-
RISS 활용도 분석
-
일본/중국/유럽자료
-
최신/인기 학술자료
-
해외논문구매대행(E-DDS)
http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 권휴상(Hyu-Sang Kwon) (검색결과 54 건)
- 무료
- 기관 내 무료
- 유료
-
원통면 음향 홀로그래피를 이용한 수중음향 곡면배열센서의 빔 해석
권휴상(Kwon, Hyu-Sang), 박성철(Park, Seong-Chol), 서희선(Seo, Hee-Seon), 신구균(Shin, Gu-Kyun), 조치영(Joh, Ghee-Young) 한국소음진동공학회 2009 한국소음진동공학회 논문집 Vol.19 No.10
As an experimental technique to analyze the far-field characteristics of underwater cylindrical array sensors, cylindrical acoustic holography is studied. Inside an laboratory water tank, far-field directivity patterns as well as near-field source images are reconstructed from the measured hologram by hydrophone array. Approximate equation for far-field directivity estimation is derived based on stationary phase method. The simulation and experiment show well usefulness of the proposed method in application of underwater array sensors.
-
음향/진동 측정을 위한 광섬유 결합기의 설계 및 특성실험
권휴상(Kwon, Hyu-Sang), 김경우(Kim, Kyong-Woo) 한국소음진동공학회 2006 한국소음진동공학회 논문집 Vol.16 No.9
This paper presents the design and characterization of a novel fiber optical coupler for intensity modulated fiber optical microphone. Theoretical equations for the optical power coupling are presented in detail including optical path analysis and misalignment. Various optical couplers are simulated and manufactured. A multi-mode to multi-mode coupler is characterized by static and dynamic movements of mirror on a well designed experimental stage.
-
권휴상(Kwon, Hyu-Sang), 박성철(Park, Seong-Chol), 조승현(Cho, Seung-Hyun), 이승석(Lee, Seung-Seok), 김진연(Kim, Jin-Yeon) 한국소음진동공학회 2009 한국소음진동공학회 논문집 Vol.19 No.1
This paper describes a general approach for processing data from an omni-directional guided wave transducer array for the rapid inspection of large plate structures. A basic phased array algorithm is presented that can be applied to any array geometry. For guided waves on plate, beam steering algorithm is derived and the corresponding beam pattern is analyzed. The algorithms are applied to simulation and experimental data. The results show well its usefulness in structural applications.
-
기판접합기술을 이용한 MEMS 컨덴서 마이크로폰의 설계와 제작
권휴상(Kwon, Hyu-Sang), 이광철(Lee, Kwang-Cheol) 한국소음진동공학회 2006 한국소음진동공학회 논문집 Vol.16 No.12
This paper presents a novel MEMS condenser microphone with rigid backplate to enhance acoustic characteristics. The MEMS condenser microphone consists of membrane and backplate chips which are bonded together by gold-tin(Au/Sn) eutectic solder bonding. The membrane chip has $2.5mm{\times}2.5mm$, 0.5${\mu}m$ thick low stress silicon nitride membrane, $2mm{\times}2mm$ Au/Ni/Cr membrane electrode, and 3${\mu}m$ thick Au/Sn layer. The backplate chip has $2mm{\times}2mm$, 150${\mu}m$ thick single crystal silicon rigid backplate, $1.8mm{\times}1.8mm$ backplate electrode, and air gap, which is fabricated by bulk micromachining and silicon deep reactive ion etching. Slots and $50{\sim}60{\mu}m$ radius circular acoustic holes to reduce air damping are also formed in the backplate chip. The fabricated microphone sensitivity is 39.8 ${\mu}V/Pa$(-88 dB re. 1 V/Pa) at 1 kHz and 28 V polarization voltage. The microphone shows flat frequency response within 1 dB between 20 Hz and 5 kHz.
-
-
-
광 마이크로폰 설계를 위한 경사 절단된 멀티모드 광섬유의 조도분포 해석
김경우(Kim, Kyong-Woo), 제우성(Che, Woo-Seong), 권휴상(Kwon, Hyu-Sang) 한국소음진동공학회 2008 한국소음진동공학회 논문집 Vol.18 No.12
For designing intensity modulation type optical microphone, the irradiance distribution which can be applied to inclined-cut geometrical configuration is suggested. The model is important in analysis of response characteristics for intensity modulation type optical microphone. To overcome low sensitivity problem in intensity modulation type optical microphone, inclined-cut optical fiber is considered here. Based on optical geometry, the inclined-cut optical fiber sensor is designed and fabricated. The experiments are carried out to evaluate sensor performance.
-
-
-
NDSL
DBpia
