http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
적층조건 최적화된 압전 후막 소자를 이용한 진동 압전 에너지 하베스팅 시스템
안정환(Jung Hwan Ahn),홍성도,우민식(Min Sik Woo),조대흥(Dae Heung Cho),조재용(Jae Yong Cho),황성주(Sung Joo Hwang),성태현(Tae Hyun Sung) 한국소음진동공학회 2015 한국소음진동공학회 학술대회논문집 Vol.2015 No.4
Research about optimizing lamination condition in order to improve the properties of piezoelectric thick films fabricated by tape casting has found that the highest piezoelectric strain constant (260.2 pC/N) is obtained at 2 MPa pressure and 180 second press time lamination condition. The sintering temperature of the samples was 1100 °C. A piezoelectric energy harvesting (PEH) system was subsequently designed based on a cantilever beam structure, in which an optimized PZT thick film was attached to a stainless steel substrate. Analysis of the frequency tendency of this system’s open circuit voltage identified a maximum peak of 4.08 V <SUB>RMS</SUB> and a resonance frequency of 35Hz. Measurement of the output voltage and output power of the PEH system also revealed that a maximum output power density of 0.21 mW/㎤ could be achieved at a matching load of 900 kΩ. These results show that a material with a sufficiently high energy density for use in energy harvesting devices can be achieved by subjecting a PZT thick film to optimized lamination conditions.