http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
컨베이어 진동을 이용한 IDE 적층 압전 캔틸레버 발전 소자의 무선 센서 응용 연구
김창일,이민선,조정호,백종후,장용호,최범진,손천명,서덕기,정영훈,Kim, Chang-il,Lee, Min-seon,Cho, Jung-ho,Paik, Jong-hoo,Jang, Yong-ho,Choi, Beom-jin,Son, Cheon-myoung,Seo, Duk-gi,Jeong, Young-hun 한국전기전자재료학회 2016 전기전자재료학회논문지 Vol.29 No.12
Characteristics of a wireless sensor powered by the IDE (interdigitated electrode) embedded piezoelectric cantilever generator were analyzed in order to evaluate its potential for use in wireless sensor applications. The IDE embedded piezoelectric cantilever was designed and fabricated to have a self-resonance frequency of 126 Hz and acceleration of 1.57 G, respectively, for the mechanical resonance with a practical conveyor system in a thermal-power plant. It produced maximum output power of 2.81 mW under the resistive load of $160{\Omega}$ at 126 Hz. The wireless sensor module is electrically connected to a rectifier capacitor with capacity of 0.68 farad and 3.8 V for power supply by the piezoelectric cantilever generator. The unloaded capacitor could be charged as a rate of approximately $365{\mu}V/s$ while the capacitor exhibited that of 0.997 mV/min. during communication under low duty cycle of 0.2%. Therefore, it is considered that the fabricated IDE embedded piezoelectric cantilever generator can be used for wireless sensor applications.
전력계통 구조물의 상태진단용 자가발전 무선 센서 노드 개발 및 평가
김창일 ( Chang Il Kim ),정영훈 ( Young-hun Jeong ),윤지선 ( Ji Sun Yun ),홍연우 ( Youn Woo Hong ),장용호 ( Yong-ho Jang ),최범진 ( Beom-jin Choi ),박신서 ( Shin-seo Park ),손천명 ( Chun Myung Son ),서덕기 ( Duck Ki Seo ),백종후 ( 한국센서학회 2016 센서학회지 Vol.25 No.5
A self-powered piezoelectric energy harvester was developed for the application in wireless sensor node. The energy harvester was evaluated with power generation characteristics for the wireless sensor node for structural diagnosis of the electric power system. The self-powered wireless sensor node was set to measure temperature, vibration frequency of the electric power system. A piezoelectric harvester composed of 7 uni-morph cantilevers (functionalized as 6 generators and 1 vibration sensor) was connected to be an array and revealed to produce significantly high output power of approximately 10 mW at 120 Hz under 3.4 g((1 g = 9.8 m/sec²). The wireless sensor node could work as the electric power generated by the developed piezoelectric harvester.