| ชื่อเรื่อง | : | Dual-wavelength image-plane digital holography for dynamic measurement |
| นักวิจัย | : | Fu, Yu , Pedrini, Giancarlo , Hennelly, Bryan M. , Groves, Roger M. , Osten, Wolfgang |
| คำค้น | : | DRNTU::Science::Physics::Optics and light. |
| หน่วยงาน | : | Nanyang Technological University, Singapore |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2552 |
| อ้างอิง | : | Fu, Y., Pedrini, G., Hennelly, B. M., Groves, R. M., & Osten, W. (2009). Dual-wavelength image-plane digital holography for dynamic measurement. Optics and Lasers in Engineering, 47(5), 552-575. , http://hdl.handle.net/10220/6484 , http://dx.doi.org/10.1016/j.optlaseng.2008.10.002 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | Optics and Lasers in Engineering |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | A dual-wavelength image-plane digital holography, combined with a windowed Fourier analysis, is presented for dynamic measurement of a vibrating object. In order to expand the range of the velocity measurement, the object is simultaneously illuminated by two lasers with different wavelengths. A sequence of digital holograms of a vibrating object is captured by a CCD camera and two wrapped phase maps are retrieved from each digital hologram. At each instant, a new phase distribution with a synthetic wavelength is obtained by subtracting these two wrapped phase maps. A windowed Fourier analysis is then applied spatially and temporally to retrieve the high-precision displacement and velocity of the tested object. Experimental results show the requirement on the camera capture frequency is reduced by the proposed method. |
| บรรณานุกรม | : |
Fu, Yu , Pedrini, Giancarlo , Hennelly, Bryan M. , Groves, Roger M. , Osten, Wolfgang . (2552). Dual-wavelength image-plane digital holography for dynamic measurement.
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Fu, Yu , Pedrini, Giancarlo , Hennelly, Bryan M. , Groves, Roger M. , Osten, Wolfgang . 2552. "Dual-wavelength image-plane digital holography for dynamic measurement".
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Fu, Yu , Pedrini, Giancarlo , Hennelly, Bryan M. , Groves, Roger M. , Osten, Wolfgang . "Dual-wavelength image-plane digital holography for dynamic measurement."
กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2552. Print. Fu, Yu , Pedrini, Giancarlo , Hennelly, Bryan M. , Groves, Roger M. , Osten, Wolfgang . Dual-wavelength image-plane digital holography for dynamic measurement. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2552.
|
ridm@nrct.go.th ระบบคลังข้อมูลงานวิจัยไทย รายการโปรดที่คุณเลือกไว้
