Zobrazeno 1 - 7
of 7
pro vyhledávání: '"HyeongJun Huh"'
Autor:
Myoung-Koo Kang, Ki-Jang Oh, Yasuaki Nagata, HyeongJun Huh, Hirohisa Yamada, Choong-Soo Lim, Shohhei Hashiguchi, Hyun Chul Park
Publikováno v:
IFAC Proceedings Volumes. 45:96-100
A material property measurement system of steel sheet using laser-based ultrasonics has been developed. The system consists of pulsed Nd:YAG laser for ultrasonic generation, CW single frequency laser and multi-channel interferometer for ultrasonic de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38146020c1eb345a49bcdf81457d1a0c
https://doi.org/10.3182/20120910-3-jp-4023.00005
https://doi.org/10.3182/20120910-3-jp-4023.00005
Autor:
Hyun Chul Park, Hirohisa Yamada, Yasuaki Nagata, Ki-Jang Oh, Shohhei Hashiguchi, Choong-Soo Lim, Myoung-Koo Kang, HyeongJun Huh
Publikováno v:
IFAC Proceedings Volumes. 45:101-106
The relationship between grain size of hot-rolled steel sheet and ultrasonic attenuation coefficient has been evaluated in laboarory and pilot plant using laser-based ultrasonic technology. For the measurement of ultrasonics in pilot plant, the Fabry
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::196fb1156bc708c55083bafe9efc3398
https://doi.org/10.3182/20120910-3-jp-4023.00065
https://doi.org/10.3182/20120910-3-jp-4023.00065
Publikováno v:
Review of Scientific Instruments. 74:3664-3669
We present here an active feedback control scheme which can maintain the distance between a laterally vibrating tapered optical fiber tip (TOFT) and a one facet of a laser diode (LD) at optimum value to measure the vibration amplitude of the TOFT in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60a844e0053656018601bb0fd61a7327
https://doi.org/10.1063/1.1588746
https://doi.org/10.1063/1.1588746
Publikováno v:
Microwave and Optical Technology Letters. 42:66-68
This paper presents an all-optical technique for providing a wide-tuning-range K-band microwave-photonic (MWP) voltage-controlled oscillator (VCO). The frequency-tuning range and gain of the VCO are 16 GHz and 25 MHz/mV, respectively. © 2004 Wiley P
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89c5cc82d5224c95e2d6c6f56ad254c8
https://doi.org/10.1002/mop.20209
https://doi.org/10.1002/mop.20209
Publikováno v:
Digest of the LEOS Summer Topical Meetings, 2005..
There have been continuing efforts for using the optical wireless (OWL) or free-space communication as an effective way of connecting subscribers to a fiber backbone. Poor link availability in a hostile weather environment is still an issue for OWL l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b96926905cd9f70d684b652db96c870
https://doi.org/10.1109/leosst.2005.1527980
https://doi.org/10.1109/leosst.2005.1527980
Autor:
M K Kang, HyeongJun Huh, Ki-Jang Oh, S Hashiguchi, Hyun Chul Park, Choong-Soo Lim, Y Nagata, Hirohisa Yamada
Publikováno v:
Journal of Physics: Conference Series. 520:012008
A material property measurement system for steel sheets using laser-based ultrasonics was developed. The system consists of a pulsed Nd:YAG laser for ultrasonic generation and multi-channel interferometer coupled with a CW single frequency laser for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77f153593033de38a50a733f6b4e7420
https://doi.org/10.1088/1742-6596/520/1/012008
https://doi.org/10.1088/1742-6596/520/1/012008
Publikováno v:
2005 Digest of the LEOS Summer Topical Meetings; 2005, p35-36, 2p