條件下進行了實驗 .結果說明 ,該系統能有效地去除振動噪聲的影響 . Dual non-diffracting beams based on triangulation system are proposed .This system can be used for in-process vibration resistant in profile measurement .In this sy stem, the dual non-diffracting beams are used as incident beams .The system structure is simple and flexible .The sy stem structure and principle are introduced .The corresponding calculation algo rithms are deduced .The experimental tests under vibration condition are carried out and the results illustrate that the influence of vibration noise has been removed effectively .

提出一種新型激光三角測量系統 .該系統用無衍射光作測量光束 ,用虛擬探測器擴展探測器尺寸 .與傳統激光三角測量相比 ,該系統在保持高測量精度及高分辨率的同時 ,擴展了測量范圍 .且系統機構簡單 ,測量速度快 .A novel laser triangulation system is proposed .The no n-diffracting beam is used as the measuring beam and a virtual detecto r is used to expand detector size .Compared w ith the conventional triangulation measurement sy stem, the measurement range in this system is prolonged w hile the hig h measurement accuracy and the hig h resolution are kept .The sy stem structure is simple and the measurement speed is high .