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| 題 名 | 以陣列式電射作高速三維輪廓量測=High Speed 3-D Profilometry Utilizing Laser Diode Array |
|---|---|
| 作 者 | 張維哲; 章明; 林高輝; | 書刊名 | 中原學報 |
| 卷 期 | 30:3 2002.09[民91.09] |
| 頁 次 | 頁331-337 |
| 分類號 | 446.8401 |
| 關鍵詞 | 三維輪廓量測; 光學掃描; 雷射陣列; 3-D profilometry; Optical scanning; Laser array; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 本研究提出一套藉由雷射二極體所組合而成的雷射陣列探頭量測系統,此雷射陣列式探頭是由100顆雷射二極體,分別以每列20顆的排列所組合而成,形成100條雷射光束投射於待測物上。基於以往量測系統所遇到的投射光束相互重疊或不連續等困擾,本研究藉由電控的方式,來控制投射單雷射線或多雷射線,亦可利用分組編碼方式來計算所投射雷射線的序號。量其所花費的時間係依據光學掃描的方式來決定,若以序列方式逐一投射單線至物體量測,大約需要3秒鐘的時間,若以分組編碼方式投射雷射光,可將量測時間大幅縮短至0.1秒以下,實測結果顯示對200x150mm2的待測物體,其量測精度可達到0.5mm0整體而言,本研究藉由訊號同步、雷射編碼投射以及空間轉換相關技術的搭配,可達到對物體外形輪廓進行快速資料點的擷取,有助於提昇三維輪廓量測的應用範疇及經濟效益。 |
| 英文摘要 | A designing concept of Iaser diode array probe has been introduced which intends to develop an optical scanning device that is capable of measuring 3-D profiles with high speed and high precision. The probe consists of 100 laser lines emerged from 100 laser diodes and a angedin five rows. In generaI this measurement adopts the idea of multiple laser beam projections. The profile data of the specimen can be obtained simultaneously without needing any scanning mechanism. The beams projected onto the surface may cause difficulty in distinguishing them. This problem has been resolved by the electronic controIs on the on/off sequences of the diode array Iight source. A profile may be obtained by projecting Iaser lines onto the surface simultaneous or single-line scanning the surface in serious or muIti-line scanning in a specified order. Measurement time is dependent on the process of optical scanning. Single-line scanning usually take 3 seconds or Iess. Measurement resolution is dependent on the spacing between the projection Iines and line projection angle. Experimental results show that an accuracy of 0.5 mm could be obtained for a measuring range of 250 x 150 mm2. So that a new 3-D profile measuring system could beexpected in this probe to meet the needs of high speed and high precision 3-D profile measurement in the industry. |
本系統中英文摘要資訊取自各篇刊載內容。