| Project/Area Number |
16560106
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Production engineering/Processing studies
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| Research Institution | Tokyo metropolitan college of technology |
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Principal Investigator |
FUKATSU Hiroya Tokyo metropolitan college of technology, System Engineering, Assistant professor, 生産システム工学科, 助教授 (80228866)
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| Co-Investigator(Kenkyū-buntansha) |
YANAGI Kazuhisa Nagaoka University of Technology, Engineering Department, Professor, 工学部, 教授 (80108216)
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| Project Period (FY) |
2004 – 2005
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| Project Status |
Completed (Fiscal Year 2005)
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| Budget Amount *help |
¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 2005: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2004: ¥2,100,000 (Direct Cost: ¥2,100,000)
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| Keywords | Noncontact displacement sensor / Speckle noise / Optical stylus / Profile measurement / Two orthogonal systems |
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| Research Abstract |
Most optical styluses composed of laser diode and objective lens are troubled with signal noise when being traversed over engineering surfaces. The main cause of that signal noise can be attributed to laser speckle included in the reflected light from the object surface. It has been strongly demanded to decrease the influence of such speckle noise on the displacement signal of those optical styluses. In this research, a novel optical measurement system was proposed for a new optical stylus that has the speckle noise removal function. By using the newly developed optical stylus, surface profiles with less high frequency components were obtained for several kinds of machined surfaces with different surface textures. In order to improve further its measuring performance, we provided with an additional compensation system in the orthogonal direction and designed the selection technique between the two alternatives. Applicability of the developed optical stylus to the profile measurement of engineering surfaces was experimentally verified.
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