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FPGA를 이용한 NMEA2000 선박표준네트워크 프로토콜의 구현
박동현(Dong-Hyun Park),허진영(Jin-Young Hir),김종현(Jong-Hyun Kim),유영호(Yung-Ho Yu),심진보(Jin-Bo Sim),신옥근(Ok-Keun Shin) 한국마린엔지니어링학회 2009 한국마린엔지니어링학회 학술대회 논문집 Vol.2009 No.-
IEC61162-3 known as NMEA2000 protocol is approved standard network of SOLAS ship by ISO and used for the instrument network which exchanges data in real-time. For easy development of ship network equipments, this study is focused on SoC which can convert from various kind of protocols like TCP/IP, NMEA0183, RS422 etc. to NMEA2000 protocol using FPGA and MicroBlaze. In this paper before designing full function SoC, NMEA0183 data communication is implemented and experimented using MicroBlaze DART and hyperterminal of PC.
음향 방출 센서용 Pb(Zn,Ni,Nb)O<sub>3</sub>-Pb(Zr,Ti)O<sub>3</sub> 세라믹스의 유전 및 압전 특성
한종대,류주현,정회승,서동희,Han, Jong-Dae,Yoo, Ju-Hyun,Jeong, Hoy-Seung,Seo, Dong-Hir 한국전기전자재료학회 2016 전기전자재료학회논문지 Vol.29 No.8
In this study, in order to develop composition ceramics for Acoustic Emission (abbreviated as AE) sensor application, the PZT system ceramics was fabricated by conventional solid state reaction method. When x=0.48, the density, electromechanical coupling factor($k_p$), piezoelectric coefficient $d_{33}$ and piezoelectric voltage constant $g_{33}$ of the maximum values of $7.857g/cm^3$, 0.51, 190[pC/N], 52[$10^{-3}mV/N$] were obtained, respectively, suitable for AE sensor.